Book Review: Four Lectures on Wave Mechanics

Lectures on Mechanics

Lectures on Theoretical Mechanics

Lectures on Four -

I give an elementary introduction to the theory of four-manifold invariants and its relation with topological eld theory. I review the recent developments in the theory of Donaldson and Seiberg-Witten invariants. Why another set of lectures on four-manifolds and topological eld theory? Apart from the contractual obligations imposed upon the lecturer there might be some justiication in the follo...

Lectures on Mechanics Second Edition

Lectures on Wave Equation

This is a note for the lectures given on Oct. 21st and 23rd, 2014 in lieu of D. Tataru, for the course MAT222 at UC Berkeley. 1. Wave equation The purpose of these lectures is to give a basic introduction to the study of linear wave equation. Let d ≥ 1. The wave operator, or the d’Alembertian, is a second order partial differential operator on R defined as (1.1) := −∂ t + ∂ x1 + · · ·+ ∂ xd = −...