Results 21 to 30 of about 166,499 (273)

Frequency decay for Navier-Stokes stationary solutions [PDF]

open access: yes, 2017
We consider stationary Navier-Stokes equations in R 3 with a regular external force and we prove exponential frequency decay of the solutions. Moreover, if the external force is small enough, we give a pointwise exponential frequency decay for such ...
Chamorro, Diego   +2 more
core   +4 more sources

Pointwise completeness and pointwise degeneracy of positive fractional descriptor continuous-time linear systems with regular pencils

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
Pointwise completeness and pointwise degeneracy of positive fractional descriptor continuous-time linear systems with regular pencils are addressed.
Kaczorek Tadeusz
doaj   +1 more source

Pointwise completeness and pointwise degeneracy of fractional standard and descriptor linear continuous-time systems with different fractional orders

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2020
Descriptor and standard linear continuous-time systems with different fractional orders are investigated. Descriptor systems are analyzed making use of the Drazin matrix inverse.
Kaczorek Tadeusz, Sajewski Łukasz
doaj   +1 more source

TempestExtremes: a framework for scale-insensitive pointwise feature tracking on unstructured grids [PDF]

open access: yesGeoscientific Model Development, 2017
This paper describes a new open-source software framework for automated pointwise feature tracking that is applicable to a wide array of climate datasets using either structured or unstructured grids.
P. A. Ullrich, C. M. Zarzycki
doaj   +1 more source

Pointwise ergodic theorems [PDF]

open access: yesTransactions of the American Mathematical Society, 1966
Introduction. The purpose of this paper is to extend various known results in operator ergodic theory to give a direct approach to pointwise ergodic theorems. The main step in this approach is a maximal ergodic theorem (Theorem 1), which is a generalization of the result given in [1]. A corollary (Theorem 2) of this theorem is Chacon's ergodic theorem [
openaire   +1 more source

Pointwise lineability in sequence spaces [PDF]

open access: yesIndagationes Mathematicae, 2021
We prove that several results of lineability/spaceability in the framework of sequence spaces are valid in a stricter sense.
Daniel Pellegrino, Anselmo Raposo
openaire   +2 more sources

Existence ofixed points for pointwise eventually asymptotically nonexpansive mappings

open access: yesApplied General Topology, 2019
Kirk introduced the notion of pointwise eventually asymptotically non-expansive mappings and proved that uniformly convex Banach spaces have the fixed point property for pointwise eventually asymptotically non expansive maps.
M. Radhakrishnan, S. Rajesh
doaj   +1 more source

Warped Product Submanifolds in Locally Golden Riemannian Manifolds with a Slant Factor

open access: yesMathematics, 2021
In the present paper, we study some properties of warped product pointwise semi-slant and hemi-slant submanifolds in Golden Riemannian manifolds, and we construct examples in Euclidean spaces.
Cristina E. Hretcanu, Adara M. Blaga
doaj   +1 more source

On Asymptotic Pointwise Contractions in Modular Metric Spaces

open access: yesAbstract and Applied Analysis, 2013
In this paper we study and prove some new fixed points theorems for pointwise and asymptotic pointwise contraction mappings in modular metric spaces.
Afrah A. N. Abdou
doaj   +1 more source

Topology of the isometry group of the Urysohn space

open access: yes, 2009
Using classical results of infinite-dimensional geometry, we show that the isometry group of the Urysohn space, endowed with its usual Polish group topology, is homeomorphic to the separable Hilbert space. The proof is basedon a lemma about extensions of
Melleray, Julien
core   +4 more sources

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