Vorlesung: Partielle Differentialgleichungen (PDG1) (WiSe 2022/23)
[UPDATE 28.07.2022:] This course will be entirely
live / face-to-face ("Präsenz") (lectures, exercise classes, tutorials).
Please note the present LMU Corona-rules.
NOTE THAT THIS MIGHT CHANGE (depending on the Covid-situation)!!
To access the course material, you need to sign up in uni2work.
Lecture (Vorlesung):
Tue 14-16 & Wed 10-12 (both in B 004). LSF
Exercises (Übungen):
See
separate webpage (uni2work). LSF
Tutorials (Tutorien):
See separate webpage (uni2work).
Synopsis (Kurzbeschreibung):
This course gives an introduction to Partial Differential
Equations (PDEs), a vast area within Analysis. PDE's play an important role
in applications of Mathematics to other sciences (most prominently in
Physics and Engineering, but also in Biology and Financial
Sciences), as well as in Pure Mathematics (Analysis, Geometry,
Stochastics; Algebra less).
Among other things, we will study: the method of characteristics for (non-linear) first-order PDEs, the
classification of linear 2nd
order PDEs in elliptic, parabolic, and hyperbolic equations, explicit classical
solutions for the most prominent such equations
(Laplace and Poisson equations, heat equation, wave equation),
including boundary value problems and Cauchy problems.
(Die Vorlesung führt in die Theorie der partiellen
Differentialgleichungen ein. PDG'en spielen eine zentrale Rolle
sowohl in vielen Anwendungsgebieten der Mathematik, als auch in der
reinen Mathematik. Behandelt werden, unter anderem, die
Charakteristikenmethode, die Typeneinteilung in elliptische,
hyperbolische und parabolische Differentialgleichungen, explizite
Lösungsmethoden für die wichtigsten Typen linearer PDG'en zweiter
Ordnung (Laplacegleichung, Poissongleichung, Wellengleichung und
Wärmeleitungsgleichung), Randwert-Probleme, Cauchy-Probleme.)
Audience (Hörerkreis):
Bachelor students of Mathematics (PO 2015: WP16 - PO 2021: WP23), Master students of
Mathematics (WP2), Master students of 'Finanz- und
Versicherungsmathematik' (PO 2019: WP15 - PO 2021: WP14), TMP Master.
Credits:
9 (6+3) ECTS.
Prerequisites (Vorkenntnisse):
Analysis I-III, Lineare Algebra I-II.
You find a handout with the needed facts (without proofs, and to be updated!) in uni2work.
Language (Sprache):
English.
Exam (Prüfung):
There will be a written exam (Es wird eine schriftliche Klausur
geben).
There will be a written re-exam (Es wird eine schriftliche Nachklausur
geben).
All information in uni2work.
Content (Inhalt):
- Introduction and Motivation
- Transport Equations
- The Laplace and Poisson Equations
2.1 Boundary Value Problems
2.2 Gauß, Green & Spherical Means
2.3 Mean Value Properties, Maximum Principles & Harnack
2.4 Regularity & A Priori Estimates
2.5 Green's Function & Poisson's Kernel
2.6 Existence: Perron's Method
2.7 The Poisson Equation
2.8 Energy Methods - The Heat Equation
3.1 Initial Value Problems
3.2 Mean Value Property, Maximum Principle & Uniqueness
3.3 Regularity & A Priori Estimates
3.4 Energy Methods - The Wave Equation
4.1 R^1 (d'Alembert) & half-line
4.2 Spherical Means & R^3 (Kirchhoff)
4.3 Method of Descent & R^2 (Poisson)
4.4 General R^d: Odd & Even d
4.5 Huygens' Principle & Finite Propagation Speed
4.6 Nonhomogeneous Problem (Duhamel)
4.7 Energy Methods - Fourier Transform and PDE
Method of Characteristics
Literature:
In uni2work
you will find a copy of the notes from the lecture (to be updated as we go
along).
Above you will find a short
list of content of the lecture.
The lecture will mainly follow the books by Evans, and Arendt & Urban
mentioned below.
(Auf uni2work
wird es eine Mitschrift der Vorlesung geben. Oben eine Kurzübersicht der
Vorlesung.
Die Vorlesung wird
größtenteils auf folgenden zwei Büchern (von denen mehrere Exemplare
in der Bibliothek vorhanden sind) basieren:)
- [E] L. C. Evans, Partial Differential Equations: Second Edition, AMS, Providence, RI, 2010. (Extracts available online in uni2work!)
- [A-U] W. Arendt, K. Urban, Partielle Differenzialgleichungen, Springer Spektrum, 2018. (Login with your Campus-account.)
Supplementary literatur (Ergänzende Literatur):
- E. DiBenedetto, Partial Differential Equations (2nd edition), Birkhäuser Cornerstones, 2010.
- M. Renardy, R.C. Rogers, An Introduction to Partial Differential Equations, Springer, 2004. (NOT available online!)
- J. Jost, Partial Differential Equations, Springer, 2013.
- B. Schweizer, Partielle Differentialgleichungen, 2. Auflage, Springer Spektrum, 2018.
- F. John, Partial Differential Equations,Springer, 1982. (NOT available online!)
- J. Rauch, Partial Differential Equations, Springer, 1991.
- G.B. Folland, Introduction to Partial Differential Equations, Second Edition, Princeton University Press, 1995.
- P.J. Olver, Introduction to Partial Differential Equations, Springer, Cham, 2014.
- Q. Han, A Basic Course in Partial Differential Equations, AMS, 2011.
- W. Craig, A Course on Partial Differential Equations, AMS, 2018.
Here
a longer liste.
Office hours (Sprechstunde):
See uni2work.
-----------------------------------
Letzte Änderung: 15 February 2023 (
No more updates
).
Thomas Østergaard Sørensen