Variational principlesSee also what's at Wikipedia, your library, or elsewhere.
Broader term:Narrower terms:Used for: Extremum principles
 Minimal principles
 Variation principles

Filed under: Variational principles A variational principle for compressible fluid mechanics : discussion of the multidimensional theory (National Aeronautics and Space Administration, Scientific and Technical Information Branch ;, 1982), by Robert Joel Prozan, Inc Continuum, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, and Langley Research Center (page images at HathiTrust)
 A variational principle for magnetohydrodynamic channel flow (National Aeronautics and Space Administration ;, 1969), by Norman C. Wenger, United States National Aeronautics and Space Administration, and Lewis Research Center (page images at HathiTrust)
 Du principe de la moindre action et du principe de d'Alembert dans les mouvements relatifs ... (V. Dalmont, 1857), by Edouard Phillips (page images at HathiTrust)
 Variational principles and the virial theorem in problems on continuous spectra in quantum mechanics (Oak Ridge, Tennessee : U.S. Atomic Energy Commission, Technical Information Service, 1953., 1953), by I︠U︡. N. Demkov, U.S. Atomic Energy Commission, and National Science Foundation (U.S.) (page images at HathiTrust)
Filed under: Fermat's theorem On Pythagorean numbers and on Fermat's last theorem ([University of Chicago press], 1913), by Val. Mar Szpunar (page images at HathiTrust)
 Diophantus of Alexandria; a study in the history of Greek algebra (University Press, 1910), by Thomas Little Heath and Leonhard Euler (page images at HathiTrust)
 Der Pythagoreischen Lehrsatz; mit einem Ausblick auf das Fermatsche problem (B. G. Teubner, 1912), by Walther Lietzmann (page images at HathiTrust; US access only)
 Proof of Fermat's theorem, and McGinnis' theorem of derivative equations in an absolute proof of Fermat's theorem : reduction of the general equation of the fifth degree to an equation of the fourth degree; and supplementary theorems (L.C. Hjorth & sons, 1913), by M. A. McGinnis (page images at HathiTrust)
 Three lectures on Fermat's last theorem (The University Press, 1921), by L. J. Mordell (page images at HathiTrust; US access only)
 An attempted proof of Fermat's last theorem by a new method (G. E. Stechert & co., 1932), by Correa Moylan Walsh (page images at HathiTrust; US access only)
 Das Fermatproblem in seiner bisherigen Entwicklung (Vereinigung Wissenschaftlicher Verleger, 1919), by Paul Gustav Heinrich Bachmann (page images at HathiTrust; US access only)
 Om Fermat's s. k. stora sats och några därmed sammanhängande undersökningar (Berlingska Boktryckeriet, 1914), by Axel Johan Daniel Arwin (page images at HathiTrust; US access only)
 Der pythagoreische Lehrsatz, mit einem Ausblick auf das Fermatsche Problem (B.G. Teubner, 1917), by Walther Lietzmann (page images at HathiTrust; US access only)
 Verhandlung der allgemeinen auflosung des theorems Fermats .... (Van Dorp & Co., 1912), by J. J. Feijtes (page images at HathiTrust; US access only)
 Beitrag zum Beweis der Fermatschen Satzes. (Brandstetter, 1910), by Hermann Stockhaus (page images at HathiTrust; US access only)
 Beweis des Fermat'schen Satzes. (H. L. Schlapp, 1908), by Ludwig Best (page images at HathiTrust; US access only)
 Derivation of criteria for the first case of Fermat's last theorem and the combination of these criteria to produce a new lower bound for the exponent. ([Ithaca, N.Y.], 1948), by Norman Gustav Gunderson (page images at HathiTrust; US access only)
 Untersuchungen über den Fermatschen satz (Im selbstverlage des verfassers, 1928), by Ferdinand Lindemann (page images at HathiTrust; US access only)
 Über den sogenannten letzten Fermat'schen Satz (Veit, 1909), by Ferdinand Lindemann (page images at HathiTrust; US access only)
 Sur la généralisation du problème de Fermat. (A.F. Høst, 1921), by Niels Nielsen (page images at HathiTrust; US access only)
