IntroductionCurrently the problem of transferring results of algebraic topology to discrete objects and, in particular, to various categories of digraphs and graphs, is widely investigated. The main technical tools are given by the homotopy theory and various homology theories. We present the basic methods of algebraic topology in graph theory and describe relations between continious and discr...
AbstractFollowing a brief introduction to complex manifolds, the course will explore connections between general relativity, the Einstein equation,and complex geometry. Among the topics I would like to cover are manifestations of Kähler and Hermitian geometry in general relativity, as well as twistor theory and its applications in general relativity and field theory. The course will be accessib...