The Online Books Page

Books by G. L. Krabbe:

Books in the extended shelves:

• Krabbe, G. L.: Convolution operators which are not of scalar type (Washington, D.C. : United States Air Force, Office of Scientific Research, 1958., 1958), also by Purdue University, United States. Air Force. Office of Scientific Research, and Purdue Research Foundation (page images at HathiTrust)
• Krabbe, G. L.: On the Spectra of certain Laurent matrices : Some spectral mappings on the space Lp (Washington D. C. : Mathematics Division, Office of Scientific Research, U.S. Air Force, 1956., 1956), also by United States. Air Force. Office of Scientific Research and Purdue Research Foundation (page images at HathiTrust)
• Krabbe, G. L.: Spectral invariance of convolution operators on Lp ( -[infinity], [infinity]) : Some spectral mappings on the space Lp (Washington, D.C. : United States Air Force, Office of Scientific Research, 1957., 1957), also by United States. Air Force. Office of Scientific Research and Purdue Research Foundation (page images at HathiTrust)

Find more by G. L. Krabbe at your library, or elsewhere.