 Diophantos of Alexandria : a study in the history of Greek algebra (University Press, 1989), by Thomas Little Heath and of Alexandria Diophantus (page images at HathiTrust; US access only)
 Über das letzte Fermatsche Theorem (B.G. Teubner, 1910), by Benno Lind (page images at HathiTrust; US access only)
 Fermat's last theorem : rigid proof by elementary algebra, also dissertation on test for primes and recurring decimals (G. Bell and Sons, 1916), by M. Cashmore (page images at HathiTrust; US access only)
 Diophantus of Alexandria : a study in the history of Greek algebra (University Press, 1982), by Thomas Little Heath and Leonhard Euler (page images at HathiTrust; US access only)
 Diophantus of Alexandria, a study in the history of Greek algebra (University Press, 1910), by Thomas Little Heath and Leonhard Euler (page images at HathiTrust)
Filed under: Fermat's theorem  Early works to 1800Filed under: Least action The Principle of Least Action (reprinted from The Monist; Chicago: Open Court Pub. Co., 1913), by Philip E. B. Jourdain (page images at HathiTrust)
 Der mathematiker Johann Samuel König und das princip der kleinsten aktion. (K. J. Wyss, 1889), by J. H. Graf (page images at HathiTrust)
 Geschichte des princips der kleinsten action. (Veit & comp., 1877), by Adolph Mayer (page images at HathiTrust)
 Essai de cosmologie (s.n.], 1751), by Maupertuis (page images at HathiTrust)
 Du principe de la moindre action et du principe de d'Alembert dans les mouvements relatifs ... (V. Dalmont, 1857), by Edouard Phillips (page images at HathiTrust)
Items below (if any) are from related and broader terms.
Filed under: Calculus of variations Variational Analysis (based on the third printing of 2009), by R. Tyrrell Rockafellar and Roger J.B. Wets (PDF at Washington)
 The Calculus of Variations in the Large (American Mathematical Society Colloquium Publications v18, c1934, reprinted 1947), by Marston Morse (multiple formats at archive.org)
 Calculus of Variations (Carus Mathematical Monograph #1; Chicago: Pub. for the Mathematical Association of America by the Open Court Pub. Co., c1925), by Gilbert Ames Bliss (page images at HathiTrust)
 Lectures on the Calculus of Variations (the Weierstrassian Theory), by Harris Hancock (page images at Cornell)
 A Treatise on the Calculus of Variations, by Lewis Buffett Carll (page images at Cornell)
 A Treatise on the Integral Calculus and Its Applications With Numerous Examples (1889 edition), by I. Todhunter (page images at Cornell)
 [Pamphlets.]. ([France] : [various publishers], 18981905., 1898), by Jacques Hadamard (page images at HathiTrust; US access only)
 Mathematische werke von Karl Weierstrass. (Mayer & Müller, 1894), by Karl Weierstrass, Rudolf Ernst Rothe, G. Hettner, Johannes Knoblauch, and Deutsche Akademie der Wissenschaften zu Berlin (page images at HathiTrust; US access only)
 Mathematical tracts on physical astronomy, the figure of the earth, precession and nutation, and the calculus of variations. Designed for the use of students in the university (Printed by J. Smith, 1826), by George Biddell Airy (page images at HathiTrust)
 Mathematical tracts on the lunar and planetary theories : the figure of the earth, precession and nutation, the calculus of variations, and the undulatory theory of optics (Deighton ;, 1842), by George Biddell Airy (page images at HathiTrust)
 Lectures on applied mathematics. (Spartan Books, 1962), by Francis D. Murnaghan (page images at HathiTrust)
 Anfangsgrunde der analysis des unendlichen. (Vandenhoek und Ruprecht, 1799), by Abraham Gotthelf Kaestner (page images at HathiTrust)
 The dependence of the topography of envelopes of systems of extremals on curvature (Press of the New era printing company, 1917), by George Heyser Light (page images at HathiTrust)
 Calculus of variations. Supplementary notes and exercises to 19451946 notes, at New York University. ([New York, 1950), by Richard Courant (page images at HathiTrust)
 A treatise on isopeimetrical problems, and the calculus of variations. (Printed by J. Smith, 1810), by Robert Woodhouse (page images at HathiTrust)
