Compatible and Incompatible Nonuniqueness Conditions for the Classical Cauchy Problem

Autor: Josef Diblík, Christine Nowak
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Abstract and Applied Analysis, Vol 2011 (2011)
Druh dokumentu: article
ISSN: 1085-3375
1687-0409
DOI: 10.1155/2011/743815
Popis: In the first part of this paper sufficient conditions for nonuniqueness of the classical Cauchy problem x˙=f(t,x), x(t0)=x0 are given. As the essential tool serves a method which estimates the “distance” between two solutions with an appropriate Lyapunov function and permits to show that under certain conditions the “distance” between two different solutions vanishes at the initial point. In the second part attention is paid to conditions that are obtained by a formal inversion of uniqueness theorems of Kamke-type but cannot guarantee nonuniqueness because they are incompatible.
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