Zobrazeno 1 - 10
of 388
pro vyhledávání: '"Ragusa, M. A."'
Publikováno v:
Fract. Calc. Appl. Anal. 27:2 (2024), 725-756
We obtain critical embeddings and the concentration-compactness principle for the anisotropic variable exponent Sobolev spaces. As an application of these results,we confirm the existence of and find infinitely many nontrivial solutions for a class o
Externí odkaz:
http://arxiv.org/abs/2402.15133
In this paper, we obtain the necessary and sufficient conditions for the weak/strong boundedness of the Calder\'{o}n-Zygmund operators in generalized weighted Orlicz-Morrey spaces. We also study the boundedness of the commutators of Calder\'{o}n-Zygm
Externí odkaz:
http://arxiv.org/abs/2204.13898
We are concerned with the study of the existence and multiplicity of solutions for Dirichlet boundary value problems, involving the $( p( m ), \, q( m ) )-$ equation and the nonlinearity is superlinear but does not fulfil the Ambrosetti-Rabinowitz co
Externí odkaz:
http://arxiv.org/abs/2204.09506
Autor:
Ragusa, M. A., Tachikawa, A.
Let $\Omega \subset {R}^n,$ $n \geq 3,$ be a bounded open set, $x=(x_1,x_2,\ldots,x_n)$ a generic point which belongs to $\Omega,$ $u \colon \Omega \to {R}^N ,$ $N>1,$ and $ Du=(D_\alpha u^i)$, $D_\alpha = \partial/\partial x_\alpha, $ $\alpha =1,\ld
Externí odkaz:
http://arxiv.org/abs/2006.07636
Autor:
Abbas, M. I., Ragusa, M. A.
In this paper we discuss the solvability of Langevin equations with two Hadamard fractional derivatives. The method of this discussion is to study the solutions of the equivalent Volterra integral equation in terms of Mittag- Leffler functions. The e
Externí odkaz:
http://arxiv.org/abs/2006.07608
Autor:
Ragusa, M. A., Wu, F.
In this paper, we consider the regularity criterion for 3D incompressible Navier-Stokes equations in terms of one directional derivative of the velocity in anisotropic Lebesgue spaces. More precisely, it is proved that u becomes a regular solution if
Externí odkaz:
http://arxiv.org/abs/2006.05785
High-order numerical method for two-dimensional Riesz space fractional advection-dispersion equation
In this paper, by combining of fractional centered difference approach with alternating direction implicit method, we introduce a mixed difference method for solving two-dimensional Riesz space fractional advection-dispersion equation. The proposed m
Externí odkaz:
http://arxiv.org/abs/2006.04111
Autor:
Ragusa, M. A., Razani, A.
A system of quasilinear elliptic equations on an unbounded domain is considered. The existence of a sequence of radially symmetric weak solutions is proved via variational methods.
Comment: arXiv admin note: substantial text overlap with arXiv:2
Comment: arXiv admin note: substantial text overlap with arXiv:2
Externí odkaz:
http://arxiv.org/abs/2006.05262
The main issue addressed in this paper concerns an extension of a result by Z. Zhang who proved, in the context of the homogeneous Besov space $\dot{B}_{\infty ,\infty }^{-1}(\mathbb{R}% ^{3})$, that, if the solution of the Boussinesq equation (\ref%
Externí odkaz:
http://arxiv.org/abs/2005.10870
Nowadays, particulate matter, especially that with small dimension as PM10, PM2.5 and PM1, is the air quality indicator most commonly associated with a number of adverse health effects. In this paper it is analyzed the impact that a natural event, su
Externí odkaz:
http://arxiv.org/abs/2005.06192