• 3 Books

• 2 Mathematicians
• 2 Mathematics
• 1 Correspondence
• 1 Differential equations, Partial
• 1 Frege, Gottlob, 1848-1925
• 1 Friedrichs, K. O. (Kurt Otto), 1901-1983
• 1 Landau, Edmund, 1877-1938
• 1 Spectral theory (Mathematics)

• 1 Bateman, P. T
• 1 Frege, Gottlob, 1848-1925
• 1 Friedrichs, K. O. (Kurt Otto), 1901-1983
• 1 Gabriel, Gottfried, 1943-
• 1 Landau, Edmund, 1877-1938
• 1 Mirsky, L. (Leonid)
• 1 Morawetz, Cathleen S

• 1 French

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