Salta al contenuto principale della pagina

## MATEMATHICAL PHYSICS

CODICE 66176 2022/2023 6 cfu al 1° anno di 9268 YACHT DESIGN(LM-34) - LA SPEZIA MAT/07 Inglese LA SPEZIA 2° Semestre AULAWEB

## PRESENTAZIONE

The course aims to provide a presentation of the most common partial differential equations (PDE) and their  solution techniques through an analysis of various applications. The emphasis is  devoted to  second order PDE and the understanding of the specific techniques  for  elliptic, parabolic and hyperbolic cases.

## OBIETTIVI E CONTENUTI

### OBIETTIVI FORMATIVI

The unit deals with the most important partial differential equations through their most important mathematical physical in the pleasure of craft sector.

### OBIETTIVI FORMATIVI (DETTAGLIO) E RISULTATI DI APPRENDIMENTO

Active participation in lectures and individual study will enable the student to:

- be able to classify the main partial differential equations;

- calculate the analytical solution of partial differential equations of elliptic, parabolic and hyperbolic types;

- use the techniques of separation of variables, series and Fourier transform, special functions.

### MODALITA' DIDATTICHE

The module is based on theoretical lessons.

### PROGRAMMA/CONTENUTO

Introduction  to  partial differential equations (PDE). The elastic string  and the transition from discrete systems to continuous systems .
2 . The differential equations of the second order. The classification and the normal form; elliptic , hyperbolic and parabolic  PDE.
3 . Elliptic equations. The harmonic functions. The problems of Dirichelet and Neuman , The Poisson formula for the circle.
4 . The variable separation technique. The series and the Fourier transform . The Gibbs effect, the analysis of normal modes , the delta Dirac "function”.

5 . The Bessel functions, the problems in polar coordinates.
6 . The parabolic differential equations, diffusion and heat  equations; descriptions in the domain of space and time.
7 . The hyperbolic equations: the equation of D' Alembert. The method of characteristics, the elastic membrane, the mechanical interpretation of the normal modes
8 . PDE of higher order: the biharmonic equation, its Cauchy problem. The vibration of bars and plates.

### TESTI/BIBLIOGRAFIA

• A.N.Tichonov, A.A.Samarskij: Equazioni della Fisica matematica, Problemi della fisica matematica, Mosca,1982;
• R. Courant, D. Hilbert, Methods of Mathematical Phisics vol I e II, Interscience, NY, 1973;
• R. Bracewell, The Fourier Transform and Its Applications, New York: McGraw-Hill, 1999;
• P. V. O’ Neil, Advanced engineering mathematica, Brooks Cole, 2003;
• H. Goldstein, Meccanica Classica, Zanichelli, Bologna, 1985;
• V. I. Smirnov. Corso di Matematica superiore, Vol. 3. MIR (1978).

## LEZIONI

### INIZIO LEZIONI

https://corsi.unige.it/9268/p/studenti-orario

### Orari delle lezioni

L'orario di tutti gli insegnamenti è consultabile su EasyAcademy.

## ESAMI

### MODALITA' D'ESAME

Examinations are oral. Some mandatory exercizes can be requested.

### MODALITA' DI ACCERTAMENTO

The examination mode consists of an oral test to ensure learning of the course content.

### Calendario appelli

Data Ora Luogo Tipologia Note