lepl1103  2020-2021  Louvain-la-Neuve

Due to the COVID-19 crisis, the information below is subject to change, in particular that concerning the teaching mode (presential, distance or in a comodal or hybrid format).
5 credits
30.0 h + 30.0 h
Q1
Language
French
Prerequisites
This course assumes acquired basic notions of mathematics targeted by courses LEPL1102 and LEPL1105.

The prerequisite(s) for this Teaching Unit (Unité d’enseignement – UE) for the programmes/courses that offer this Teaching Unit are specified at the end of this sheet.
Content
Partial differential equations (PDE) :
1st and 2nd order PDE: presentation, classification (hyperbolic, parabolic, elliptic) and links with physical phenomena (transport equation, wave equation, diffusion equation, Laplace's equation, Poisson's equation), Cauchy problem and method of characteristics for hyperbolic PDE, initial and/or boundary conditions (Dirichlet, Neumann, Robin), solutions in infinite domain (by Green's functions)  for the diffusion equation, and for Poisson's equation.
self-adjoint operators, eignevalues and eigenfunctions, orthogonality of eigenfunctions. Developpement of functions in series of eigenfunctions. Helmholtz problem. Bessel functions of the 1st and 2nd kind.
Method of separation of variables for problems in infinite domain: Laplace's equation in 2-D (rectangle, circle, annulus, sector of circle or annulus) ; wave equation in 1-D and in 2-D, diffison equation in 1-D and in 2-D.
Similarity solutions for the diffusion equation in 1-D semi-infinite domain.
Functions of a complex variable, f(z) :
Recall the complex plane and the complex numbers.
Definition of elementary functions: za, exp(z), log(z), az, sin(z), sinh(z), arcsin(z), etc.
Branch point(s) and branch cut(s), Riemann surface(s).
Limits and continuity, derivability, holomorphic (analytic) functions, entire functions, Cauchy-Riemann equations and links with Laplace's equation.
Integration, Cauchy theorem and consequences: Cauchy integral formula, Taylor and Laurent series, poles, residue(s) theorem.
Evaluation of definite integrals (also using Jordan's lemma).
Introduction to conformal transformations and examples of applications.
Teaching methods

Due to the COVID-19 crisis, the information in this section is particularly likely to change.

The course is organized in 12 courses (CM1 to CM12), given in a large auditorium, and into 12 sessions of « learning through exercises » (APE1 to APE12) that are realized, in part, in tutored groups (with one assistant-tutor per group) and, for the rest, out of the tutored groups.
Evaluation methods

Due to the COVID-19 crisis, the information in this section is particularly likely to change.

The students are evaluated individually, with a written exam.
The APE (APE1 to APE12) are not graded, but  solutions are put on the Moodle site. This too allows the students to continiously evaluate their level of comprehension and acquisition of competences
Online resources
https://www.moodleucl.uclouvain.be
Bibliography
Partie EDP :
J.-F. Remacle et G. Winckelmans, syllabus « LEPL1103: Support partiel pour la partie ésuations aux dérivées partielles (EDP)", notes complémentaires : « Modèle LWR du traffic routier », « Fonctions de Bessel de 1ère et de 2ème espèces », « Méthodes de résolution de l'équation de diffusion ».
Ouvrage de références: Richard Haberman , « Elementary Applied Partial Differential Equations: with Fourier Series and Boundary Value Problems », Prentice Hall.
Partie Analyse complexe :
G. Winckelmans et J.-F. Remacle :  notes complémentaires : « Lemmes de Jordan ».
Ouvrages de références : Stephen D. Fisher , « Complex Variables » , Dover (fortement recommandé) ; Georges F. Carrier, M. Krook, Carl E. Pearson, « Functions of a Complex Variable : Theory and Practice » , Hod Books.
Les documents du cours (syllabus, notes complémentaires, énoncés et solutions des APE, énoncé et solution de l'évaluation intermédiaire (le cas échéant) sont mis à disposition sur le site Moodle du cours.
Faculty or entity
Force majeure
Teaching methods
Depending on the sanitary situation, the lectures and APEs are given in "co-modal mode" (alternating weeks with physical presence and without, using Teams), or fully remotely using Teams
Evaluation methods
The written individual exam is organized remotely. The covered course content remains unchanged. The questions can by open questions (with development) and MCQ.

#### Programmes / formations proposant cette unité d'enseignement (UE)

Title of the programme
Sigle
Credits
Prerequisites
Aims
Bachelier en sciences de l'ingénieur, orientation ingénieur civil 