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pro vyhledávání: '"Rosén, Andreas"'
Autor:
Rosén, Andreas
We prove sharp weighted estimates for the non-tangential maximal function of singular integrals mapping functions from $\mathbf{R}^n$ to the half-space in $\mathbf{R}^{1+n}$ above $\mathbf{R}^n$. The proof is based on pointwise sparse domination of t
Externí odkaz:
http://arxiv.org/abs/2406.01776
Autor:
Duse, Erik, Rosén, Andreas
We prove a Weitzenb\"ock identity for general pairs of constant coefficient homogeneous first order partial differential operators, and deduce from it sufficient algebraic conditions for coerciveness and Morrey estimates under the natural 1/2 boundar
Externí odkaz:
http://arxiv.org/abs/2404.09628
Autor:
Brocchi, Gianmarco, Rosén, Andreas
We prove a Kato square root estimate with anisotropically degenerate matrix coefficients. We do so by doing the harmonic analysis using an auxiliary Riemannian metric adapted to the operator. We also derive $L^2$-solvability estimates for boundary va
Externí odkaz:
http://arxiv.org/abs/2404.09580
Autor:
Kapsalis, Alexandra, Rosén, Andreas
Today, sustainability has become a central part of every recent global agenda. As the world is establishing a more sustainable path, professional service firms have started setting up new targets and goals to meet the changing demands and regulations
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-317587
Weighted quadratic estimates are proved for certain bisectorial firstorder differential operators with bounded measurable coefficients which are (not necessarily pointwise) accretive, on complete manifolds with positive injectivity radius. As compare
Externí odkaz:
http://arxiv.org/abs/2209.11529
An integral equation reformulation of the Maxwell transmission problem is presented. The reformulation uses techniques such as tuning of free parameters and augmentation of close-to-rank-deficient operators. It is designed for the eddy current regime
Externí odkaz:
http://arxiv.org/abs/2112.11275
Autor:
Hytönen, Tuomas, Rosén, Andreas
We prove boundedness of Calder\'on-Zygmund operators acting in Banach functions spaces on domains, defined by the $L_1$ Carleson functional and $L_q$ ($1
Externí odkaz:
http://arxiv.org/abs/2108.10597
Two recently derived integral equations for the Maxwell transmission problem are compared through numerical tests on simply connected axially symmetric domains for non-magnetic materials. The winning integral equation turns out to be entirely free fr
Externí odkaz:
http://arxiv.org/abs/2007.12260
Autor:
Helsing, Johan, Rosén, Andreas
A new integral equation formulation is presented for the Maxwell transmission problem in Lipschitz domains. It builds on the Cauchy integral for the Dirac equation, is free from false eigenwavenumbers for a wider range of permittivities than other kn
Externí odkaz:
http://arxiv.org/abs/1911.00788
Autor:
Weinberger Rosen, Andreas, Jensen, Henry, Olesen, Tina Bech, Møller, Henrik, Jensen, Jens Winther, Gögenur, Ismail
Publikováno v:
In Cancer Epidemiology October 2023 86