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gr-qc2000
2d quantum gravity with torsion, dilaton theory and black hole formation
Wolfgang Kummer
Starting from the work of the author in 1990 with different collaborators, essential progress in 2d gravity theories has been made. Now all such theories (and not only certain spec…
gr-qc2000
Hawking radiation and Hawking flux from spherical reduction
W. Kummer, D. V. Vassilevich
Using heat kernel techniques we show that the relation between Hawking temperature and radiation flux known from Einstein gravity in D dimensions can be reproduced from the spheric…
hep-th2000
Open strings, Born--Infeld action and the heat kernel
W. Kummer, D. V. Vassilevich
In the derivation of the Born-Infeld action for the case with a nontrivial boundary of the string world sheet the appearance of a new term changes the conformal anomaly. This may h…