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

Publikacje

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

Autorzy: Buyang Li; Shu Ma; Katharina Schratz
Opublikowane w: SIAM Journal of Numerical Analysis, Numer 3, 2022, ISSN 0036-1429
Wydawca: 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

Autorzy: Poulain, Alexandre; Schratz, Katharina
Opublikowane w: IMA Journal of Numerical Analysis, 2021, Numer 15, 2021, ISSN 1464-3642
Wydawca: Oxford University Press
DOI: 10.1093/imanum/drab082

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

Autorzy: Maria Cabrera Calvo
Opublikowane w: Journal of Computational and Applied Mathematics, Numer 10, 2023, ISSN 1879-1778
Wydawca: Elsevier
DOI: 10.1016/j.cam.2022.114756

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

Autorzy: Franco Zivcovich; Marco Caliari; Fabio Cassini
Opublikowane w: Numerical Algorithms, Numer 8, 2022, ISSN 1017-1398
Wydawca: Baltzer Science Publishers B.V.
DOI: 10.1007/s11075-022-01399-4

Resonance based schemes for dispersive equations via decorated trees

Autorzy: Bruned, Yvain; Schratz, Katharina
Opublikowane w: Forum of Mathematics, Pi, Numer 1, 2022, ISSN 2050-5086
Wydawca: Cambridge University Press
DOI: 10.48550/arxiv.2005.01649

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

Autorzy: Ostermann, Alexander; Rousset, Frédéric; Schratz, Katharina
Opublikowane w: Journal of the European Mathematical Society, Numer 6, 2022, ISSN 1435-9855
Wydawca: European Mathematical Society Publishing House
DOI: 10.48550/arxiv.2006.12785

Error estimates at low regularity of splitting schemes for NLS

Autorzy: Alexander Ostermann, Frédéric Rousset, Katharina Schratz
Opublikowane w: Mathematics of Computation, 2021, Strona(/y) 1, ISSN 0025-5718
Wydawca: American Mathematical Society
DOI: 10.1090/mcom/3676

Low-regularity integrators for nonlinear Dirac equations

Autorzy: Katharina Schratz, Yan Wang and Xiaofei Zhao
Opublikowane w: Mathematics of Computation, 2020, ISSN 0025-5718
Wydawca: 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

Autorzy: María Cabrera Calvo; Katharina Schratz
Opublikowane w: SIAM Journal of Numerical Analysis, Numer 4, 2022, ISSN 0036-1429
Wydawca: 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

Autorzy: Buyang Li; Katharina Schratz; Franco Zivcovich
Opublikowane w: ESAIM: Mathematical Modelling and Numerical Analysis, Numer 7, 2023, ISSN 2822-7840
Wydawca: EDP sciences
DOI: 10.1051/m2an/2022096

Asymptotic preserving trigonometric integrators for the quantum Zakharov system

Autorzy: Simon Baumstark, Katharina Schratz
Opublikowane w: BIT Numerical Mathematics, Numer 61/1, 2021, Strona(/y) 61-81, ISSN 0006-3835
Wydawca: Lunds Universitet
DOI: 10.1007/s10543-020-00815-2

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

Autorzy: Alexander Ostermann, Frédéric Rousset, Katharina Schratz
Opublikowane w: Foundations of Computational Mathematics, Numer 21/3, 2021, Strona(/y) 725-765, ISSN 1615-3375
Wydawca: Springer Verlag
DOI: 10.1007/s10208-020-09468-7

Low regularity integrators for semilinear parabolic equations with maximum bound principles

Autorzy: Cao-Kha Doan, Thi-Thao-Phuong Hoang, Lili Ju, Katharina Schratz
Opublikowane w: BIT Numerical Mathematics, 2023, ISSN 0006-3835
Wydawca: Lunds Universitet

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

Autorzy: Marco Caliari; Fabio Cassini; Lukas Einkemmer; Alexander Ostermann; Franco Zivcovich
Opublikowane w: Journal of Computational Physics, Numer 14, 2022, ISSN 0021-9991
Wydawca: Academic Press
DOI: 10.1016/j.jcp.2022.110989

A General Framework of Low Regularity Integrators

Autorzy: Frédéric Rousset and Katharina Schratz
Opublikowane w: SIAM Journal on Numerical Analysis, 2021, ISSN 0036-1429
Wydawca: Society for Industrial and Applied Mathematics
DOI: 10.1137/20m1371506

Time integrators for dispersive equations in the long wave regime

Autorzy: Calvo, María Cabrera; Rousset, Frédéric; Schratz, Katharina
Opublikowane w: Mathematics of Computation, Numer 9, 2021, ISSN 1088-6842
Wydawca: AMS
DOI: 10.1090/mcom/3745

Convergence error estimates at low regularity for time discretizations of KdV

Autorzy: Frédéric Rousset; Katharina Schratz
Opublikowane w: Pure and applied analysis, Numer 12, 2022, ISSN 2578-5885
Wydawca: 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"

Autorzy: Marco Caliari; Fabio Cassini; Franco Zivcovich
Opublikowane w: Journal of Computational and Applied Mathematics, Numer 5, 2023, ISSN 0377-0427
Wydawca: Elsevier BV
DOI: 10.1016/j.cam.2022.114973

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