Zobrazeno 1 - 10
of 186
pro vyhledávání: '"P. R. VILELA"'
Autor:
Eleutério, Samuel, Mendes, R. Vilela
Brownian and fractional processes are useful computational tools for the modelling of physical phenomena. Here, modelling linear homopolymers in solution as Brownian or fractional processes, we develop a formalism to take into account both the intera
Externí odkaz:
http://arxiv.org/abs/2408.11503
Autor:
Mendes, R. Vilela
When spacetime is considered as a subspace of a wider complex spacetime manifold, there is a mismatch of the elementary linear representations of their symmetry groups, the real and complex Poincar\'{e} groups. In particular, no spinors are allowed f
Externí odkaz:
http://arxiv.org/abs/2408.08839
Autor:
Mendes, R. Vilela
Publikováno v:
Modern Physics Letters A 38, 2350165 (2023)
It is argued, as a working hypothesis, that "normal" and dark matter interactions can only be T and CP violating. One way to implement this idea is to consider that time reversal in dark matter is implemented, not by an antiunitary operator, but by a
Externí odkaz:
http://arxiv.org/abs/2303.16586
Autor:
Mendes, R. Vilela
Publikováno v:
Communications in Nonlinear Science and Numerical Simulation 125 (2023) 107406
The technique of stochastic solutions, previously used for deterministic equations, is here proposed as a solution method for partial differential equations driven by distribution-valued noises.
Comment: 16 pages Latex, 3 figures
Comment: 16 pages Latex, 3 figures
Externí odkaz:
http://arxiv.org/abs/2207.04077
Autor:
Mendes, R. Vilela
Publikováno v:
International Journal of Theoretical and Applied Finance 26, 2350010 (2023)
The question of the volatility roughness is interpreted in the framework of a data-reconstructed fractional volatility model, where volatility is driven by fractional noise. Some examples are worked out and also, using Malliavin calculus for fraction
Externí odkaz:
http://arxiv.org/abs/2206.02205
Autor:
Mendes, R. Vilela
Publikováno v:
Statistics and Probability Letters 208 (2024) 110077
The distributional support of the sample paths of L\'evy processes is an important issue for the construction of sparse statistical models, theories of integration in infinite dimensions and the existence of generalized solutions of stochastic partia
Externí odkaz:
http://arxiv.org/abs/2205.03816
Autor:
Araújo, Tanya, Mendes, R. Vilela
Publikováno v:
Advances in Complex Systems Vol. 25, No. 07, 2250009 (2022)
Long range connections play an essential role in dynamical processes on networks, on the processing of information in biological networks, on the structure of social and economical networks and in the propagation of opinions and epidemics. Here we re
Externí odkaz:
http://arxiv.org/abs/2203.07985
Autor:
Mendes, R. Vilela
Publikováno v:
International Journal of Modern Physics B 38, 2450143 (2024)
In Coulomb 3-body problems, configurations of close proximity of the particles are classically unstable. In confined systems they might however exist as excited quantum states. Quantum control of such states by time changing electromagnetic fields is
Externí odkaz:
http://arxiv.org/abs/2202.06361
Autor:
Mendes, R. Vilela
Publikováno v:
International Journal of Modern Physics A Vol. 37, No. 10 (2022) 2250057
The role of consistent measures in the rigorous construction of nonabelian lattice theories is analized. General conditions that measures must fulfill to insure consistency, positivity and a mass gap are obtained. The impact of nongeneric strata on t
Externí odkaz:
http://arxiv.org/abs/2201.04700
Autor:
Mendes, R. Vilela
Publikováno v:
International Journal of Quantum Information 19 (2021) 2150020
The two essential ideas in this paper are, on the one hand, that a considerable amount of the power of quantum computation may be obtained by adding to a classical computer a few specialized quantum modules and, on the other hand, that such modules m
Externí odkaz:
http://arxiv.org/abs/2101.03012