Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Aldecoa R"'
Autor:
Richard, S., de Aldecoa, R. Tiedra
We present a new technique to obtain polynomial decay estimates for the matrix coefficients of unitary operators. Our approach, based on commutator methods, applies to nets of unitary operators, unitary representations of topological groups, and unit
Externí odkaz:
http://arxiv.org/abs/2109.00108
Autor:
Alvarado-Rodríguez, J. Fernando, Calderon-Aguilera, Luis E., Cabral-Tena, Rafael A., Norzagaray-López, C. Orión, Nava, Héctor, Peiffer, Loïc, Fernández-Aldecoa, R. Gerardo
Publikováno v:
In Journal of Experimental Marine Biology and Ecology December 2022 557
We perform the scattering analysis of the evolution operator of quantum walks with an anisotropic coin, and we prove a weak limit theorem for their asymptotic velocity. The quantum walks that we consider include one-defect models, two-phase quantum w
Externí odkaz:
http://arxiv.org/abs/1801.02779
We perform the spectral analysis of the evolution operator U of quantum walks with an anisotropic coin, which include one-defect models, two-phase quantum walks, and topological phase quantum walks as special cases. In particular, we determine the es
Externí odkaz:
http://arxiv.org/abs/1703.03488
Publikováno v:
Phys. Rev. E 92, 022816 (2015)
Nodes in real-world networks are repeatedly observed to form dense clusters, often referred to as communities. Methods to detect these groups of nodes usually maximize an objective function, which implicitly contains the definition of a community. We
Externí odkaz:
http://arxiv.org/abs/1503.00445
Autor:
Tiedra de Aldecoa, R.
Publikováno v:
In Journal of Functional Analysis 15 October 2020 279(7)
Autor:
Cecchi, P. A., de Aldecoa, R. Tiedra
We consider in this note Furstenberg transformations on Cartesian products of infinite-dimensional tori. Under some appropriate assumptions, we show that these transformations are uniquely ergodic with respect to the Haar measure and have countable L
Externí odkaz:
http://arxiv.org/abs/1501.06245
Autor:
Richard, S., de Aldecoa, R. Tiedra
For the scattering system given by the Laplacian in a half-space with a periodic boundary condition, we derive resolvent expansions at embedded thresholds, we prove the continuity of the scattering matrix, and we establish new formulas for the wave o
Externí odkaz:
http://arxiv.org/abs/1412.0990
Autor:
Richard, S., de Aldecoa, R. Tiedra
We present an inversion formula which can be used to obtain resolvent expansions near embedded thresholds. As an application, we prove for a class of quantum waveguides the absence of accumulation of eigenvalues and the continuity of the scattering m
Externí odkaz:
http://arxiv.org/abs/1402.0373
Autor:
Fernández-Aldecoa, R. G., Ladah, L. B., Morgan, S. G., Dibble, C. D., Solana-Arellano, E., Filonov, A.
Publikováno v:
Marine Ecology Progress Series, 2019 Aug . 625, 15-26.
Externí odkaz:
https://www.jstor.org/stable/26836802