Introduction to partial differential equations
Summary
This is an introductory course on Elliptic Partial Differential Equations. The course will cover the theory of both classical and generalized (weak) solutions of elliptic PDEs.
Content
- Laplace equation; mean value property; maximum principle; fundamental solution; Dirichlet problem; Poisson integral and Newtonian potential; regularity theory in Holder spaces;
- General second order linear elliptic equations; maximum principle; a priori bounds;
- Sobolev spaces; weak derivatives and their properties; density results; extension results; traces; imbedding theorems; Poincaré inequalities;
- Weak solutions of general elliptic equations; Lax Milgram theorem; existence and uniqueness results; regularity theory in Sobolev spaces; compactness results and non coercive problems;
Learning Prerequisites
Required courses
Analysis I-IV
Recommended courses
Measure and Integration; Functional Analysis I
Learning Outcomes
By the end of the course, the student must be able to:
- Classify different types of PDEs
- Define different notions of solutions
- Analyze the properties of solutions of PDEs
- Prove existence and regularity results of solutions of elliptic PDEs
Transversal skills
- Use a work methodology appropriate to the task.
- Demonstrate a capacity for creativity.
- Demonstrate the capacity for critical thinking
Teaching methods
Ex cathedra lectures, exercises in classroom
Assessment methods
Oral exam
Dans le cas de l'art. 3 al. 5 du Règlement de section, l'enseignant décide de la forme de l'examen qu'il communique aux étudiants concernés
Resources
Virtual desktop infrastructure (VDI)
No
Bibliography
- David Gilbarg, Niel S. Trudinger, Elliptic Partial Differential Equations of Second Order, Springer-Verlag, 2nd edition, 2001.
- Lawrence C. Evans. Partial Differential Equations, AMS-Graduate Studies in Mathematics, 2nd edition, 2010.
- Haïm Brézis, Functional Analysis, Sobolev Spaces and Partial Differential Equations, Springer, 2011
- Fritz John, Partial Differential Equations, Springer-Verlag, 4th edition, 1982
Ressources en bibliothèque
- Partial Differential Equations / Fritz John
- Elliptic Partial Differential Equations of Second Order / David Gilbarg & Niel S. Trudinger
- Partial Differential Equations / Lawrence C. Evans
- Functional Analysis, Sobolev Spaces and Partial Differential Equation / Haïm Brézis
Notes/Handbook
Lecture notes available on the webpage
Moodle Link
Prerequisite for
- Master courses on theory of PDEs: Equations aux dérivées partielles d'évolution, Calculus of variations, Optimal Transport, Dispersive PDEs, Theory of stochastic calculus, Nonlinear Schrödinger equations, Distributions and interpolation spaces; Introduction to general relativity; Introduction to stochastic PDEs
- Bachelor / Master courses on numerical approximation of PDEs: Numerical Approximation of PDEs; Numerical methods for conservation laws; Computational finance; Numerical integration of stochastic differential equations; Numerics for fluids, structures & electromagnetics;
In the programs
- Semester: Fall
- Exam form: Oral (winter session)
- Subject examined: Introduction to partial differential equations
- Courses: 2 Hour(s) per week x 14 weeks
- Exercises: 2 Hour(s) per week x 14 weeks
- Type: optional
Reference week
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