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Low-regularity and high oscillations: numerical analysis and computation of dispersive evolution equations

Publicaciones

A Semi-implicit Exponential Low-Regularity Integrator for the Navier--Stokes Equations

Autores: Buyang Li; Shu Ma; Katharina Schratz
Publicado en: SIAM Journal of Numerical Analysis, Edición 3, 2022, ISSN 0036-1429
Editor: Society for Industrial and Applied Mathematics
DOI: 10.1137/21m1437007

Convergence, error analysis and longtime behavior of the Scalar Auxiliary Variable method for the nonlinear Schrödinger equation

Autores: Poulain, Alexandre; Schratz, Katharina
Publicado en: IMA Journal of Numerical Analysis, 2021, Edición 15, 2021, ISSN 1464-3642
Editor: Oxford University Press
DOI: 10.1093/imanum/drab082

Uniformly accurate integrators for Klein–Gordon–Schrödinger systems from the classical to non-relativistic limit regime

Autores: Maria Cabrera Calvo
Publicado en: Journal of Computational and Applied Mathematics, Edición 10, 2023, ISSN 1879-1778
Editor: Elsevier
DOI: 10.1016/j.cam.2022.114756

A μ-mode BLAS approach for multidimensional tensor-structured problems

Autores: Franco Zivcovich; Marco Caliari; Fabio Cassini
Publicado en: Numerical Algorithms, Edición 8, 2022, ISSN 1017-1398
Editor: Baltzer Science Publishers B.V.
DOI: 10.1007/s11075-022-01399-4

Resonance based schemes for dispersive equations via decorated trees

Autores: Bruned, Yvain; Schratz, Katharina
Publicado en: Forum of Mathematics, Pi, Edición 1, 2022, ISSN 2050-5086
Editor: Cambridge University Press
DOI: 10.48550/arxiv.2005.01649

Fourier integrator for periodic NLS: low regularity estimates via discrete Bourgain spaces

Autores: Ostermann, Alexander; Rousset, Frédéric; Schratz, Katharina
Publicado en: Journal of the European Mathematical Society, Edición 6, 2022, ISSN 1435-9855
Editor: European Mathematical Society Publishing House
DOI: 10.48550/arxiv.2006.12785

Error estimates at low regularity of splitting schemes for NLS

Autores: Alexander Ostermann, Frédéric Rousset, Katharina Schratz
Publicado en: Mathematics of Computation, 2021, Página(s) 1, ISSN 0025-5718
Editor: American Mathematical Society
DOI: 10.1090/mcom/3676

Low-regularity integrators for nonlinear Dirac equations

Autores: Katharina Schratz, Yan Wang and Xiaofei Zhao
Publicado en: Mathematics of Computation, 2020, ISSN 0025-5718
Editor: American Mathematical Society
DOI: 10.1090/mcom/3557

Uniformly accurate low regularity integrators for the Klein--Gordon equation from the classical to non-relativistic limit regime

Autores: María Cabrera Calvo; Katharina Schratz
Publicado en: SIAM Journal of Numerical Analysis, Edición 4, 2022, ISSN 0036-1429
Editor: Society for Industrial and Applied Mathematics
DOI: 10.48550/arxiv.2104.11672

A second-order low-regularity correction of Lie splitting for the semilinear Klein–Gordon equation

Autores: Buyang Li; Katharina Schratz; Franco Zivcovich
Publicado en: ESAIM: Mathematical Modelling and Numerical Analysis, Edición 7, 2023, ISSN 2822-7840
Editor: EDP sciences
DOI: 10.1051/m2an/2022096

Asymptotic preserving trigonometric integrators for the quantum Zakharov system

Autores: Simon Baumstark, Katharina Schratz
Publicado en: BIT Numerical Mathematics, Edición 61/1, 2021, Página(s) 61-81, ISSN 0006-3835
Editor: Lunds Universitet
DOI: 10.1007/s10543-020-00815-2

Error estimates of a Fourier integrator for the cubic Schrödinger equation at low regularity

Autores: Alexander Ostermann, Frédéric Rousset, Katharina Schratz
Publicado en: Foundations of Computational Mathematics, Edición 21/3, 2021, Página(s) 725-765, ISSN 1615-3375
Editor: Springer Verlag
DOI: 10.1007/s10208-020-09468-7

Low regularity integrators for semilinear parabolic equations with maximum bound principles

Autores: Cao-Kha Doan, Thi-Thao-Phuong Hoang, Lili Ju, Katharina Schratz
Publicado en: BIT Numerical Mathematics, 2023, ISSN 0006-3835
Editor: Lunds Universitet

A μ-mode integrator for solving evolution equations in Kronecker form

Autores: Marco Caliari; Fabio Cassini; Lukas Einkemmer; Alexander Ostermann; Franco Zivcovich
Publicado en: Journal of Computational Physics, Edición 14, 2022, ISSN 0021-9991
Editor: Academic Press
DOI: 10.1016/j.jcp.2022.110989

A General Framework of Low Regularity Integrators

Autores: Frédéric Rousset and Katharina Schratz
Publicado en: SIAM Journal on Numerical Analysis, 2021, ISSN 0036-1429
Editor: Society for Industrial and Applied Mathematics
DOI: 10.1137/20m1371506

Time integrators for dispersive equations in the long wave regime

Autores: Calvo, María Cabrera; Rousset, Frédéric; Schratz, Katharina
Publicado en: Mathematics of Computation, Edición 9, 2021, ISSN 1088-6842
Editor: AMS
DOI: 10.1090/mcom/3745

Convergence error estimates at low regularity for time discretizations of KdV

Autores: Frédéric Rousset; Katharina Schratz
Publicado en: Pure and applied analysis, Edición 12, 2022, ISSN 2578-5885
Editor: msp
DOI: 10.2140/paa.2022.4.127

"BAMPHI: Matrix-free and transpose-free action of linear combinations of <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline"" id=""d1e360"" altimg=""si2.svg""><mml:mi>φ</mml:mi></mml:math>-functions from exponential integrators"

Autores: Marco Caliari; Fabio Cassini; Franco Zivcovich
Publicado en: Journal of Computational and Applied Mathematics, Edición 5, 2023, ISSN 0377-0427
Editor: Elsevier BV
DOI: 10.1016/j.cam.2022.114973

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