Nontrivial solutions of inverse discrete problems with sign-changing nonlinearities
نویسندگان
چکیده
منابع مشابه
Positive solutions of discrete Neumann boundary value problems with sign-changing nonlinearities
R + →R is a sign-changing function. In recent years, positive solutions of boundary value problems for difference equations have been widely studied. See [–] and the references therein. However, little work has been done that has referred to the existence of positive solutions for discrete boundary value problems with sign-changing nonlinearities (see []). Usually, in order to obtain posit...
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IN×N is theN×N identity matrix, q(t) ∈ L(R;R) is T-periodic and satisfies ∫ T q(t)dt = , A(t) = [aij(t)] is aT-periodic symmetricN×N matrix-valued functionwith aij ∈ L∞(R;R) (∀i, j = , , . . . ,N ), B = [bij] is an antisymmetric N × N constant matrix, u = u(t) ∈ C(R,RN ), H(t,u) ∈ C(R × RN ,R) is T-periodic and Hu(t,u) denotes its gradient with respect to the u variable. In fact, there ...
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ژورنال
عنوان ژورنال: Advances in Difference Equations
سال: 2019
ISSN: 1687-1847
DOI: 10.1186/s13662-019-2383-y