On a class of Toeplitz + Hankel operators.
On a class of unsolvable operators
On a class of weighted function spaces and related pseudodifferential operators
On a class of weighted Sobolev spaces
On A Common Fixed Point Theorem Of A Greguš Type
On a completion of prehilbertian spaces.
On a -parameter ergodic theorem for continuous semigroups of operators satisfying norm conditions
A continuous multiparameter version of Chacon's vector valued ergodic theorem is proved.
On a decomposition for pairs of commuting contractions
A new decomposition of a pair of commuting, but not necessarily doubly commuting contractions is proposed. In the case of power partial isometries a more detailed decomposition is given.
On a Five-Diagonal Jacobi Matrices and Orthogonal Polynomials on Rays in the Complex Plane
∗ Partially supported by Grant MM-428/94 of MESC.Systems of orthogonal polynomials on the real line play an important role in the theory of special functions [1]. They find applications in numerous problems of mathematical physics and classical analysis. It is known, that classical polynomials have a number of properties, which uniquely define them.
On a fixed point theorem and applications to a two point boundary value problem
On a fixed point theorem for weakly sequentially continuous mapping
Let E be a metrizable locally convex topological vector space x ∈ E, and let D be a closed convex subset of E such that x ∈ D. In this paper we prove that the weakly sequentially continuous mapping F: D ∪ D which satisfies V̅ = c̅o̅n̅v̅({x} ∪ F(V))⇒ V is relatively weakly compact, has a fixed point. Employing the above results we prove the existence theorem for the Cauchy problem x'(t) = f(t,x(t)), x(0) = x₀. As compared with the previous...
On a fixed point theorem of Greguš.
On a fixed point theorem of Krasnoselskii and triangle contractive operators
On a fixed point theorem of Krasnosel'skii type and application to integral equations.
On a fixed point theorem of Krasnoselskii-Schaefer type.
On a fixed point theorem of Pathak.
On a fixed-point theorem of Cellina
In questa nota mostriamo come un teorema di esistenza per funzionali lineari porti un nuovo teorema di punto fisso che generalizza un teorema di punto fisso di Cellina.
On a Fixed-Point Theorem on Locally Convex Linear Topological Spaces.
On a formula for the jumps in the semi-Fredholm domain.
In this paper we prove some properties of the lower s-numbers and derive asymptotic formulae for the jumps in the semi-Fredholm domain of a bounded linear operator on a Banach space.
On a formula of le Merdy for the complex interpolation of tensor products.