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Workgroup Functional Analysis

Secretariat
Kollegiengebäude Mathematik (20.30)
Room 2.041

Address
Karlsruher Institut für Technologie
Institut für Analysis
Englerstraße 2
76131 Karlsruhe


samira.junge@kit.edu, natascha.katz@kit.edu


Office hours:
9:00 - 11:00

Tel.: +49 721 608 43727

Fax.: +49 721 608 67650

Photo of Roland Schnaubelt Prof. Dr. Roland Schnaubelt

Office hour for students: Wednesday, 11:30 - 13:00, and by appointment
Room: 2-047 (Englerstr. 2) Kollegiengebäude Mathematik (20.30)
Tel.: +49 721 608 48955
Fax.: +49 721 608 47650
Email: schnaubelt@kit.edu

Karlsruher Institut für Technologie
Fakultät für Mathematik
Institut für Analysis
Englerstrasse 2
76131 Karlsruhe
Germany

Welcome to my webpage!

No office hours on 27 August, 3 September, and 17 September.





Current List of Courses
Semester Titel Typ
Winter Semester 2019/20 Lecture
Lecture
Proseminar
Summer Semester 2019 Lecture
Lecture
Lecture
Seminar
Seminar
Winter Semester 2018/19 Lecture
Seminar
Seminar
Seminar
Summer Semester 2018 Lecture
Seminar
Seminar
Winter Semester 2017/18 Lecture
Lecture
Seminar
Seminar
Seminar
Summer Semester 2017 Lecture
Lecture
Lecture
Seminar
Seminar


Teaching

Lecture Notes

  1. Analysis 1 (in German). Lecture in winter semester 2015/16. Downlowad the pdf file.
  2. Analysis 2 (in German). Lecture in summer semester 2016. Downlowad the pdf file.
  3. Analysis 3 (in German). Lecture in winter semester 2016/17. Download the pdf file.
  4. Analysis 4 (in German). Lecture in summer semester 2017. Download the pdf file.
  5. Analysis für das Lehramt (in German). Lecture in summer semester 2019. Download the pdf file.
  6. Functional Analysis. Lecture in winter semester 2017/18. Downlowad the pdf file. (Version of 2014/15.)
  7. Spectral Theory. Lecture in summer semester 2015. Downlowad the pdf file.
  8. Evolution Equations. Lecture in winter semester 2018/19. Pdf file. (Version of 2010/11.)
  9. Asymptotics of Evolution Equations. Lecture in summer semester 2011. Downlowad the pdf file.
  10. Operator Semigroups and Dispersive Equations. Internet Seminar on Evolution Equations. Winter semester 2012/13. Downlowad the pdf file.

The manuscripts are corrected if mistakes are noted. The date of the respective version is indicated on the titlepage.

Internet Seminar 2019/20: Evolutionary Equations

The internet seminar on evolution equations has been organized every year since 1997 by several working groups in Germany, Italy, Hungary and the Netherlands. It was founded by the functional analysis group in Tübingen. The participants are advanced master students and Ph.D students. From October to February the participants obtain weekly study material at a website. They are supervised by local coordinators at their university (in Karlsruhe: P.Kunstmann and R. Schnaubelt). From March to June they work in (internationally mixed) small groups on a project and report on it in June at the final workshop. This year's workshop takes place in Wuppertal from 21 to 27 June.
This internet seminar is organised by Christian Seifert (Hamburg), Sascha Trostorff (Kiel) and Marcus Waurick (Strathclyde). It is concerned with linear evolution equations, which contain retardations. Such phenomena occur in heat conduction, elaticity or in Maxwell equations, for instance. The course presents a functional analytic approach based on the Fourier-Laplace transform.
Basic knowledge in functional analysis and complex analysis is required. One can register for the internet seminar at its web page, where further information is given. See also this description of the course. In Karlsruhe we will discuss the weekly material in the lecture (or better: the reading course) Evolutionary Equations.
You can find the history of this series of seminars on the internet seminar web site of our group.


Research

CRC 1173 Wave phenomena: analysis and numerics

In the second funding period of the Collaborative Research Centre 1173 (07/19 - 06/23), I am speaker of the integrated research group and principal investigator of the projects

In the first funding period (07/15 - 06/19) I was also a principal investigator of the projects B2: Dispersion Management (with D. Hundertmark) and B5: Biharmonic wave maps (with T. Lamm).

Research interests

  • Qualitative properties of evolution equations (mainly hyperbolic and hyperbolic partial differential equations:
    • Wellposedness and regularity
    • Asymptotic properties of solutions: global existence versus blow-up, stability, convergence, invariant manifolds.
    • Error analysis for numerical schemes of time integration.
    • Lp-regularity of linear parabolic partial differential equations with unbounded coefficients.
    • Recent research focus: Maxwell equations.
  • Control theory.
  • Stochastic evolution equations.
  • Non-autonomous linear evolution equations: asymptotic theory (in particular, exponential dichotomy), existence theory. In this context: evolution semigroups and operator sum method.
  • Spectral and operator theory.
  • Biomathmatics.