 Die Theorie der Variationsrechnung. (Berlin, 1857), by O. Simon and Berlin (Germany) Joachimsthalsches gymnasium (page images at HathiTrust)
 Invariants of the function F(x̳, y̳, x̳,́ y̳)́ in the calculus of variations. (Press of the New era printing company, 1908), by Anthony Lispenard Underhill (page images at HathiTrust)
 Cours d'analyse de l'École polytechnique (GauthierVillars et fils, 1893), by Camille Jordan (page images at HathiTrust)
 An elementary treatise on the integral calculus containing applications to plane curves and surfaces, and also a chapter on the calculus of variations, with numerous examples. (Longmans, Green, and co., 1891), by Benjamin Williamson (page images at HathiTrust)
 A variational approach to differential games. (Rand Corp., 1961), by L. D. Berkovitz (page images at HathiTrust)
 Calculus of variations 19451946 ([New York, 1956), by Richard Courant and J. Moser (page images at HathiTrust)
 Jacobi's condition for the problem of Lagrange in the calculus of vaiations... ([Lancaster, Pa., New York, 1916), by David Melville Smith (page images at HathiTrust)
 The second derivatives of the extremalintegral... (New era printing company, 1908), by Arnold Dresden (page images at HathiTrust)
 Die anwendung der integralgleichungen auf die zweite variation bei isoperimetrischen problemen ... (Univ.buchdr. von W.F. Kaestner, 1907), by William De Weese Cairns (page images at HathiTrust; US access only)
 Kreis und kugel (Verlag von Veit & comp., 1916), by Wilhelm Blaschke (page images at HathiTrust; US access only)
 Das räumliche isoperimetrische Problem (W. Fr. Kaestner, 1907), by A. R. Crathorne (page images at HathiTrust; US access only)
 A treatise on the integral calculus and its applications. with numerous examples. (Macmillan and co., 1880), by I. Todhunter (page images at HathiTrust)
 A treatise on the integral calculus and its applications with numerous examples. (Macmillan & co., 1868), by I. Todhunter (page images at HathiTrust)
 An elementary treatise on the integral calculus, containing applications to plane curves and surfaces, and also a chapter on the calculus of variations, with numerous examples. (Longmans, Green and Co., 1880), by Benjamin Williamson (page images at HathiTrust)
 A treatise on the calculus of variations. (J. Richardson, 1837), by Richard Abbatt (page images at HathiTrust)
 Felicis Aloysii Balassi Foroliviensis ... Mechanica quædam theoremata atque problemata. (ex typographia S. Michaelis ad Ripam, Apud hæredes F.B. Komarek, sumptibus J. Ughetti, 1766), by Felice Luigi Balassi (page images at HathiTrust)
 Felicis Aloysii Balassi Foroliviensis ... Nova mechanica theoremata atque problemata de quibusdam proprietatibus circuli, curvarum secundi gradus, parabolæ quadraticocubicæ, et cycloidis, deque curvis a centro gravitatis descriptis sub datis conditionibus. (Romae, 1768), by Felice Luigi Balassi (page images at HathiTrust)
 Calculus of variations (Pub. for the Mathematical Association of America by the Open Court publishing company, 1935), by Gilbert Ames Bliss (page images at HathiTrust)
 Lectures on the calculus of variations (The University of Chicago press, 1904), by O. Bolza (page images at HathiTrust)
 Vorlesungen über variationsrechnung (B. G. Teubner, 1909), by O. Bolza (page images at HathiTrust; US access only)
 A treatise on the calculus of variations : arranged with the purpose of introducing, as well as illustrating, its principles to the reader by means of problems, and designed to present in all important particulars a complete view of the present state of the science (Macmillan, 1885), by Lewis Buffett Carll (page images at HathiTrust)
 Cours d'analyse de l'École polytechnique (GauthierVillars, 1909), by Camille Jordan (page images at HathiTrust; US access only)
 Festschrift zur Feier des Fünfzigjährigen Bestehens der Realschule I. o. (früheren höheren Bürgerschule) zu Köln. (M. DuMontSchauberg, 1878), by Cologne (Germany) Realschule, Johann Jacob Weyland, C. H. Ferrier, and H. Schellen (page images at HathiTrust)
