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Sobolev trace inequalities on nonhomogeneous fractional Sobolev spaces are established.

Analysis of PDEs · Mathematics 2019-09-10 Hee Chul Pak

In this paper, we study the Cauchy problem for the 3D energy-critical inhomogeneous nonlinear Schr\"odinger equation(INLS) $$i\partial_{t}u+\Delta u=\pm|x|^{-\alpha}|u|^{4-2\alpha}u$$ with strong singularity $3/2\leq \alpha<2$. The…

Analysis of PDEs · Mathematics 2025-01-07 Yoonjung Lee

This paper is mainly concerned with the Cauchy problem for a generalized Camassa-Holm equation with analytic initial data. The analyticity of its solutions is proved in both variables, globally in space and locally in time. Then, we present…

Analysis of PDEs · Mathematics 2015-11-10 Xi Tu , Zhaoyang Yin

This paper analyses the effects of small injection/suction Reynolds number, Hartmann number, permeability parameter and wave number on a viscous incompressilbe electrically conduction fluid flow in a parallel porous channel. The plates of…

Fluid Dynamics · Physics 2017-09-25 L. A. Hinvi , A. V. Monwanou , J. B. Chabi Orou

The evolution of two isothermal, incompressible, immiscible fluids in a bounded domain is governed by Cahn-Hilliard-Navier-Stokes equations (CHNS System). In this work, we study the well-posedness results for the CHNS system with…

Analysis of PDEs · Mathematics 2025-10-28 Manika Bag , Tania Biswas , Sheetal Dharmatti

We are concerned with the vortex sheet solutions for the inviscid two-phase flow in two dimensions. In particular, the nonlinear stability and existence of compressible vortex sheet solutions under small perturbations are established by…

Analysis of PDEs · Mathematics 2020-01-03 Feimin Huang , Dehua Wang , Difan Yuan

In this paper we consider the Euler-Poisson system (describing a plasma made of ions with a negligible ion temperature) on the Sobolev spaces $H^s(\R^3)$, $s > 5/2$. Using a geometric approach we show that for any time $T > 0$ the…

Analysis of PDEs · Mathematics 2018-06-14 Hasan Inci

The Hall effects on Casson fluid flow along a vertical plate has been investigated numerically. The governing equations have been derived from Navier-Stokes' equation and boundary layer approximation has been employed. By using usual…

Fluid Dynamics · Physics 2021-03-26 Mst. Sonia Akter , Mohammad Rafiqul Islam , Md. Tusher Mollah , Md. Mahmud Alam

We show that a steady-state solution ${\bf U}$ to the system of equations of a Navier-Stokes flow past a rotating body is nonlinearly unstable if the associated linear operator $\cal L$ has a part of the spectrum in the half-plane…

Analysis of PDEs · Mathematics 2020-01-28 Giovanni P. Galdi Jiří Neustupa

We study the invariant distributions for the horocycle map on $\Gamma\backslash SL(2, \mathbb{R})$ and prove Sobolev estimates for the cohomological equation of the horocycle map. As an application, we obtain an estimate for the rate of…

Dynamical Systems · Mathematics 2019-02-20 James Tanis

We adopt the Koch-Tataru theory for the Navier-Stokes equations, based on Carleson measure estimates, to develop a scaling-critical low-regularity framework for half-harmonic map heat flows. This nonlocal variant of the harmonic map heat…

Analysis of PDEs · Mathematics 2025-09-19 Kilian Koch , Christof Melcher

We prove that, for first-order, fully nonlinear systems of partial differential equations, under an hypothesis of ellipticity for the principal symbol, the Cauchy problem has no solution within a range of Sobolev indices depending on the…

Analysis of PDEs · Mathematics 2020-12-16 Karim Ndoumajoud , Benjamin Texier

The nonrelativistic limit of a semilinear field equation is considered in a uniform and isotropic space.The scale-function of the space is constructed based on the Einstein equation.The Cauchy problem of the limit-equation is considered,and…

Mathematical Physics · Physics 2020-12-23 Makoto Nakamura

In this paper, we study the nonlinear dynamics of an axisymmetric disturbance to the laminar state in non-rotating Poiseuille pipe flows. In particular, we show that the associated Navier-Stokes equations can be reduced to a set of coupled…

Fluid Dynamics · Physics 2019-12-16 Francesco Fedele , Denys Dutykh

We prove the non-uniform continuity of the data-to-solution map of the incompressible Euler equations in Besov spaces $B_{p,q}^{s}$, where the parameters $p, q$ and $s$ considered here are such that the local existence and uniqueness result…

Analysis of PDEs · Mathematics 2019-11-12 Jose Pastrana

In this paper, we study the asymptotic behaviors of solutions to the inhomogeneous Navier-Stokes-Vlasov system in $\mathbb{R}^{3}\times\mathbb{R}^{3}$, where the initial fluid density is allowed to vanish. We establish the uniform bound of…

Analysis of PDEs · Mathematics 2025-05-12 Hai-Liang Li , Ling-Yun Shou , Yue Zhang

In this paper we show that the floow map of the Benjamin-Ono equation on the line is weakly continuous in L2(R), using "local smoothing" estimates. L2(R) is believed to be a borderline space for the local well-posedness theory of this…

Analysis of PDEs · Mathematics 2009-10-08 Shangbin Cui , Carlos E. Kenig

We consider a periodic higher-order nonlinear Schr\"odinger equation with the nonlinearity $u^k \partial_x u$, where $k$ is a natural number. We prove the norm inflation in a subspace of the Sobolev space $H^s(\mathbb{T})$ for any $s \in…

Analysis of PDEs · Mathematics 2025-08-20 Toshiki Kondo , Mamoru Okamoto

This article concerns the time growth of Sobolev norms of classical solutions to the 3D quasi-linear wave equations with the null condition.

Analysis of PDEs · Mathematics 2015-10-13 Fan Wang

We study isentropic fluid flows of gases of the Forchheimer-type in heterogeneous porous media. The governing equation is a doubly nonlinear parabolic equation with coefficients depending on the spatial variables. Its solutions are subject…

Analysis of PDEs · Mathematics 2025-05-20 Emine Celik , Luan Hoang , Thinh Kieu