Recent preprints

  1. S. Herr, T. Lamm, T. Schmid, R. Schnaubelt: Biharmonic wave maps: Local wellposedness in high regularity. Submitted. Download the pdf file.
  2. R. Schnaubelt, M. Spitz: Local wellposedness of quasilinear Maxwell equations with absorbing boundary conditions. Submitted. Download the pdf file.
  3. R. Schnaubelt, M. Spitz: Local wellposedness of quasilinear Maxwell equations with conservative interface conditions. Submitted. Download the pdf file.
  4. I. Lasiecka, M. Pokojovy, R. Schnaubelt: Exponential decay of quasilinear Maxwell equations with interior conductivity. Submitted. Download the pdf file.
  5. J. Eilinghoff, R. Schnaubelt: Error estimates in L^2 of an ADI splitting scheme for the inhomogeneous Maxwell equations. Submitted. Download the pdf file.
  6. S. Herr, T. Lamm, R. Schnaubelt: Biharmonic wave maps into spheres. To appear in Proc. Amer. Math. Soc. Download the pdf file.
  7. M. Pokojovy, R. Schnaubelt: Boundary stabilization of quasilinear Maxwell equations. To appear in J. Differential Equations. Download the pdf file.

Publications

The preprint versions of all my papers can be found following this link. You can further download my complete list of publications (pdf file) here.

Book

Jan Prüss, Roland Schnaubelt, Rico Zacher: Mathematische Modelle in der Biologie. Deterministische homogene Systeme. Mathematik Kompakt. Birkhäuser, Basel, 2008. (More information.)


Euro-Maghrebian Workshops on Evolution Equations

Since the late 90s the Euro-Maghrebian Workshops on Evolutions Equations have been organized biannually by working groups in Germany, Italy, and France, as well as Morocco, Algeria and Tunisia. This series was started in 1999 by Rainer Nagel and Abdelaziz Rhandi Marrakesh. In these workshops we put a special emphasis on mini courses about recent topics in evolution equations. An overview of these meetings is given on this website.

Co-organised conferences and sessions

  • Seminar Wave Phenomena: Analysis and Numerics in the Mathematical Research Institute Oberwolfach, 24-30 November 2019. See website.
  • Parabolic Evolution Equations, Harmonic Analysis and Spectral Theory in Bad Herrenalb, 6-10 May 2019. See website.
  • Conference on Mathematics of Wave Phenomena in Karlsruhe, 23-27 July 2018. See website.
  • 10th Euro - Maghrebian Workshop on Evolution Equations in Blaubeuren, 26-30 September 2016. See website.
  • Summer school on Wave Phenomena: Analysis and Numerics in Karlsruhe, 12-15 September 2016. See website.
  • 9th Euro - Maghrebian Workshop on Evolution Equations in Marrakech, 22-26 September 2014.
  • Nonlinear Evolution Equations: Analysis and Numerics in the Mathematical Research Institute Oberwolfach, 16-22 March 2014. See: website, program, participants.
  • Operator Semigroups and Dispersive Equations. Workshop of the 16th Internetseminar on Evolution Equations in Blaubeuren, 10-14 June 2013. See website.
  • 8th Euro - Maghrebian Workshop on Evolution Equations in Lecce, 11-15 June 2012. See website.
  • Evolution Equations: Randomness and Asymptotics in Bad Herrenalb, 10-14 October 2011. See website.
  • 7th Workshop on Control of Distributed Parameter Systems in Wuppertal, 18-22 July 2011. See website.
  • International Conference on Evolution Equations in Schmitten, Germany, 11-15 October 2010. See website.
  • Special session Stability of Partial Differential Equations and Evolution Equations of the 8th AIMS Conference on Dynamical Systems, Differential Equations and Applications in Dresden, Germany, 25-28 July 2010. See website.
  • Workshop Semigroups Everywhere in Tübingen, Germany, 20-22 November 2008.
  • Special Session Operator Semigroups and Evolution Equations of the Joint International Meeting UMI - DMV in Perugia, Italy, 18-22 June 2007.

Projects

  • Principal investigator of the Collaborative Research Centre 1173 Wave phenomena: analysis and numerics (07/15 - 06/19, 07/19 - 06/23), funded by DFG (Germany).
  • Principal investigator of the Research Training Group 1294 Analysis, Simulation and Design of Nanotechnological Processes (10/10 - 03/15), funded by DFG (Germany).
  • Project Qualitative behavior of parabolic problems with nonlinear dynamical and static boundary conditions (04/09 - 03/11), funded by DFG (Germany).
  • Co-organisor of the cooperation project Functional analytic methods for evolution equations (05/07 - 04/09; 01/11 - 12/12) with L. Maniar and A. Rhandi, Universite de Marrakech, funded by DFG (Germany) and CNRST (Morocco). (Previous related projects: 04/01 - 03/03; 06/04 - 05/06.)
  • Co-organisor of the Marie Curie exchange program Asymptotics of Operator Semigroups (11/12 - 10/16).
  • Co-organisor of the cooperation project Center manifolds and stability of nonlinear partial differential equations (2004/05) with Y. Latushkin, University of Missouri-Columbia, funded by DAAD (Germany) and NSF (USA).

A short curriculum vitae

1988-94 Study of mathematics, physics and philosophy at the Universities of Stuttgart and Tübingen (Germany). Diploma in mathematics, Tübingen
1996 Ph.D. in mathematics, Tübingen
2000 Habilitation in mathematics, Tübingen
2000-06 Assistant Professor at the University of Halle (C2, since 07/01)
2006 Professor (W3) at the Karlsruhe Institute of Technology (until 2009: University of Karlsruhe)

Here you can view a more complete curriculum vitae (pdf file).