 Analytische Darstellung der Variationsrechnung : mit Anwendung derselben auf die Bestimmung des Grössten und Kleinsten (A. M. Schlesinger, 1823), by E. H. Dirksen (page images at HathiTrust)
 Calculus of variations (The University press, 1927), by Andrew Russell Forsyth (page images at HathiTrust)
 Leçons sur le calcul des variations (A. Hermann et fils, 1910), by Jacques Hadamard and Maurice Fréchet (page images at HathiTrust; US access only)
 An elementary treatise on the calculus of variations (J. McGlashan;, 1850), by John Hewitt Jellett (page images at HathiTrust)
 Die Grundlehren der Variationsrechnung (Hofbuchh. von E. Leibrock, 1860), by John H. Jellett and C. H. Schnuse (page images at HathiTrust)
 Lehrbuch der Variationsrechnung (F. Vieweg und Sohn, 1900), by Adolf Kneser (page images at HathiTrust; US access only)
 Lehrbuch der Variationsrechnung (F. Vieweg & Sohn, 1925), by Adolf Kneser (page images at HathiTrust; US access only)
 Aspects of the calculus of variations (University of California Press, 1939), by Hans Lewy and John Willie Green (page images at HathiTrust)
 Grundlegung der theorie des variationscalculs. (Würzburg, 1861), by Alois Mayr (page images at HathiTrust)
 Nouveaux éléments du calcul des variations. (H. Dessain, 1856), by A. Meyer (page images at HathiTrust)
 Lec̦ons de calcul des variations (MalletBachelier, 1861), by abbé Moigno (page images at HathiTrust)
 Die variationsrechnung. (B.G. Teubner, 1899), by Ernesto Pascal and Adolf Schepp (page images at HathiTrust; US access only)
 Abhandlungen über variationsrechnung ... (W. Engelmann, 1894), by Paul Stäckel, C. G. J. Jacobi, A. M. Legendre, J. L. Lagrange, Leonhard Euler, Jakob Bernoulli, and Jean Bernoulli (page images at HathiTrust)
 Theorie und anwendung des sogennanten variationscalcul's (Meyer & Zeller, 1849), by Georg Wilhelm Strauch (page images at HathiTrust)
 Introduction to the calculus of variations (Harvard University Press, 1917), by William Elwood Byerly (page images at HathiTrust)
 Geschichte der Variationsrechnung ... Erster theil ... (Torgau, 1857), by Karl Franz Giesel (page images at HathiTrust)
 Lectures on the calculus of variations : (the Weierstrassian theory) (Cincinnati university press, 1904), by Harris Hancock (page images at HathiTrust)
 The calculus of variations in the large (Published by the American Mathematical Society, 1934), by Marston Morse, Herman H. Goldstine, and Waverly Press (page images at HathiTrust; US access only)
 Researches in the calculus of variations, principally on the theory of discontinuous solutions: an essay to which the Adams prize was awarded in the University of Cambridge in 1871. (Macmillan and co., 1871), by I. Todhunter (page images at HathiTrust)
 A history of the progress of the calculus of variations during the nineteenth century. (Macmillan and co., 1861), by I. Todhunter (page images at HathiTrust)
 Fondamenti di calcolo delle variazioni. (N. Zanichelli, 1921), by Leonida Tonelli (page images at HathiTrust; US access only)
 Elementi del calcolo delle variazioni. (G. Principato, 1923), by G. Vivanti (page images at HathiTrust; US access only)
 Untersuchungen zur Variationsrechnung (G. Schade (O. Francke), 1894), by Ernst Zermelo (page images at HathiTrust)
 O počtu variačním. (Nák. Vlastním, 1872), by F. J. Studnička (page images at HathiTrust)
 Volterra's derivative of a function of a curve (Lord Baltimore Press, 1913), by Charles Albert Fischer (page images at HathiTrust)
 Necessary conditions in the problem of Mayer in the calculus of variations ... ([Lancaster, Pa., 1919), by Gillie Aldah Larew (page images at HathiTrust)
 An isoperimetric problem with variable endpoints ... ([Baltimore, 1919), by Archibald Shepard Merrill (page images at HathiTrust)
 Ueber die diskontinuirlichen lösungen in der variationsrechnung... (Druck der Dieterich'schen univ.buchdruckerei (W. F. Kaestner), 1904), by Constantin Carathéodory (page images at HathiTrust; US access only)
 Kurs varīat͡sīonnago ischislenīi͡a (Universitetskai͡a tipografīi͡a, 1893), by Egor Fedorovich Sabinin (page images at HathiTrust)
