Results 41 to 50 of about 33,958 (245)

On the 3D steady flow of a second grade fluid past an obstacle

open access: yes, 2010
We study steady flow of a second grade fluid past an obstacle in three space dimensions. We prove existence of solution in weighted Lebesgue spaces with anisotropic weights and thus existence of the wake region behind the obstacle.
A. Novotný   +11 more
core   +1 more source

Simultaneous and converse approximation theorems in weighted Lebesgue spaces [PDF]

open access: yesMathematical Inequalities & Applications, 2011
In this paper we deal with the simultaneous and converse approximation by trigonometric polynomials of the functions in the Lebesgue spaces with weights satisfying so called Muckenhoupt’s Ap condition. Mathematics subject classification (2010): 41A10, 42A10.
Yıldırır, Yunus Emre   +1 more
openaire   +3 more sources

Chaos for Cosine Operator Functions on Groups

open access: yesAbstract and Applied Analysis, 2014
Let 1 ...
Chung-Chuan Chen
doaj   +1 more source

Bilinear dispersive estimates via space-time resonances, part II: dimensions 2 and 3

open access: yes, 2013
Consider a bilinear interaction between two linear dispersive waves with a generic resonant structure (roughly speaking, space and time resonant sets intersect transversally).
Bernicot, Frederic, Germain, Pierre
core   +1 more source

Improved Inverse Theorems in Weighted Lebesgue and Smirnov Spaces

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Güven, Ali, İsrafilov, Daniyal M.
openaire   +4 more sources

A generalized Dunkl type modifications of Phillips operators

open access: yesJournal of Inequalities and Applications, 2018
The main purpose of this present article is to discuss the convergence of Lebesgue measurable functions by providing a Dunkl generalization of Szász type operators known as Phillips operators. To achieve the results of a better way of uniform convergence
M. Nasiruzzaman, Nadeem Rao
doaj   +1 more source

On the Mean‐Field Limit of Consensus‐Based Methods

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Consensus‐based optimization (CBO) employs a swarm of particles evolving as a system of stochastic differential equations (SDEs). Recently, it has been adapted to yield a derivative free sampling method referred to as consensus‐based sampling (CBS). In this paper, we investigate the “mean‐field limit” of a class of consensus methods, including
Marvin Koß, Simon Weissmann, Jakob Zech
wiley   +1 more source

A note on linear compositions of the Mellin convolution operators in the weighted Mellin-Lebesgue spaces

open access: yesDemonstratio Mathematica
In this article, we express a numerical form of the convergence using the suitable modulus of smoothness for linear compositions of the Mellin convolution operators.
Ozsarac Firat
doaj   +1 more source

Interaction of Dirac δ$$ \delta $$‐Waves in the Inviscid Levine and Sleeman Chemotaxis Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This article investigates interactions of δ$$ \delta $$‐shock waves in the inviscid Levine and Sleeman chemotaxis model ut−λ(uv)x=0$$ {u}_t-\lambda {(uv)}_x=0 $$, vt−ux=0$$ {v}_t-{u}_x=0 $$. The analysis employs a distributional product and a solution concept that extends the classical solution concept.
Adelino Paiva
wiley   +1 more source

Shape Derivatives of the Eigenvalues of the De Rham Complex for Lipschitz Deformations and Variable Coefficients: Part I

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We study eigenvalue problems for the de Rham complex on varying three‐dimensional domains. Our analysis includes the Helmholtz equation as well as the Maxwell system with mixed boundary conditions and non‐constant coefficients. We provide Hadamard‐type formulas for the shape derivatives under weak regularity assumptions on the domain and its ...
Pier Domenico Lamberti   +2 more
wiley   +1 more source

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