Filtry
Homeomorphisms of bounded variation
We show that the inverse of a planar homeomorphism of bounded variation is also of bounded variation. In higher dimensions we show that $f^{-1}$ is of bounded variation provided that $fin W^{1,1}(Omega;rn)$ is a ho...
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Bilipschitz mappings with derivatives of bounded variation
Let $Omegasubsetrn$ be open and suppose that $f:Omegatorn$ is a bilipschitz mapping such that $Dfin BV_{loc}(Omega,er^{n^2})$. We show that under these assumptions the inverse satisfies $Df^{-1}in BV_{loc}(f(Omega),er^{n^2})$....
BA - Obecná matematika
- 2008 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Differences of two semiconvex functions on the real line
We give a complete characterization of real functions on the real line which can be represented as the difference of two semiconvex functions with a general modulus (or of two strongly paraconvex functions)....
BA - Obecná matematika
- 2016 •
- Jx •
- Odkaz
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
The Analysis and Variation of Composite Omega Shaped Beam
The main goal of this work is to provide a composite alternative to an already existing beam which has omega cross section. The main part of this work is focused on using the finite element method to solve and optimize the problem. Firstly, ...
Applied mechanics
- 2019 •
- O
Rok uplatnění
O - Ostatní výsledky
GENERALIZED W1,1-YOUNG MEASURES AND RELAXATION OF PROBLEMS WITH LINEAR GROWTH
by sequences of gradients of maps in W-1,W-1(Omega;R-M), where Omega subset of R-N concentrations of the sequence of gradients at the boundary of Omega were excluded. As an application of our result we study the relaxation...
Applied mathematics
- 2018 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Classification of strict limits of planar BV homeomorphisms
We present a classification of m-strict limits (i.e. fk (*)-> f and *|D1f(k)|(Omega) + |D(2)f(k)|(Omega) -> |D(1)f |(Omega) + |D(2)f |(Omega)) of planar BV homeomorphisms; a class previously studied by the au...
Pure mathematics
- 2023 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Calculus of Variations - Smooth homeomorphic approximation of piecewise affine homeomorphisms
Given any integral a locally finitely piecewise affine homeomorphism of Omega subset of R-n onto Delta subset of R-n in W-1,W-p, 1 <= p < infinity and any epsilon > 0 we construct a smooth injective map (f) over tilde such that para...
Applied mathematics
- 2021 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
On Valdivia strong version of Nikodym boundedness property
Following Schachermayer, a subset BB of an algebra AA of subsets of omega is said to have the N-property if a BB-pointwise bounded subset M of ba(A)ba) finitely additive measures of bounded variation defined on AA. Moreover BB is sa...
Pure mathematics
- 2017 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Generalized W1-1-Young Measures and Relaxation of Problems with Linear Growth
by sequences of gradients of maps in $W^{1,1}(Omega-{R}^M)$, where $Omegasubset{R}^N concentrations of the sequence of gradients at the boundary of $Omega$ were excluded. As an application of our result we study the relaxation of n...
Pure mathematics
- 2018 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
HR 4074: an emission-free NRP twin of the Be star 28 CMa.
Echelle spectra obtained in 1999-2000 confirm that the southern B2IVe star HR 4074 shows conspicuous periodic line profile variations very similar to those known from proto-typical line profile-variable Be star 28(omega) CMa....
BN - Astronomie a nebeská mechanika, astrofyzika
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
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