Gutlyanskiĭ, V.Ya.; Nesmelova, O.V.
(Доповіді НАН України, 2020)
We present a new approach to the study of semilinear equations of the form div[A(z)▽u]=f(u), the diffusion
term of which is the divergence uniform elliptic operator with measurable matrix functions A(z), whereas its ...