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math.AP2020
Invariance and Strict Invariance for Nonlinear Evolution Problems with Applications
Aleksander Ćwiszewski, Grzegorz Gabor, Wojciech Kryszewski
Sufficient conditions for the invariance of evolution problems governed by perturbations of (possibly nonlinear) -accretive operators are provided. The conditions for the invari…
math.CA2020★ 2 cited
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces
Grzegorz Gabor, Jan Tomeček
Dirichlet problem in an -dimensional billiard space is investigated. In particular, the system of ODEs together with Dirichlet boundary conditions $x(0)…