Zygfryd Kominek, a Mathematician, a Teacher, a Friend

Abstract

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Keywords

• steinhaus and piccard type theorems
• smítal’s lemma
• functional equations
• semilinear topology
• stability in the sense of hyers-ulam
• subquadratic functions
• jensen equation and inequality
• wright convexity
• hosszú equation
• cauchy equation
• separation theorems
• alienation
• 01a70
• 20a05
• 26a99
• 39b05
• 39b82
• 39c05
• 46a05