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Cosmological horizons, Noether charges and entropy
(IOP Publishing, 2019-07-23)
It has recently been shown that, in the vicinity of their event horizons, black holes exhibit an infinite-dimensional symmetry. This symmetry captures relevant physical information about the black hole, and in particular ...
Horizon symmetries and hairy black holes in AdS
(Springer, 2020-09)
We investigate whether supertranslation symmetry may appear in a scenario that involves black holes in AdS space. The framework we consider is massive 3D gravity, which admits a rich black hole phase space, including ...
Métodos no estándar en el problema de la parada óptimaMétodos no estándar en el problema de la parada óptima
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 1998)
Black hole memory effect
(American Physical Society, 2018-12)
We compute the memory effect produced at the black hole horizon by a transient gravitational shock wave. As shown by Hawking, Perry, and Strominger (HPS) such a gravitational wave produces a deformation of the black hole ...
Robust model predictive controller with output feedback and target tracking
(Institute of Electrical and Electronics Engineers, 2010-10)
A model predictive controller (MPC) is proposed, which is robustly stable for some classes of model uncertainty and to unknown disturbances. It is considered as the case of open-loop stable systems, where only the inputs ...
Modular Hamiltonians on the null plane and the Markov property of the vacuum state
(IOP Publishing, 2017-08-08)
We compute the modular Hamiltonians of regions having the future horizon lying on a null plane. For a CFT this is equivalent to regions with a boundary of arbitrary shape lying on the null cone. These Hamiltonians have a ...
De Armorum Vita
(Universidad Complutense de MadridEspaña, 2003)
Las armas están unidas desde su origen al orden y su historia porque ellas han sido el amparo ante feroces seres y la naturaleza acechante, sirviéndole como respuesta imprescindible a la debilidad de sus manos y su cuerpo. ...
The Value of Observing the Buyer Arrival Time in Dynamic Pricing
(2020)
We consider a dynamic pricing problem where a firm sells one item to a single buyer in order to maximize expected revenues. The firm commits to a price function over an infinite horizon. The buyer arrives at some random ...
Quaternary paleoecology of Fuego-PatagoniaQuaternary paleoecology of Fuego-Patagonia
(Instituto Geológico, Secretaria do Meio Ambiente, São Paulo, 1994)
Robust model predictive control with Zone Control
(Institute of Electrical and Electronics Engineers, 2009-01)
Model predictive control (MPC) is usually implemented as a control strategy where the system outputs are controlled within specified zones, instead of fixed set points. One strategy to implement the zone control is by means ...