Dirac algebroid formed by General Relativity’s constraints
Seminar 1) Interplay between foliations and algebroids
Seminar 2) Combinatorial improvements in understanding of Dirac-type Algorithms for constrained systems.
Seminar 3) Using differential geometric flow methods to better understand the subsequent Problem of Observables
Seminar 4) how deriving spacetime from space rests on cohomology
Abstract We apply Shape Theory and Order Theory to spaces of graphs. We concentrate onsmall examples which are minimal for exhibiting various nontrivialities.
Abstract We consider the sense in which Dirac brackets are projections of Poisson brackets. In the process, we define a Dirac tensor, a Dirac projector and a Dirac–Jacobi tensor.