Results 91 to 100 of about 31,296 (239)

k-β and k-nearly uniformly convex Banach spaces

open access: yesJournal of Mathematical Analysis and Applications, 1991
Some new geometrical uniform properties of a Banach space are introduced. The exact relationships with the old ones (such as uniform rotundity, near uniform convexity, etc.) are also discussed.
Denka Kutzarova, Denka Kutzarova
openaire   +2 more sources

Об одной принципиальной схеме вычисления обобщенной проекции [PDF]

open access: yes, 2013
Изучена абстрактная схема вычисления обобщенной проекции Альбера на замкнутое выпуклое подмножество равномерно выпуклого и равномерно гладкого банахова пространства.
Семенов, В.В.
core  

Smoothed Moreau‐Yosida Tensor‐Train Approximation of State‐Constrained Optimization Problems Under Uncertainty

open access: yesNumerical Linear Algebra with Applications, Volume 32, Issue 4, August 2025.
ABSTRACT We propose an algorithm to solve optimization problems constrained by ordinary or partial differential equations under uncertainty, with additional almost sure inequality constraints on the state variable. To alleviate the computational burden of high‐dimensional random variables, we approximate all random fields by the tensor‐train (TT ...
Harbir Antil   +2 more
wiley   +1 more source

Weak Convergence of the Projection Type Ishikawa Iteration Scheme for Two Asymptotically Nonexpansive Nonself-Mappings

open access: yesAbstract and Applied Analysis, 2011
We study weak convergence of the projection type Ishikawa iteration scheme for two asymptotically nonexpansive nonself-mappings in a real uniformly convex Banach space E which has a Fréchet differentiable norm or its dual E* has the Kadec-Klee property ...
Tanakit Thianwan
doaj   +1 more source

Pressure‐driven flow in thin straight tubes of non‐uniform cross‐section

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 105, Issue 8, August 2025.
Abstract We analyze stationary Stokes flow of a Navier–Stokes fluid in a thin tube with a variable cross‐section. The objective is to derive a simplified model by examining the asymptotic behavior as the tube's thickness approaches zero. The flow is driven by a pressure gradient between the inlet and outlet, which is modeled by prescribing the normal ...
Eisten Bomba   +3 more
wiley   +1 more source

A New Iterative Scheme of Modified Mann Iteration in Banach Space

open access: yesAbstract and Applied Analysis, 2014
We introduce the modified iterations of Mann's type for nonexpansive mappings and asymptotically nonexpansive mappings to have the strong convergence in a uniformly convex Banach space.
Jinzuo Chen, Dingping Wu, Caifen Zhang
doaj   +1 more source

Local spectral theory for subordinated operators: The Cesàro operator and beyond

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 2, August 2025.
Abstract We study local spectral properties for subordinated operators arising from C0$C_0$‐semigroups. Specifically, if T=(Tt)t⩾0$\mathcal {T}=(T_t)_{t\geqslant 0}$ is a C0$C_0$‐semigroup acting boundedly on a complex Banach space and Hν=∫0∞Ttdν(t)$$\begin{equation*} \mathcal {H}_\nu = \int _{0}^{\infty } T_t\; d\nu (t) \end{equation*}$$is the ...
Eva A. Gallardo‐Gutiérrez   +1 more
wiley   +1 more source

Strong Convergence to a Solution of a Variational Inequality Problem in Banach Spaces

open access: yesJournal of Applied Mathematics, 2014
We consider the variational inequality problem for a family of operators of a nonempty closed convex subset of a 2-uniformly convex Banach space with a uniformly Gâteaux differentiable norm, into its dual space.
Yasunori Kimura, Kazuhide Nakajo
doaj   +1 more source

Continuity of metric projections in uniformly convex and uniformly smooth Banach spaces

open access: yesJournal of Approximation Theory, 1983
The continuity of the metric projection onto an approximately compact set in a uniformly convex and uniformly smooth Banach space is investigated. The concept of directional radius of curvature at a point is defined: this allows the author to obtain an explicit modulus of continuity for the metric projection onto some sets (which are not necessarily ...
openaire   +2 more sources

Self‐similar instability and forced nonuniqueness: An application to the 2D euler equations

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 2, August 2025.
Abstract Building on an approach introduced by Golovkin in the ’60s, we show that nonuniqueness in some forced partial differential equations is a direct consequence of the existence of a self‐similar linearly unstable eigenvalue: the key point is a clever choice of the forcing term removing complicated nonlinear interactions.
Michele Dolce, Giulia Mescolini
wiley   +1 more source

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