 Variat͡sionnoe ischislenie, v obʺemi͡e universitetskago kursa. (N. I͡A. Ogloblin, 1890), by M. E. VashchenkoZakharchenko (page images at HathiTrust)
 Lehrbuch der Variationsrechnung und ihrer Anwendung bei Untersuchungen über das Maximum und Minimum. (J. G. Luckhardt, 1854), by Friedrich Ludwig Stegmann (page images at HathiTrust)
 Grundriss der Variationsrechnung (F. Vieweg und Sohn, 1867), by Joseph Dienger (page images at HathiTrust)
 Zum problem von Lagrange; vier Vorträge gehalten im Mathematischen Seminar der Hamburgischen Universität (7.24. Juli 1928) ... (Verlag B. G. Teubner, 1928), by Johann Radon (page images at HathiTrust; US access only)
 The dependence of focal points upon curvature for problems of the calculus of variations in space ... (The New era printing company, 1912), by Marion Ballantyne White (page images at HathiTrust)
 A treatise on the calculus of variations : arranged with the purpose of introducing, as well as illustrating, its principles to the reader by means of problems, and designed to present in all important particulars a complete view of the present state of the science (J. Wiley & Sons, 1881), by Lewis Buffett Carll (page images at HathiTrust)
 Variation, its extension and application to problemsolving. (Cambridge, Mass., 1951), by Barnett Rich (page images at HathiTrust)
 A treatise on the integral calculus and its applications with numerous examples. (Macmillan and Co., limited;, 1906), by I. Todhunter (page images at HathiTrust)
 A treatise on infinitesimal calculus; containing differential and integral calculus, calculus of variations, applications to algebra and geometry, and analytical mechanics. (The University Press, 1852), by Bartholomew Price (page images at HathiTrust)
 Elementi del calcolo delle variazioni. (Casa Editrice Giuseppe Principato, 1923), by G. Vivanti (page images at HathiTrust; US access only)
 Leçons de calcul des variations (MalletBachelier, 1861), by L. Lindelöf (page images at HathiTrust)
 Mathematical tracts on the lunar and planetary theories, the figure of the earth, precession and nutation, the calculus of variations, and the undulatory theory of optics. Designed for the use of students in the university. (Macmillan and co., 1858), by George Biddell Airy (page images at HathiTrust)
 Défaut de tout fondement à la méthode des variations d'Euler et Lagrange; la fonction de maximum et de minimum dans les isopérimètres ... (Ravenna, 1917), by Federico Eredi (page images at HathiTrust; US access only)
 Absolute minima for space problems of the calculus of variations in parametric form. (Chicago : [publisher not identified], 1929., 1929), by Harold Hardesty Downing (page images at HathiTrust; US access only)
 Über das identische Verschwinden der Hauptgleichungen der Variation vielfacher Integrale (B. G. Teubner, 1910), by Paul Wittsack (page images at HathiTrust; US access only)
 Ueber die minimaleigenschaft der kugel. (Dieterich, 1903), by Johann Oswald Müller (page images at HathiTrust; US access only)
 Untersuchung zur Variationsrechnung : Ueber eine neue Methode in der Variationsrechnung (Druck der Dietrich'schen UniversitätsBuchdruckerei (W. F. Kaestner), 1902., 1902), by Nadeschda Gernet (page images at HathiTrust; US access only)
 Ueber die Form und Stabilität gewisser Flüssigkeitstropfen. (Univ.Buchdruckerei, 1907), by Elijah Swift (page images at HathiTrust; US access only)
 Konjugierte Punkte im Sinne der Variationsrechnung bei den kurven kleinsten Trägheitsmomentes und verwandten Aufgaben (HochschulVerlag, 1927), by Charlotte Hansen (page images at HathiTrust; US access only)
 Konjugierte Punkte bei Widerstandsaufgaben der Variationsrechnung (H. Fleischmann, 1917), by Curt Lindemann (page images at HathiTrust; US access only)
 Generation of GATE ship speed data by variational technique (Washington, D.C. : United States Department of Commerce, National Oceanic and Atmospheric Administration, Environmental Data Service, Center for Experiment Design and Data Analysis, [1975], 1975), by Jerry Sullivan, United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, and Center for Experiment Design and Data Analysis (page images at HathiTrust)
