Results 11 to 20 of about 617,829 (273)

A priori estimates for the complex Hessian equations [PDF]

open access: yesAnalysis & PDE, 2011
We prove some $L^{\infty}$ a priori estimates as well as existence and stability theorems for the weak solutions of the complex Hessian equations in domains of $C^n$ and on compact K\"ahler manifolds.
Błocki, Gårding, Kołodziej
core   +4 more sources

A priori estimates of solutions to nonlinear fractional Laplacian equation

open access: yesElectronic Research Archive, 2023
In this paper, we focus on the research of a priori estimates of several types of semi-linear fractional Laplacian equations with a critical Sobolev exponent.
Tao Zhang , Tingzhi Cheng
doaj   +1 more source

Existence results and a priori estimates for solutions of quasilinear problems with gradient terms [PDF]

open access: yesOpuscula Mathematica, 2019
In this paper we establish a priori estimates and then an existence theorem of positive solutions for a Dirichlet problem on a bounded smooth domain in \(\mathbb{R}^N\) with a nonlinearity involving gradient terms.
Roberta Filippucci, Chiara Lini
doaj   +1 more source

Variational Formulation and A Priori Estimates for the Galerkin Method for a Fractional Diffusion Equation

open access: yesTrends in Computational and Applied Mathematics, 2022
In this work we obtain a variational formulation and {\it a priori} estimates for approximate solutions of a problem involving fractional diffusion equations.
M. E. de S. Lima   +2 more
doaj   +1 more source

On a boundary value problem for a Boussinesq-type equation in a triangle

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
Earlier, we considered an initial-boundary value problem for a one-dimensional Boussinesq-type equation in a domain that is a trapezoid, in which the theorems on its unique weak solvability in Sobolev classes were established by the methods of the theory
M. T. Jenaliyev   +2 more
doaj   +1 more source

Compliance estimates for two-dimensionalproblems with Dirichlet region of prescribed length

open access: yesNetworks and Heterogeneous Media, 2012
In this paper we prove some lower bounds for the compliancefunctional, in terms of the $1$-dimensional Hausdorff measureof the Dirichlet region and the number of its connectedcomponents.
Paolo Tilli
doaj   +1 more source

A priori estimates of global solutions of superlinear parabolic systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We consider the parabolic system $ u_{t}-\Delta u = u^{r}v^{p}$, $v_{t}-\Delta v = u^{q}v^{s}$ in $\Omega\times(0,\infty)$, complemented by the homogeneous Dirichlet boundary conditions and the initial conditions $(u,v)(\cdot,0) = (u_{0},v_{0})$ in ...
Július Pačuta
doaj   +1 more source

A priori estimates for Donaldson's equation over compact Hermitian manifolds [PDF]

open access: yes, 2013
In this paper we prove a priori estimates for Donaldson's equation $\omega\wedge(\chi+\sqrt{-1}\partial\bar{\partial}\varphi)^{n-1}=e^{F}(\chi+\sqrt{-1}\partial\bar{\partial}\varphi)^{n}$ over a compact Hermitian manifold X of complex dimension n, where $
Li, Yi
core   +3 more sources

A priori estimates for fluid interface problems [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2008
AbstractWe consider the regularity of an interface between two incompressible and inviscid fluid flows in the presence of surface tension. We obtain local‐in‐time estimates on the interface in H(3/2)k + 1 and the velocity fields in H(3/2)k. These estimates are obtained using geometric considerations which show that the Kelvin‐Helmholtz instabilities ...
Shatah, Jalal, Zeng, Chongchun
openaire   +3 more sources

A regularity criterion of weak solutions to the 3D Boussinesq equations

open access: yesAIMS Mathematics, 2017
In this note, a regularity criterion of weaksolutions to the 3D-Boussinesq equations with respect to Serrin type condition under the framework of Besov space $\overset{.}{B}_{\infty ,\infty}^{r}$.
Ahmad Mohammed Alghamdi   +2 more
doaj   +1 more source

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