Jefferson Antonio Galves, Brazilian mathematician (São Paulo 18 June 1947 – Recognized as one of world leaders in research about Markovian systems of particles ACHIEVEMENTS With F. Bertein. Une classe de systems de particules stable par association. Probab. Theory Relat. Fields 41(1):7385, 1977 First to formulate and solve the problem of hydrodynamic behavior of a Markovian system With C. Kipnis, C. Marchioro & E. Presutti. Non equilibrium measures which exhibit a temperature gradient: study of a model. Comm. Math. Physics 81:12747, 1981
First to formulate and solve the problem of metastable behavior of stochastic processes With M. Cassandro, E. Olivieri & M.E. Vares. Metastable behavior of stochastic dynamics: a pathwise approach. J. Stat. Phys. 35:60334, 1984 Proved that the sequence of successive entrance times in a small neighborhood converges in law when suitably normatized to a homogeneous Poisson point process. With P. Collet. Statistics of close visits to the indifferent fixed point of an interval map. J. Statis. Physics 72(34):45978, 1993 Obtained the first convergent result for exponential law of occurrence time of rare event in a conservative system With P. Collet & A. Lopes. Maximum likelihood and minimum entropy identification of grammars. Random and Computational Dynamics. 3:24156, 1995 Proved that the entrance time into a small interval is asymptotically exponentially distributed (1995) With J. Garcia & U. Gut. Vocale – a semiautomatic annotation tool for prosodic research (2002) Introduced the function sonority as an index of the local regularity of the speech signal With J. Garcia, D. Duarte & C. Galves. Sonority as a basis for rhythmic class discrimination (2002) With M. Cassandro, P. Collet, D. Duarte & J. Garcia. An universal linear relation among acoustic correlates of rhythm (2003) Presented a new class of random fields which are the variable neighborhood random fields With M. Cassandro & E. Locherbach. Partially observed Markov random fields are variable neighborhood random fields. J. Statis. Phys. 147(4):79507, 2012 With Eva Locherbach developed GalvesLocherbach model for spiking neurons With E. Löcherbach. Infinite Systems of Interacting Chains with Memory of Variable Length  A Stochastic Model for Biological Neural Nets". Journal of Statistical Physics, 151(5): 896–921, 2013 Introduced a notion of sensitivity of the contact process to its initial condition With M. Cassandro & E. Locherbach. Information transmission and criticality in the contact process. J. Statis. Physics 168(6):118090, 2017 With E. Locherbach, C. Pouzat & E. Presutti. A system of interacting neurons with short term plasticity (2019) OTHER CONTRIBUTIONS With E. Presutti. Edge fluctuations for the one dimensional supercritical contact process. Ann. Probab. 15:113145, 1987 With E. Presutti. Travelling wave structure of the one dimensional contact process. Stoch. Process Appl. 25:15363, 1987 ALGORITHMS, MODELS AND OTHERS With A. Duarte, R. Fraiman, G. Ost & C. Vargas. Context tree selection for functional data (2016) With A. Garivier & E. Gassiat. Joint estimation of intersecting context tree models. Scand. J. Statis. 40 (2013) With N.L. Garcia, E. Locherbach & E. Orlandi. Kalikowtype decomposition for multicolor infinite range particle system. Ann. Appl. Probability 23(4):162959, 2013 With C. Galves, J.E. Garcia, N.L. Garcia & F. Leonardi. Context tree selection and linguistic rhythm retrieval from written texts. Ann. Appl. Statis. 6(1):186209, 2012 With E. Locherbach & E. Orlandi. Perfect simulation of infinite range Gibbs measures and coupling with their finite range approximations. J. Statis. Phys. 138(13):47695, 2010 With M. Cassandro, P. Collet, D. Duarte & J. Garcia. A stochastic model for the speech sonority. Mathem. Sci. Hum. (2007) With J.A. CuestaAlbertos, R. Fraiman, J. Garcia & M. Svarc. Identifying rhythmic classes of languages using their sonority: a KolmogorovSmirnov approach. J. Appl. Stastis. 34(6):74961, 2007 With F. Leonardi. Sequence motif identification and protein family classification using probabilistic trees (2005) With M. Abadi. A version of Maurer’s conjecture for psimixing processes. Nonlinearity 17(4):135766, 2004 With D. Duarte, N. Lopes & R. Maronna. The statistical analysis of acoustic correlates of speech rhythm. Rhyth. Patt. Param. Sett. Lang. Change (2001)

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