Results 121 to 130 of about 5,210,310 (318)

On Fractional Schrodinger Equations in sobolev spaces [PDF]

open access: yes, 2015
Let $\sigma\in(0,1)$ with $\sigma\neq\frac{1}{2}$. We investigate the fractional nonlinear Schr\"odinger equation in $\mathbb R^d$: $$i\partial_tu+(-\Delta)^\sigma u+\mu|u|^{p-1}u=0,\, u(0)=u_0\in H^s,$$ where $(-\Delta)^\sigma$ is the Fourier multiplier
Younghun Hong, Y. Sire
semanticscholar   +1 more source

Hierarchical Optimization of the As‐Rigid‐As‐Possible Energy

open access: yesComputer Graphics Forum, EarlyView.
Abstract The As‐Rigid‐As‐Possible (ARAP) energy [SA07] has become a versatile ingredient in various geometry processing and machine learning methods. The classic method for its minimization is a block coordinate descent, alternating between local rotation estimation and a global linear solve, which converges slowly for large problem instances.
Hendrik Meyer, Bernd Bickel, Marc Alexa
wiley   +1 more source

Sharp log-Sobolev inequalities in ${\sf CD}(0,N)$ spaces with applications

open access: yes, 2023
Given $p,N>1,$ we prove the sharp $L^p$-log-Sobolev inequality on noncompact metric measure spaces satisfying the ${\sf CD}(0,N)$ condition, where the optimal constant involves the asymptotic volume ratio of the space.
Kristály, Alexandru   +3 more
core   +1 more source

Discursive Power, Civilian Agency, Wartime Duress, and Resilience: Letters to the Authorities in the Blockade of Leningrad

open access: yesThe Russian Review, EarlyView.
Abstract How did World War II affect the nature and resilience of Soviet institutions and authority, especially in the extreme case of the Blockade of Leningrad? During the Blockade, Leningraders acted with great agency by engaging in the shadow trade of food and shadow talk for information and community in order to survive.
Jeffrey K. Hass, Nikita A. Lomagin
wiley   +1 more source

Sobolev spaces on graded groups [PDF]

open access: yes, 2017
15.05.14 KB. Ok to add working paper to spiral, authors retain copyrightWe study the Lp-properties of positive Rockland operators and define Sobolev spaces on general graded groups. This generalises the case of sub-Laplacians on stratified groups studied
Fischer, V, Ruzhansky, M
core   +1 more source

Sobolev spaces adapted to the Schrödinger operator with inverse-square potential [PDF]

open access: yes, 2015
We study the $$L^p$$Lp-theory for the Schrödinger operator $$\mathcal L_a$$La with inverse-square potential $$a|x|^{-2}$$a|x|-2. Our main result describes when $$L^p$$Lp-based Sobolev spaces defined in terms of the operator $$(\mathcal L_a)^{s/2}$$(La)s ...
R. Killip   +4 more
semanticscholar   +1 more source

Sobolev Spaces on Locally Compact Abelian Groups: Compact Embeddings and Local Spaces

open access: yesJournal of Function Spaces, 2014
We continue our research on Sobolev spaces on locally compact abelian (LCA) groups motivated by our work on equations with infinitely many derivatives of interest for string theory and cosmology.
Przemysław Górka   +2 more
doaj   +1 more source

Traces of multipliers in pairs of weighted Sobolev spaces

open access: yesJournal of Function Spaces and Applications, 2005
We prove that the pointwise multipliers acting in a pair of fractional Sobolev spaces form the space of boundary traces of multipliers in a pair of weighted Sobolev space of functions in a domain.
Vladimir Maz'ya, Tatyana Shaposhnikova
doaj   +1 more source

A characterization of nonhomogeneous wavelet dual frames in Sobolev spaces

open access: yesJournal of Inequalities and Applications, 2016
In recent years, nonhomogeneous wavelet frames have attracted some mathematicians’ interest. This paper investigates such problems in a Sobolev space setting. A characterization of nonhomogeneous wavelet dual frames in Sobolev spaces pairs is obtained.
Jian-Ping Zhang, Yun-Zhang Li
doaj   +1 more source

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