Normal solvability, solvability and fixed-point theorems
Approximate determination of eigenvalues and eigenvectors of selfadjoint operators
Some properties of monotone type multivalued operators in Banach spaces
Some properties of monotone type multivalued operators including accretive operators and the duality mapping are studied in connection with the structure of Banach spaces.
Новые методы решения линейных функциональных уравнений
Užití Galerkinovy metody v úlohách o stabilitě proudění vazké tekutiny
Přibližné řešení soustavy funkcionálních rovnic Galerkinovou metodou
On determination of eigenvalues and eigenvectors of selfadjoint operators
Two simple methods for approximate determination of eigenvalues and eigenvectors of linear self-adjoint operators are considered in the following two cases: (i) lower-upper bound of the spectrum of is an isolated point of ; (ii) (not necessarily an isolated point of with finite multiplicity) is an eigenvalue of .
On the differentiability of mappings and convex functionals: A correction
Open mapping theorem and solution of nonlinear equations in linear normed spaces (Preliminary communication)
The solvability of non-linear integral equations
A note on uniform boundedness principle for nonlinear operators
Determination of eigenvalues and eigenfunctions of bounded self-adjoint operators (Preliminary communication)
On the continuity properties of nonlinear operators and functionals
On the solution of homogeneous functional equations in Hilbert space
On convergence of the iterative methods
Remarks on nonlinear functionals
Some mapping theorems and solvability of nonlinear equations in Banach spaces (Preliminary communication)
Note on the paper of I. Fenyö: On the solution of non-linear equations in Banach space
Remark to the solution of non-linear functional equations in Banach spaces
Contribution to the solution of non-linear equations
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