Relation between best approximant and orthogonality in -classes.
Relation between the boundary point spectrum of a generator and of its adjoint.
In this paper we get some relations between the boundary point spectrum of the generator A of a C0-semigroup and the generator A* of the dual semigroup. This relations combined with the results due to Lyubich-Phong and Arendt-Batty, yield stability results on positive C0-semigroups.
Relations between limit-point and Dirichlet properties of second-order difference operators.
Relations Between Summing Norms of Mappings on ln... .
Relative boundedness and compactness theory for second-order differential operators.
Relative regularity and Riesz operators
Remark on an operator inequality
Remark on sums of complemented subspaces
Remark on the Fredholm alternative for nonlinear operators with application to nonlinear integral equations of generalized Hammerstein type
Remarks on a Paper of Bachelis and Gilbert.
Remarks on compact operators between interpolation spaces associated to polygons.
This note deals with interpolation methods defined by means of polygons. We show necessary and sufficient conditions for compactness of operators acting from a J-space into a K-space.
Remarks on extreme eigenvalues of Toeplitz matrices.
Remarks on rich subspaces of Banach spaces
We investigate rich subspaces of L₁ and deduce an interpolation property of Sidon sets. We also present examples of rich separable subspaces of nonseparable Banach spaces and we study the Daugavet property of tensor products.
Remarks on Spectra of Operator Root.
Remarks on tensor products and their applications in quantum theory I. General considerations
Remarks on tensor proucts and their applications in quantum theory - II. Spectral properties
Remarks on the spectrum of bounded and normal operators on Hilbert spaces.
Remarques sur les propriété de dualité et d'interpolation des idéaux de R. Schatten
Rennie's generalization of Kantorovich's inequality in a Hilbert space
Representation and duality of multiplication operators on archimedean Riesz spaces