 Anwendung des sogenannten Variationscalcul's auf zweifache und dreifache Integrale (K. Gerold, 1859), by Georg Wilhelm Strauch (page images at HathiTrust)
 Calculus of variations (Cincinnati University Press, 1904), by Harris Hancock (page images at HathiTrust)
 Cours d'analyse de l'École polytechnique (GauthierVillars et fils, 1883), by Camille Jordan (page images at HathiTrust)
 An elementary treatise on the integral calculus, containing applications to plane curves and surfaces, and also a chapter on the calculus of variations, with numerous examples. (Longmans, Green, 1920), by Benjamin Williamson (page images at HathiTrust)
 Untersuchungen zur Variationsrechnung. (Berlin, 1894), by Ernst Zermelo (page images at HathiTrust)
 Calculus of variations and supplementary notes and exercises, 19451946. (New York University, 1957), by Richard Courant and Jürgen Moser (page images at HathiTrust)
 Die Variationsrechnung. (B. G. Teubner, 1899), by Ernesto Pascal and Adolf Schepp (page images at HathiTrust; US access only)
 Leçons de calcul différentiel et de calcul intégral, rédigées d'après les méthodes et les ouvrages publiés ou inédits de A. L. Cauchy. Tome IV., Ier fasc.: Calcul des variations. (GauthierVillars, 1861), by abbé Moigno (page images at HathiTrust)
 Leçons sur les fonctions de lignes (GauthierVillars, 1913), by Vito Volterra and Joseph Pérès (page images at HathiTrust; US access only)
 Leçons sur le calcul des variations (A. Hermann et fils, 1910), by Jacques Hadamard and Maurice Fréchet (page images at HathiTrust; US access only)
 Determinatio superficiei minimae rotatione curvae data duo puncta jungentis circa datum axem ortae. (typis Dieterichianis, 1831), by Benjamin Goldschmidt (page images at HathiTrust)
 Mathematical tracts on the lunar and planetary theories, the figure of the earth, precession and nutation, the calculus of variations, and the undulatory theory of optics. Designed for the use of students in the university. (J. & J.J. Deighton;, 1831), by George Biddell Airy (page images at HathiTrust)
 Cours de calcul différentiel et intégral. (Paris, 1868), by J.A. Serret (page images at HathiTrust)
 A history of the calculus of variations during the nineteenth century. (Chelsea Pub. Co., 1962), by I. Todhunter (page images at HathiTrust)
 Geschichte des isoperimetrischen problems, eine geschichtliche darstellung der variationsrechnung von Bernouilli bis Lagrange ... (Lehmannsche buchdruckerei, 1888), by Ludwig i. e. Ernst Ludwig Anton (page images at HathiTrust)
 Untersuchung über die Grenzen, zwischen welchen Unduloide und Nodoide : die von zwei festen Parallelkreisflächen begrenzt sind, bei gegebenem Volumen ein Minimum der Oberfläche besitzen (Dieterichschen Univ.Buchdruckerei, 1887), by Gustav Hormann, Goerg Hamel, August Otte, and Oswald Venske (page images at HathiTrust; US access only)
 Ein problem der variationsrechnung. (Altenburg, 1913), by A. Patuschka (page images at HathiTrust; US access only)
 Jacobian variational principles and the equivalence of second order systems / Gordon. (Naval Research Laboratory, 1972), by William B. Gordon (page images at HathiTrust; US access only)
 Mixed formulation for frictionless contact problems (National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ;, 1989), by Ahmed Khairy Noor and Kyun O. Kim (page images at HathiTrust)
 Necessary conditions for optimal lunar trajectories with discontinuous state variables and intermediate point constraints (National Aeronautics and Space Administration ;, 1967), by W. E. Miner, J. F. Landrus, Northrop Space Laboratories, and Electronics Research Center (U.S.) (page images at HathiTrust)
 Multisegmented optimal trajectories (NASA ;, 1968), by Thomas L. Vincent and University of Arizona (page images at HathiTrust; US access only)
 Applications of the calculus of variations to aircraft performance (National Aeronautics and Space Administration, 1966), by T. L. Vincent, T. Ishihara, and F. Lutze (page images at HathiTrust; US access only)
