4 papers
New properties of Cauchy and event horizons
Robert Budzynski, Witold Kondracki, Andrzej Krolak
We present several recent results concerning Cauchy and event horizons. In the first part of the paper we review the differentiablity properties of the Cauchy and the event horizon…
Remarks on tree-level topological string theories
Robert J. Budzynski
A few observations concerning topological string theories at the string-tree level are presented: (1) The tree-level, large phase space solution of an arbitrary model is expressed…
Quantum Principal Fiber Bundles: Topological Aspects
R. J. Budzynski, W. Kondracki
We introduce the notion of locally trivial quantum principal bundles. The base space and total space are compact quantum spaces (unital -algebras), the structure group i…
Quantum Spaces: Notes and Comments on a Lecture by S. L. Woronowicz
R. J. Budzynski, W. Kondracki
These notes are based on a lecture given by S. L. Woronowicz at the Institute of Mathematics, Polish Academy of Sciences.