Oscillation criteria for general linear ordinary differential equations

Non-oscillation theorems

Einar Hille · Transactions of the American Mathematical Society · 1948 · 341 citations · Full text

Real-valued Function, Linearly Independent Solutions, Oscillation Theory +2

Non-Oscillation Theorems

Einar Hille · Transactions of the American Mathematical Society · 1948 · 110 citations

A necessary condition on the extreme points of a class of holomorphic functions

Frank Forelli · Pacific Journal of Mathematics · 1977 · 48 citations · Full text

Cayley Transform, Representation Theory, Extreme Point +8

Partitions of groups and complete mappings

Richard Friedlander, Basil Gordon, Peter Tannenbaum · Pacific Journal of Mathematics · 1981 · 44 citations · Full text

Maps on simple algebras preserving zero products. II. Lie algebras of linear type

W. J. Wong · Pacific Journal of Mathematics · 1981 · 42 citations · Full text