Bifurcation for a Class of Indefinite Elliptic Systems by Comparison Theory for the Spectral Flow via an Index Theorem

We consider families of strongly indefinite systems of elliptic PDE and investigate bifurcation from a trivial branch of solutions by using the spectral flow. The novelty in our approach is a refined way to apply a comparison principle which is based on an index theorem for a certain class of Fredho...

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Vydané v:	Nonlinear differential equations and applications Ročník 32; číslo 6; s. 116
Hlavní autori:	Janczewska, Joanna, Möckel, Melanie, Waterstraat, Nils
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Heidelberg Springer Nature B.V 01.11.2025
Predmet:	Bifurcations Eigenvalues Elliptic differential equations Hilbert space Parabolic differential equations Partial differential equations Theorems
ISSN:	1021-9722, 1420-9004
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