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- Max Planck Institute for Gravitational PhysicsDE5 papers
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- Universidad de Buenos AiresAR4 papers
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22 papers · 1 filter
Asymptotic properties of groups acting on complexes
Gregory C. Bell
We examine asymptotic dimension and property A for groups acting on complexes. In particular, we prove that the fundamental group of a finite, developable complex of groups will ha…
Some recent developments in gamma-ray burst afterglow and prompt emission models
Bing Zhang, Peter Meszaros, Junfeng Wang
Extensive observational campaigns of afterglow hunting have greatly enriched our understanding of the gamma-ray burst (GRB) phenomenon. Efforts have been made recently to explore s…
Feeding the active nucleus of NGC 1097
Thaisa Storchi-Bergmann, Rodrigo Nemmen da Silva, Michael Eracleous
We discuss the signatures of an evolving accretion disk around the nucleus of NGC 1097, based on observations of its double-peaked H-alpha emission-line profile which cover a time…
Complex powers and non-compact manifolds
Bernd Ammann, Robert Lauter, Victor Nistor +1
We study the complex powers of an elliptic, strictly positive pseudodifferential operator using an axiomatic method that combines the approaches of Guillemin and Seeley…
Phenomenology of Non-Commutative Field Theories
Stephen Godfrey, M. A. Doncheski
We study the effects of non-commutative QED (NCQED) in fermion pair production, gamma + gamma to f + \bar{f} and Compton scattering, e + gamma to e + gamma. Non-commutative geometr…
The Phonon Drag Effect in Single-Walled Carbon Nanotubes
V. W. Scarola, G. D. Mahan
A variational solution of the coupled electron-phonon Boltzmann equations is used to calculate the phonon drag contribution to the thermopower in a 1-D system. A simple formula is…