Search results

An abstract approach to the Robin–Robin method Emil Engström and Eskil Hansen 1 Introduction The nonoverlapping Robin–Robin method, also known as the optimized Schwarz method with Robin transmission conditions, was introduced in [12] and shown to converge when applied to linear elliptic equations. Since then there have been several theoretical results concerning the method for both nonlinear elli

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/EEEHDD28.pdf - 2026-09-11

ERROR BOUNDS FOR FULL SPACE-TIME SPLITTING DISCRETIZATIONS OF SEMI-LINEAR SPDES – WITH A FOCUS ON DG DOMAIN DECOMPOSITIONS MONIKA EISENMANN, ESKIL HANSEN, AND MARVIN JANS Abstract. We consider a fully discretized numerical scheme for parabolic stochastic partial dif- ferential equations with multiplicative noise. Our abstract framework can be applied to formulate a non-iterative domain decompositi

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/EHJ_DD_SPDE.pdf - 2026-09-11

MODIFIED NEUMANN–NEUMANN METHODS FOR SEMI- AND QUASILINEAR ELLIPTIC EQUATIONS ∗ EMIL ENGSTRÖM† AND ESKIL HANSEN‡ Abstract. The Neumann–Neumann method is a commonly employed domain decomposition method for linear elliptic equations. However, the method exhibits slow convergence when applied to semilinear equations and does not seem to converge at all for certain quasilinear equations. We therefore

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/EngstromHansenMNN.pdf - 2026-09-11

Linearly convergent nonoverlapping domain decomposition methods for quasilinear parabolic equations EMIL ENGSTRÖM* AND ESKIL HANSEN Centre for Mathematical Sciences, Lund University, P.O. Box 118, 221 00, Lund, Sweden *Corresponding author: emil.engstrom@math.lth.se We prove linear convergence for a new family of modified Dirichlet–Neumann methods applied to quasilinear parabolic equations, as we

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/Engstrom_Hansen.pdf - 2026-09-11

Page 1 of 22 A variational approach to the sum splitting scheme MONIKA EISENMANN† AND ESKIL HANSEN‡ Centre for Mathematical Sciences Lund University P.O. Box 118 221 00 Lund, Sweden [Received on ; revised on ] Nonlinear parabolic equations are frequently encountered in applications and efficient approximating techniques for their solution are of great importance. In order to provide an effective s

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/PaperEisenmannHansen.pdf - 2026-09-11

Convergence Analysis of the Nonoverlapping Robin–Robin Method for Nonlinear Elliptic Equations CONVERGENCE ANALYSIS OF THE NONOVERLAPPING ROBIN–ROBIN METHOD FOR NONLINEAR ELLIPTIC EQUATIONS∗ EMIL ENGSTRÖM† AND ESKIL HANSEN‡ Abstract. We prove convergence for the nonoverlapping Robin–Robin method applied to non- linear elliptic equations with a p-structure, including degenerate diffusion equations

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/RR_nonlin.pdf - 2026-09-11

Convergence analysis of Lie and Strang splitting for operator-valued differential Riccati equations CONVERGENCE ANALYSIS OF LIE AND STRANG SPLITTING FOR OPERATOR-VALUED DIFFERENTIAL RICCATI EQUATIONS∗ ESKIL HANSEN† , TONY STILLFJORD† , AND TEODOR ÅBERG† Abstract. Differential Riccati equations (DREs) are semilinear matrix- or operator-valued differential equations with quadratic non-linearities.

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/Riccati_expsplitt.pdf - 2026-09-11

ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering M. Papadrakakis, V. Papadopoulos, G. Stefanou, V. Plevris (eds.) Crete Island, Greece, 5–10 June 2016 A STUDY OF MULTIGRID SMOOTHERS USED IN COMPRESSIBLE CFD BASED ON THE CONVECTION DIFFUSION EQUATION Philipp Birken1, Jonathan Bull2, and Antony Jameson3 1Lund University, Centre for the Mathemat

https://www.maths.lu.se/fileadmin/maths/personal_staff/Philipp_Birken/BirkenBullJamesonECCOMAS16.pdf - 2026-09-11

Extrapolation in Time in Thermal Fluid Structure Interaction Philipp Birken, Tobias Gleim, Detlef Kuhl and Andreas Meister Abstract We consider time dependent thermal fluid structure interaction. The re- spective models are the compressible Navier-Stokes equations and the nonlinear heat equation. A partitioned coupling approach via a Dirichlet-Neumann method and a fixed point iteration is employed

https://www.maths.lu.se/fileadmin/maths/personal_staff/Philipp_Birken/BirkenGleimKuhlMeisterCE14.pdf - 2026-09-11

X International Conference on Computational Methods for Coupled Problems in Science and Engineering COUPLED PROBLEMS 2023 M. Papadrakakis, B. Schrefler and E. Oñate (Eds) ON THE CHOICE OF TIME WINDOW LENGTH FOR WAVEFORM ITERATIONS FOR COUPLED PROBLEMS NIKLAS KOTARSKY∗, AND PHILIPP BIRKEN† ∗Center for Mathematical Sciences Lund University Box 118, 22100 Lund, Sweden e-mail: niklas.kotarsky@math.lu

https://www.maths.lu.se/fileadmin/maths/personal_staff/Philipp_Birken/Kotarsky_Birken_Coupled_23.pdf - 2026-09-11

