The Following definitions are from the book Functional Analysis, Sobolev Spaces and Partial Differential Equations by Haim Brezis. Aside from the basic definitions, these definitions have tiny size so there will be no attached files associated with the following contents, however, one may find the pdf version by clicking the address short after this intro section.
Tianyu Zhang
Convex(of functions)
Definition

Properties

Reference
Functional Analysis, Sobolev Spaces and Partial Differential Equations, Haim Brezis, Chapter I
Related Topics
- Definitions
- Theorems/Corollary/Propositions/Lemmas