Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Pinho, S. T."'
The effective reproduction number, R(t), is a central point in the study of infectious diseases. It establishes in an explicit way the extent of an epidemic spread process in a population. The current estimation methods for the time evolution of R(t)
Externí odkaz:
http://arxiv.org/abs/2102.12637
Akademický článek
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A theoretical framework is developped leading to a sound derivation of Periodic Boundary Conditions (PBCs) for the analysis of domains smaller then the Unit Cells (UCs), named reduced Unit Cells (rUCs), by exploiting non-orthogonal translations and s
Externí odkaz:
http://arxiv.org/abs/1012.3133
Autor:
Santos, L. B. L., Costa, M. C., Pinho, S. T. R., Andrade, R. F. S., Barreto, F. R., Teixeira, M. G., Barreto, M. L.
The transmission of vector infectious diseases, which produces complex spatiotemporal patterns, is analyzed by a periodically forced two-dimensional cellular automata model. The system, which comprises three population levels, is introduced to descri
Externí odkaz:
http://arxiv.org/abs/0810.0384
Tumor growth has long been a target of investigation within the context of mathematical and computer modelling. The objective of this study is to propose and analyze a two-dimensional probabilistic cellular automata model to describe avascular solid
Externí odkaz:
http://arxiv.org/abs/0806.1063
Publikováno v:
Braz. J. Phys. 30, 741 (2000)
We review recent investigations of the critical behavior of ferromagnetic $q$-state Potts models on a class of hierarchical lattices, with exchange interactions according to some deterministic but aperiodic substitution rules. The problem is formulat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009135
Publikováno v:
Phys. Rev. E 61, 3330 (2000)
We investigate the effects of geometric fluctuations, associated with aperiodic exchange interactions, on the critical behavior of $q$-state ferromagnetic Potts models on generalized diamond hierarchical lattices. For layered exchange interactions ac
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910406
We report some numerical simulations to investigate the existence of a self-organized critical (SOC) state in a random-neighbor version of the OFC model for a range of parameters corresponding to a non-conservative case. In contrast to a recent work,
Externí odkaz:
http://arxiv.org/abs/adap-org/9711002
We write exact renormalization-group recursion relations for nearest-neighbor ferromagnetic Ising models on Migdal-Kadanoff hierarchical lattices with a distribution of aperiodic exchange interactions according to a class of substitutional sequences.
Externí odkaz:
http://arxiv.org/abs/cond-mat/9709303
We write exact renormalization-group recursion relations for a ferromagnetic Ising model on the diamond hierarchical lattice with an aperiodic distribution of exchange interactions according to a class of generalized two-letter Fibonacci sequences. F
Externí odkaz:
http://arxiv.org/abs/cond-mat/9706234