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Ulam-Hyers-Rassias stability of semilinear differential equations with impulses

open access: yes, 2013
In this article, we present Ulam-Hyers-Rassias and Ulam-Hyers stability results for semilinear differential equations with impulses on a compact interval.
Jinrong Wang, Xuezhu Li
core  

Solution of the Ulam stability problem for quartic mappings

open access: yes, 1999
In 1940, S. M. Ulam proposed at the University of Wisconsin the problem: "Give conditions in order for a linear mapping near an approximately linear mapping to exist." In 1968, S. M.
Rassias, John Michael   +1 more
core  

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