 The linear time optimal control problem from a calculus of variations point of view (National Aeronautics and Space Administration ;, 1970), by Lawrence M. Hanafy, Langley Research Center, and North Carolina State University (page images at HathiTrust)
 Primer vector theory and applications (National Aeronautics and Space Administration ;, 1975), by Donald J. Jezewski and Lyndon B. Johnson Space Center (page images at HathiTrust)
 NASA TN D5998 (National Aeronautics and Space Administration:, 1970), by Omer F. Spurlock, Fred Teren, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
 NASA TN D5438 (National Aeronautics and Space Administration ;, 1969), by Waldo I. Oehman, Sylvia A. Wallace, Langley Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
 A treatise on the integral calculus and its applications with numerous examples (Macmillan, 1862), by I. Todhunter (page images at HathiTrust)
 Of false discontinuity with illustrations from Fourier's theorem and the calculus of variations (Deighton, Bell, 1871), by M. M. U. Wilkinson (page images at HathiTrust)
 Utkast till isoperimetriska problemers fullständiga solution ... (Edquist & Berglund, 1866), by C Lundström (page images at HathiTrust)
 Mathematical tracts on physical astronomy, the figure of the earth, precession and nutation, and the calculus of variations. (Sold by Deighton, 1826), by George Biddell Airy (page images at HathiTrust)
 Cours d'analyse de l'École polytechnique (GauthierVillars et fils, 1896), by Camille Jordan (page images at HathiTrust; US access only)
 An elementary treatise on the integral calculus, containing applications to plane curves and surfaces, and also chapter on the calculus of variations, with numerous examples. (Longmans, Green, and co., 1913), by Benjamin Williamson (page images at HathiTrust; US access only)
 A treatise on the integral calculus and its applications with numerous examples. (Macmillan, 1921), by I. Todhunter (page images at HathiTrust; US access only)
 Vorlesungen über Variationsrechnung (B. G. Teubner, 1909), by O. Bolza (page images at HathiTrust; US access only)
 Máximum y mínimum de funciones (Imprenta Universitania, 1917), by Diego Berendique (page images at HathiTrust; US access only)
 Treatise on the integral calculus and its applications with numerous examples (Macmillan, 1874), by I. Todhunter (page images at HathiTrust)
 A treatise on the integral calculus and its applications with numerous examples. (Macmillan and co., limited, 1878), by I. Todhunter (page images at HathiTrust)
 Calcolo delle variazioni e calcolo delle differenze finite. (III parte del Calcolo infinitesimale) (U. Hoepli, 1897), by Ernesto Pascal and Ernesto Pascal (page images at HathiTrust)
 Vorlesungen über FlachenTheorie und VariationsRechnung. ([n. p.], 1900), by David Hilbert and E. R. Hedrick (page images at HathiTrust; US access only)
 Variationsrechnung (Göttingen, 1896), by Arnold Sommerfeld, E. J. Townsend, Otto Blumenthal, and Post1650 Manuscript Collection (University of Illinois at UrbanaChampaign Library) (page images at HathiTrust)
 Ueber ein die flächen kleinsten flächeninhalts betreffendes problem der variationsrechnung. Festschrift zum jubelgeburtstage des herrn Karl Weierstrass. (1885), by Karl Hermann Amandus Schwarz (page images at HathiTrust)
 An elementary treatise on the integral calculus, containing applications to plane curves and surfaces, and also chapters on the calculus of variations, with numerous examples. (Longmans, Green, and Co., 1896), by Benjamin Williamson (page images at HathiTrust)
 A treatise on the calculus of variations. Arranged with the purpose of introducing, as well as illustrating, its principles to the reader by means of problems, and designed to present in all important particulars a complete view of the present state of the science. (J. Wiley & sons, 1881), by Lewis Buffett Carll (page images at HathiTrust)
