"The book first introduces the notion of Dirichlet brane in the context of topological quantum field theories, and then reviews the basics of string theory. After showing how notions of branes arose in string theory, it turns to an introduction to the algebraic geometry, sheaf t…
E. Klein présente les différentes théories scientifiques sur l'origine de l'univers. Il interroge ces modèles cosmologiques actuels et montre qu'ils ne décrivent que des métamorphoses, des structurations, mais sont encore incapables de saisir le passage de l'absence de toute cho…
The discovery by Green and Schwarz in 1984 that ten-dimensional superstring theory is anomaly-free and finite only if the Yang-Mills gauge group is SO(32) or E8 x E8 has made the phenomenological possibilities of superstrings evident. This has resulted in a sudden surge of inter…