Results 21 to 30 of about 1,841 (47)

On a result by Boccardo-Ferone-Fusco-Orsina

open access: yes, 2011
Via a symmetric version of Ekeland's principle recently obtained by the author we improve, in a ball or an annulus, a result of Boccardo-Ferone-Fusco-Orsina on the properties of minimizing sequences of functionals of calculus of variations in the non ...
Squassina, Marco
core   +1 more source

Regularity of a degenerate parabolic equation appearing in Vecer's unified pricing of Asian options

open access: yes, 2015
Vecer derived a degenerate parabolic equation with a boundary condition characterizing the price of Asian options with generally sampled average. It is well understood that there exists a unique probabilistic solution to such a problem but it remained ...
Dong, Hongjie, Kim, Seick
core   +1 more source

Transference of fractional Laplacian regularity

open access: yes, 2014
In this note we show how to obtain regularity estimates for the fractional Laplacian on the multidimensional torus $\mathbb{T}^n$ from the fractional Laplacian on $\mathbb{R}^n$.
J.E. Galé   +4 more
core   +1 more source

An incompressible 2D didactic model with singularity and explicit solutions of the 2D Boussinesq equations

open access: yes, 2014
We give an example of a well posed, finite energy, 2D incompressible active scalar equation with the same scaling as the surface quasi-geostrophic equation and prove that it can produce finite time singularities. In spite of its simplicity, this seems to
Chae, Dongho   +2 more
core   +1 more source

Analyticity of dissipative-dispersive systems in higher dimensions

open access: yes, 2018
We investigate the analyticity of the attractors of a class of Kuramoto-Sivashinsky type pseudo-differential equations in higher dimensions, which are periodic in all spatial variables and possess a universal attractor.
Evripidou, Charalampos   +1 more
core   +1 more source

An example of a mean-convex mean curvature flow developing infinitely many singular epochs

open access: yes, 2015
In this paper, we give an example of a compact mean-convex hypersurface with a single singular point moved by mean curvature having a sequence of singular epochs (times) converging to zero.Comment: 7 pages, 3 ...
Miura, Tatsuya
core   +1 more source

Fractional differentiability for solutions of the inhomogenous $p$-Laplace system

open access: yes, 2017
It is shown that if $p \ge 3$ and $u \in W^{1,p}(\Omega,\mathbb{R}^N)$ solves the inhomogenous $p$-Laplace system \[ \operatorname{div} (|\nabla u|^{p-2} \nabla u) = f, \qquad f \in W^{1,p'}(\Omega,\mathbb{R}^N), \] then locally the gradient $\nabla u ...
Miśkiewicz, Michał
core   +1 more source

Oscillating waves and optimal smoothing effect for one-dimensional nonlinear scalar conservation laws [PDF]

open access: yes, 2012
Lions, Perthame, Tadmor conjectured in 1994 an optimal smoothing effect for entropy solutions of nonlinear scalar conservations laws . In this short paper we will restrict our attention to the simpler one-dimensional case.
Castelli, Pierre, Junca, Stéphane
core   +3 more sources

Nonlinear elliptic equations with high order singularities [PDF]

open access: yes, 2016
We study non-variational degenerate elliptic equations with high order singular structures. No boundary data are imposed and singularities occur along an {\it a priori} unknown interior region. We prove that positive solutions have a universal modulus of
Teixeira, Eduardo V.
core  

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