Some permanence results of properties of Banach spaces
Using some known lifting theorems we present three-space property type and permanence results; some of them seem to be new, whereas other are improvements of known facts.
Some possibilities in solving operator equations using non stationary iterative method
Some priori estimates about solutions to nonhomogeneous -harmonic equations.
Some problems arising from prediction theory and a theorem of Kolmogorov.
Some problems arising in connection with the theory of vector measures
Some problems concerning stability of fixed points
Some problems for measures on non-standard algebraic structures
Nell'ultimo ventennio tutta una serie di lavori è stata rivolta allo studio delle misure su strutture algebriche più generali delle algebre di Boole, come i poset e i reticoli ortomodulari, le effect algebras, le BCK-algebras. La teoria così ottenuta interessa l'analisi funzionale, il calcolo delle probabilità e la topologia, più recentemente la teoria delle decisioni. Si presentano alcuni risultati relativi a misure su strutture algebriche non-standard analizzando, in particolare, gli aspetti topologici...
Some problems of global analysis on asymptotically simple manifolds
Some problems of the theory of Sobolev spaces of infinite order and of nonlinear equations
Some problems on narrow operators on function spaces
It is known that if a rearrangement invariant (r.i.) space E on [0, 1] has an unconditional basis then every linear bounded operator on E is a sum of two narrow operators. On the other hand, for the classical space E = L 1[0, 1] having no unconditional basis the sum of two narrow operators is a narrow operator. We show that a Köthe space on [0, 1] having “lots” of nonnarrow operators that are sum of two narrow operators need not have an unconditional basis. However, we do not know if such an r.i....
Some problems on Suslin spaces and topological algebras
Some properties and applications of equicompact sets of operators
Let X and Y be Banach spaces. A subset M of (X,Y) (the vector space of all compact operators from X into Y endowed with the operator norm) is said to be equicompact if every bounded sequence (xₙ) in X has a subsequence such that is uniformly convergent for T ∈ M. We study the relationship between this concept and the notion of uniformly completely continuous set and give some applications. Among other results, we obtain a generalization of the classical Ascoli theorem and a compactness criterion...
Some Properties of a Regular Sequence in Hilbert Space.
Some Properties of Analytic Maps of Operators in J*-algebras.
Some properties of -convexity.
Some properties of Banach-valued sequence spaces .
Some properties of basic sequences in Banach spaces.
Some Properties of Compact Natural Sets in Several Complex Variables.
Some properties of composition operators on the Dirichlet space.
Some properties of continuous function spaces