SIAM J. SCI. COMPUT. c\bigcirc 2019 Society for Industrial and Applied Mathematics Vol. 41, No. 5, pp. S86--S105 A MULTIRATE NEUMANN--NEUMANN WAVEFORM RELAXATION METHOD FOR HETEROGENEOUS COUPLED HEAT EQUATIONS\ast AZAHAR MONGE\dagger AND PHILIPP BIRKEN\dagger Abstract. An important challenge when coupling two different time dependent problems is to increase parallelization in time. We suggest a mu

https://www.maths.lu.se/fileadmin/maths/personal_staff/Philipp_Birken/MongeBirkenSISC19.pdf - 2026-09-11

() ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering M. Papadrakakis, V. Papadopoulos, G. Stefanou, V. Plevris (eds.) Crete Island, Greece, 5–10 June 2016 CONVERGENCE ANALYSIS OF COUPLING ITERATIONS FOR THE UNSTEADY TRANSMISSION PROBLEM WITH MIXED DISCRETIZATIONS Azahar Monge1 and Philipp Birken1 1Centre for Mathematical Sciences Lund Universi

https://www.maths.lu.se/fileadmin/maths/personal_staff/Philipp_Birken/Monge__Birken_-_2016_-_Convergence_analysis_of_coupling_iterations_for_the_unsteady_transmission_problem_with_mixed_discretizations.pdf - 2026-09-11

Research Seminar, Human Rights Studies | Human Rights Studies Research Seminar, Human Rights Studies Link to rss Type of events All events PhD thesis defence Seminar Events per semester Choose semester autumn 2025 spring 2026 autumn 2026 11 Sep 11 September 2026 10:15 to 12:30 PhD thesis defence PhD-defense: Emelie Lantz "Claiming Rights in the City" 23 Sep 23 September 2026 13:15 to 15:00 Seminar

https://www.mrs.lu.se/en/about-us/calender/seminars/Research%20Seminar,%20Human%20Rights%20Studies/ - 2026-09-11

Person | Human Rights Studies

https://www.mrs.lu.se/en/person/LenaHalldenius/www.linkedin.com/in/lena-halldenius-60a49158/ - 2026-09-11

Emma Lennhammer Draft chapter of PhD-thesis | Mänskliga rättigheter 2 dec Emma Lennhammer Draft chapter of PhD-thesis 2 december 2026 13:15 till 15:00 Seminarium Emma Lennhammer is a PhD-student in Human Rights Studies and a and a member of the National Graduate School of Historical Studies. At this seminar, Emma Lennhammer will present a draft chapter of her PhD-thesis Time and Its Subjects in th

https://www.mrs.lu.se/om-oss/kalendarium/seminarieserier/emma-lennhammer-draft-chapter-phd-thesis - 2026-09-11

PhD-defense: Emelie Lantz "Claiming Rights in the City" | Mänskliga rättigheter 11 sep PhD-defense: Emelie Lantz "Claiming Rights in the City" 11 september 2026 10:15 till 12:30 Disputation Emelie Lantz defends her PhD-thesis in Human Rights Studies: Claiming Rights in the City. A Study of Cross-Sector Partnerships for Social Sustainability in Malmö. Welcome to Emelie Lantz' PhD-defense in Human R

https://www.mrs.lu.se/om-oss/kalendarium/seminarieserier/phd-defense-emelie-lantz-claiming-rights-city - 2026-09-11

Presentation of three new PhD-projects in Human Rights Studies | Mänskliga rättigheter 4 nov Presentation of three new PhD-projects in Human Rights Studies 4 november 2026 13:15 till 15:00 Seminarium Stella Terjung, Linnea Falk, and Erin Rizzato are new PhD-students in Human Rights Studies from the Fall of 2026. Stella Terjung, Linnea Falk, and Erin Rizzato will introduce the plans for their respe

https://www.mrs.lu.se/om-oss/kalendarium/seminarieserier/presentation-three-new-phd-projects-human-rights-studies - 2026-09-11

Person | Mänskliga rättigheter

https://www.mrs.lu.se/person/LenaHalldenius/www.linkedin.com/in/lena-halldenius-60a49158/ - 2026-09-11

Sjukskrivningar på grund av stress – ett växande jämställdhetsproblem för akademiker Sjukskrivningar på grund av stress – ett växande jämställdhetsproblem för akademiker Thomas Andrén © Thomas Andrén och Saco 2025 www.saco.se Innehåll Sammanfattning 4 Inledning 6 Den sammantagna sjukfrånvaron har stabiliserats men den underliggande utvecklingen oroar 8 Sjukpenningtalet ökar svagt för kvinnor 8 Utv

https://www.saco.se/contentassets/0f922c75fcec49fc9a40f1cb54b86c04/2025-sjukskrivningar-pa-grund-av-stress.pdf - 2026-09-11

Bilaga 1 Saco-S rådet vid Göteborgs universitet – Inför årsmötet Medlemsantal/ledamöter till Saco-S rådet 2026 Varje förbund med minst 1 medlem har rätt att utse 1 delegat. Sedan har varje förbund rätt att utse 1 delegat/100 medlemmar. 100 dubbelanslutna medlemmar = ½ plats per förbund Förbund Totalt antal delegater/förbund SULF 14 Akademikerförbundet SSR 4 Akavia 4 DIK 3 Fysioteraputerna 1 Naturv

https://www.saco.se/contentassets/19f4d52f13cd4c4087a4efc76ef40052/bilaga-1---rostlangd-2026.pdf - 2026-09-11