Results 101 to 110 of about 4,758,376 (292)
Open Mathematics, 2019 Let E be a generalized Cesáro sequence space defined by weighted means and by using s-numbers of operators from a Banach space X into a Banach space Y.
Bakery Awad A., Mohammed Mustafa M.
doaj +1 more source
Adaptive Estimation for Weakly Dependent Functional Times Series
Journal of Time Series Analysis, EarlyView.ABSTRACT We propose adaptive mean and autocovariance function estimators for stationary functional time series under 𝕃p−m‐approximability assumptions. These estimators are designed to adapt to the regularity of the curves and to accommodate both sparse and dense data designs.
Hassan Maissoro +2 more
wiley +1 more source
Existence and regularity for integro‐differential free transmission problem
Bulletin of the London Mathematical Society, EarlyView.Abstract We study an integro‐differential free transmission problem associated with the Bellman–Isaacs‐type operator that is solution‐dependent. The existence of a viscosity solution is proved by constructing solutions of suitable auxiliary problems for such a nonlocal problem.
Sun‐Sig Byun, Seunghyun Kim
wiley +1 more source
ITM Web of Conferences, 2018 In this paper, we introduce the concept of pentagonal cone b-metric space over Banach algebras as a generalization of cone metric space over Banach algebras and many of its generalizations. Furthermore, we prove Banach fixed point theorem in such a space.
Auwalu Abba
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A proof that every Banach space is subreflexive
, 1961 A real or complex normed space is subreflexive if those f unctionals which attain their supremum on the unit sphere S of E are normdense in E*, i.e., if for each ƒ in £ * and each e > 0 there exist g in E* and x in S such that \g(x)\ =\\g\\ and ||/—g||
E. Bishop, R. Phelps
semanticscholar +1 more source
Graphical models for topological groups: A case study on countable Stone spaces
Bulletin of the London Mathematical Society, EarlyView.Abstract By analogy with the Cayley graph of a group with respect to a finite generating set or the Cayley–Abels graph of a totally disconnected, locally compact group, we detail countable connected graphs associated to Polish groups that we term Cayley–Abels–Rosendal graphs.
Beth Branman +3 more
wiley +1 more source
Weak convergence of an iterative sequence for accretive operators in Banach spaces
Fixed Point Theory and Applications, 2006 Let C be a nonempty closed convex subset of a smooth Banach space E and let A be an accretive operator of C into E. We first introduce the problem of finding a point u∈C such that 〈Au,J(v−u)〉≥0 for all v∈C ...
Wataru Takahashi +2 more
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On the convergence of sums of independent Banach space valued random variables
, 1968 The purpose of this paper is to discuss the convergence of sums of independent random variables with values in a separable real Banach space and to apply it to some problems on the convergence of the sample paths of stochastic processes.
Kiyosi Itô, M. Nisio
semanticscholar +1 more source
Property (T) for groups acting on affine buildings
Bulletin of the London Mathematical Society, EarlyView.Abstract We prove that a group acting geometrically on a thick affine building has property (T). A more general criterion for property (T) is given for groups acting on partite complexes.
Izhar Oppenheim
wiley +1 more source
Extreme contractions on finite-dimensional polygonal Banach spaces
, 2019 We explore extreme contractions between finite-dimensional polygonal Banach spaces, from the point of view of attainment of norm of a linear operator. We prove that if $ X $ is an $ n- $dimensional polygonal Banach space and $ Y $ is any Banach space and
Paul, Kallol +2 more
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