 A treatise on the integral calculus and its applications with numerous examples (Macmillan, 1889), by I. Todhunter (page images at HathiTrust)
 An elementary treatise on the integral calculus : containing applications to plane curves and surfaces, with numerous examples (Appleton, 1888), by Benjamin Williamson (page images at HathiTrust)
 Researches in the calculus of variations, principally on the theory of discontinuous solutions: an essay to which the Adams prize was awarded in the University of Cambridge in 1871. (Stechert, 1924), by I. Todhunter (page images at HathiTrust; US access only)
 Theory of differentiation (University of Minnesota, 1965), by J. Serrin (page images at HathiTrust; US access only)
 Lecons de calcul des variations (MalletBachelier, 1968), by Lorenz Leonard Lindelöf (page images at HathiTrust; US access only)
 Introduction to analysis in the large (Institute for Advanced Study, 1951), by Marston Morse and N.J.) Institute for Advanced Study (Princeton (page images at HathiTrust; US access only)
 A treatise on infinitesimal calculus containing differential and integral calculus, calculus of variations, applications to algebra and geometry, and analytical mechanics. (The University press, 1852), by Bartholomew Price (page images at HathiTrust)
 The moments of a variate related to the noncentral t* (Rutgers, The State University], 1961), by David Hogben (page images at HathiTrust; US access only)
 A machine program for theoremproving (New York, New York : New York University, Institute of Mathematical Sciences, 1961., 1961), by Martin Davis, Donald W. Loveland, George Logemann, United States. Air Force. Office of Scientific Research, and New York University. Institute of Mathematical Sciences (page images at HathiTrust)
 The isoperimetric inequality and associated boundary problems (Washington D. C. : Mathematics Division, Office of Scientific Research, U.S. Air Force, 1958., 1958), by William T. Reid and United States. Air Force. Office of Scientific Research (page images at HathiTrust)
 Self organizing mechanisms as models for scientific theories ([Washington, D.C.] : Air Force Office of Scientific Research, United States Air Force, 1961., 1961), by E. W. Bastin, K. Sparck Jones, and United States. Air Force. Office of Scientific Research (page images at HathiTrust)
 Functions with generalized gradient and generalized surfaces : Twodimensional problems of the calculus of variations (Purdue University, Department of Mathematics, Purdue Research Foundation, 1957), by Wendell H. Fleming, United States. Air Force. Office of Scientific Research, and Purdue Research Foundation (page images at HathiTrust)
 A Class of twopoint boundary problems ([Washington, D.C.] : [United States Air Force, Office of Scientific Research], [1957], 1957), by William T. Reid, United States. Air Force. Office of Scientific Research, and Ill.). Department of Mathematics Northwestern University (Evanston (page images at HathiTrust)
 An elementary treatise on the integral calculus containing applications to plane curves and surfaces and also a chapter on the calculus of variations with numerous examples. (D. Appleton, 1891), by Benjamin Williamson (page images at HathiTrust)
 On the optimum design of multipath signals (L.G. Hansom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1964., 1964), by Neil J. Bershad and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
 Lectures on the calculus of variations (s.n., 1916), by Gilbert Ames Bliss (page images at HathiTrust)
 Leçons de calcul différentiel et de calcul intégral : redigées d'après les méthodes et les ouvrages publiés ou inédits de M.A.L. Cauchy (Bachelier, 1840), by Augustin Louis Cauchy, Lorentz Leonard Lindelöf, and abbé Moigno (page images at HathiTrust)
 An elementary treatise on the integral calculus : containing applications to plane curves and surfaces, and also chapters on the calculus of variations, with numerous examples (Longmans, Green, 1926), by Benjamin Williamson (page images at HathiTrust; US access only)
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