Functional Analysis

Waves

Winter Term 2015/2016
Graduate Seminar on PDEs (S4B2)
Prof. Dr. J. J. L. Velázquez, Dr. M. Helmers

 

Seminar sessions Friday 10–12, room 2.040 (Endenicher Allee 60).

 

A preliminary meeting will be on Friday, 25.09.15 at 10.15am in room 2.040.

Synopsis

Waves are an essential and ubiquitous part of our world and they intrigue many people: music-lovers listening to their favourite songs, children throwing stones across the pond, or mathematicians and physicists studying them. Corresponding models for wave propagation contain many interesting dynamic phenomena.

 

In the seminar, we will consider some of these phenomena and methods for certain wave models and equations. Topics will be selected from

  • Geometrical optics, e. g. propagation of waves in terms of rays; reflection, refraction and diffraction;
  • Solitons, i. e. localized waves that do not change form and interact with other waves "elastically";
  • Scattering and the Inverse Scattering Method;
  • Defects, e. g. interfaces and vortices;
  • Smoothing properties.

Prerequisites

Basic knowledge of PDEs is essential, complex analysis is useful.

Organization

The seminar sessions will be on Fridays 10–12, room is tbc.

 

Topics are distributed in the preliminary meeting on 25.09.15. Interested students who cannot attend this meeting are asked to contact us by email.

Literature sample

  1. M. J. Ablowitz. Solitons, nonlinear evolution equations and inverse scattering. Cambridge University Press, 1991.
  2. P. Constantin and J. C. Saut. Local smoothing properties of dispersive equations. J. Amer. Soc. Math. 1, 413–439, 1988.
  3. R. Jerrard. Defects in semilinear wave equations and timelike minimal surfaces in Minkowski space. Anal. PDE 4, 285–340, 2011.
  4. J. B. Keller. Geometrical theory of diffraction. J. Opt. Soc. Amer. 52, 116–130, 1962.
  5. P. D. Lax. Integrals of nonlinear equations of evolution and solitary waves. Comm. Pure Appl. Math. 21, 467–490, 1968.

News

Prof. Dr. Lisa Sauermann has been honored with the von Kaven Award 2023 for her outstanding scientific achievements. (16.11.2023)

Prof. Dr. Angkana Rüland has been awarded a New Horizons in Mathematics Prize 2024 for her contributions to applied analysis:
https://www.hcm.uni-bonn.de/hcm-news/angkana-rueland-to-receive-illustrious-new-horizons-prize/
(14.09.2023)

Prof. Dr. Angkana Rüland has been awarded the Calderon Prize that is awarded every two years by the Inverse Problems International Association: https://www.hcm.uni-bonn.de/hcm-news/calderon-prize-for-angkana-rueland/ (06.09.2023)

Prof. Dr. Karl-Theodor Sturm has been elected into the Academia Europaea. (28.06.2022)

Florian Schweiger erhielt den Hausdorff-Gedächtnispreis 2021 der Fachgruppe Mathematik für die beste Dissertation. Er fertigte die Dissertation unter der Betreuung von Prof. Stefan Müller an. Unter anderen wurde Vanessa Ryborz mit einem Preis der Bonner Mathematischen Gesellschaft für ihre von Prof. Sergio Conti betreute Bachelorarbeit ausgezeichnet. (18.01.2022)

Prof. Dr. Sergio Albeverio has been elected into the Academia Europaea and the Accademia Nazionale dei Lincei (more; 02.12.2021).

Contact

Managing Director: Prof. Dr. Juan J. L. Velázquez
Chief Administrator: Dr. B. Doerffel
geschaeftsfuehrung@iam.uni-bonn.de
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Mailing address

Institute for Applied Mathematics
University of Bonn
Endenicher Allee 60
D-53115 Bonn / Germany