Results 11 to 20 of about 618,259 (179)

A priori estimates for complex Hessian equations [PDF]

open access: yesAnalysis & PDE, 2014
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 hler manifolds. We also show optimal $L^p$ integrability for m-subharmonic functions with compact singularities, thus partially confirming a conjecture of Blocki. Finally
Dinew, Sławomir, Kołodziej, Sławomir
openaire   +5 more sources

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

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 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 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 and a posteriori $W^{1,\infty}$ error analysis of a QC method for complex lattices [PDF]

open access: yes, 2012
In this paper we prove a priori and a posteriori error estimates for a multiscale numerical method for computing equilibria of multilattices under an external force. The error estimates are derived in a $W^{1,\infty}$ norm in one space dimension.
Abdulle, Assyr   +2 more
core   +2 more sources

On the fully discrete approximations of the MGT two-temperatures thermoelastic problem

open access: yesArchives of Mechanics, 2022
We consider a one-dimensional two-temperatures thermoelastic model. The corresponding variational problem leads to a coupled system which is written in terms of the mechanical velocity, the temperature speed and the inductive temperature.
J. Baldonedo   +2 more
doaj   +1 more source

A Priori Estimates or Elliptic Systems

open access: yesZeitschrift für Analysis und ihre Anwendungen, 1987
A priori estimates for the general complex Beltrami equation in connection with Riemann–Hilbert boundary conditions are developed, which can be used for existence as well as uniqueness statements for related nonlinear problems. For this reason the equation together with the boundary conditions are transformed into the canonical form and essentially a ...
Begehr, H., Hsiao, G. C.
openaire   +3 more sources

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