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6 papers · 2 filters
On the Standard Approach to Renormalization Group Improvement
F. A. Chishtie, V. Elias, R. B. Mann +2
Two approaches to renormalization-group improvement are examined: the substitution of the solutions of running couplings, masses and fields into perturbatively computed quantities…
Note on counterterms in asymptotically flat spacetimes
Dumitru Astefanesei, Robert B. Mann, Cristian Stelea
We consider in more detail the covariant counterterm proposed by Mann and Marolf in asymptotically flat spacetimes. With an eye to specific practical computations using this counte…
Nonabelian solutions in AdS_4 and d=11 supergravity
Robert B. Mann, Eugen Radu, D. H. Tchrakian
We consider solutions of the four dimensional Einstein-Yang-Mills system with a negative cosmological constant , where is the nonabelian gauge coupling constant. This…
Black string solutions with negative cosmological constant
Robert B. Mann, Eugen Radu, Cristian Stelea
We present arguments for the existence of new black string solutions with negative cosmological constant. These higher-dimensional configurations have no dependence on the `compact…
On black strings & branes in Lovelock gravity
David Kastor, Robert Mann
It is well known that black strings and branes may be constructed in pure Einstein gravity simply by adding flat directions to a vacuum black hole solution. A similar construction…
Thermodynamics of Rotating Charged Black Branes in Third Order Lovelock Gravity and the Counterterm Method
M. H. Dehghani, R. B. Mann
We generalize the quasilocal definition of the stress energy tensor of Einstein gravity to the case of third order Lovelock gravity, by introducing the surface terms that make the…