Results 11 to 20 of about 755,891 (241)
Bilinear Multipliers on Banach Function Spaces
Journal of Function Spaces, 2019 Let X1,X2,X3 be Banach spaces of measurable functions in L0(R) and let m(ξ,η) be a locally integrable function in R2. We say that m∈BM(X1,X2,X3)(R) if Bm(f,g)(x)=∫R∫Rf^(ξ)g^(η)m(ξ,η)e2πidξdη, defined for f and g with compactly supported Fourier transform,
Oscar Blasco
doaj +3 more sources
Banach function spaces done right [PDF]
Indagationes Mathematicae, 2023 19 pages, to appear in Indagationes ...
E. Lorist, Z. Nieraeth
semanticscholar +5 more sources
Constructive utility functions on Banach spaces [PDF]
Journal of Mathematical Analysis and Applications, 2009 Let \(X\) be a topological space and let ``\(\preceq\)'' be a preorder on \(X\) (a complete, reflexive, transitive binary relation). We say that ``\(\preceq\)'' is continuous if, for all \(x\in X\), the upper section \(U(x):=\{y\in X \,;\, y\succeq x\}\) and the lower section \(L(x):=\{y\in X \,;\, y\preceq x\}\) are closed subsets of \(X\).
Alcantud, Jose C. R. +1 more
openaire +2 more sources
Banach Lattice Structures and Concavifications in Banach Spaces
Mathematics, 2020 Let ( Ω , Σ , μ ) be a finite measure space and consider a Banach function space Y ( μ ) . We say that a Banach space E is representable by Y ( μ ) if there is a continuous bijection I : Y ( μ ...
Lucia Agud +3 more
doaj +1 more source
On Pentagonal Controlled Fuzzy Metric Spaces with an Application to Dynamic Market Equilibrium
Journal of Function Spaces, 2022 In this manuscript, we coined pentagonal controlled fuzzy metric spaces and fuzzy controlled hexagonal metric space as generalizations of fuzzy triple controlled metric spaces and fuzzy extended hexagonal b-metric spaces.
Aftab Hussain +3 more
doaj +1 more source
Żuk’s criterion for Banach spaces and random groups
Forum of Mathematics, Sigma, 2023 We prove a Banach version of Żuk’s criterion for groups acting on partite (i.e., colorable) simplicial complexes. Using this new criterion, we derive a new fixed point theorem for random groups in the Gromov density model with respect to several classes ...
Izhar Oppenheim
doaj +1 more source
On the Properties of Quasi-Banach Function Spaces [PDF]
Journal of Geometric Analysis, 2020 In this paper we explore some basic properties of quasi-Banach function spaces which are important in applications. Namely, we show that they possess a generalised version of Riesz–Fischer property, that embeddings between them are always continuous, and
A. Nekvinda, Dalimil Peša
semanticscholar +1 more source
Symmetric polynomials on Banach spaces
Karpatsʹkì Matematičnì Publìkacìï, 2013 A survey of general results about symmetric polynomials on Banach spaces and rearrangement-invariant function spaces and some new results in this area are given. Some applications to Banach algebras are represented.
I. V. Chernega
doaj +1 more source
Operating Functions for Banach Function Spaces
Rocky Mountain Journal of Mathematics, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Briem, Eggert, Jarosz, Krzysztof
openaire +2 more sources
A peculiar Banach function space [PDF]
Proceedings of the American Mathematical Society, 1965 Let (S, E, ,u) be a a-finite measure space. A length function on (S, E, ,u) is a non-negative, extended-real-valued function X on the set P=P(S, E, ,u) of non-negative, real-valued, 2-measurable functions on S such that (1) X(f) = Of = O a.e. (u); (2) X(f+g) ? (f) 1f (f); (5) E C Y, ,ut (E) 0DfEfdA -?< aX (f) for all f CP.
openaire +2 more sources