Caixa de texto: Sara Dimas Fernandes

Artigos em revistas de circulação internacional com arbitragem científica

 

Luís Mário Lopes, Sara Fernandes & Clara Grácio, Complete synchronization and delayed synchronization in couplings, Nonlinear Dynamics, Vol.76, No3. Springer, (2014), DOI 10.1007/s11071-014-1764-8.

 

Teresa M. Silva, Luís Silva & Sara Fernandes, Equilibrium distributions of discrete non-autonomous graphs, Journal of Difference Equations and Applications, 20:8, 1190-1200,(2014) , DOI: 10.1080/10236198.2014.902941

 

D. Fournier-Prunaret, J.L. Rocha, A. Caneco, S. Fernandes, C. Gracio, Synchronization and basins of synchronized states 2-dimensional piecewise maps issued of coupling between 3-pieces one-dimensional maps, Int. J. Bifurcation Chaos23, 1350134 (2013).

 

Fernandes S., Grácio C., Ramos C., Systoles in discrete dynamical systems, Journal of Geometry and Physics 63 (2013) 129–139.

 

Caneco, J. Leonel Rocha, C. Grácio and S. Fernandes, Some Conjectures About the Synchronizability and 
the Topology of Networks, in World Scientific Series on Nonlinear Science, Series B - Vol. 16, FRONTIERS IN THE STUDY OF CHAOTIC DYNAMICAL SYSTEMS WITH OPEN PROBLEMS, edited by Elhadj Zeraoulia (University of Tébessa, Algeria) & Julien Clinton Sprott (University of Wisconsin, Madison, USA), (2011).

 

Acilina Caneco, Clara Grácio, Sara Fernandes, J.L. Rocha,  Networks synchronizability, local dynamics and some graph invariants, DYNA’08 (editors Mauricio Peixoto, Alberto Pinto, David Rand). Springer (2011). ISBN: 978-3-642-11455-7.

 

Fernandes, S.; Grácio, C.; Ramos, C.C., Conductance in Discrete Dynamical Systems, Nonlinear Dynamics (2010) 61:435-442.

 

Caneco, A., Grácio C., Fernandes, S., Rocha, J.L., Ramos, C.C., Synchronizability and Graph Invariants, ISAST Transactions on Computers and Intelligent Systems, No. 2, Vol. 1, (2009).

 

Sara Fernandes, and J. Sousa Ramos, Second eigenvalue of transition matrix associated to iterated maps. Chaos, Solitons & Fractals 31 (2007) 316-326

 

Fernandes, S., Sousa Ramos, J., Conductance, Laplacian and mixing rate in discrete dynamical systems. Nonlinear Dynamics (2006) 44:117-126.

 

Sara Fernandes and J. Sousa Ramos, Spectral invariants of iterated maps of the interval. Grazer Mathematische Berichte, 346 (2004) 113-122.

 

Interesses científicos: sistemas dinâmicos, dinâmica simbólica; teoria da iteração, redes complexas, acoplamento e sincronização de redes, sistemas dinâmicos não autónomos.

 

Projectos científicos passados e em curso:

· "Dynamical Systems", FCT/CIMA-UE.

· Projecto nº POCI/MAT/60380/2004, Sistemas Dinâmicos Discretos de Baixa Dimensão e de Dimensão Infinita, financiado pela FCT. (coordenador: Pedro Martins Rodrigues, IST).

· Projecto nº PBIC/C/MAT/2145/95, “Equações de Schrodinger não lineares com campo magnético”, financiado pela ex-JNICT, tendo como Investigador responsável o Prof. José Ribeiro. Anos 1995/96.

· PROGRAMA PESSOA, GRICES, EGIDE, acções integradas de cooperação científica e técnica Luso-Francesas. Dinâmica Simbólica em iteradas de aplicações em espaços de dimensão n (n=2,3)

Investigadora da parte portuguesa do projecto.

Nome do investigador responsável da parte portuguesa: Clara Grácio

Instituições envolvidas: Universidade de Évora e L’Institut National dês Sciences Appliqués de Toulouse (INSA). Anos de execução: 2007/2009.

Actividade Científica

Comunicações orais por convite

 

Conductance and clique formation and its applications, Sara Fernandes, Thematic session Synchronization and Discrete Dynamics, DGS II 2013 - International Conference and Advanced School Planet Earth, Dynamics, Games and Science II, Lisbon, Portugal,
28 August to 6 September 2013.

 

Sobre a taxa de mixing, IPLeiria, 26 Novembro, 2º Dia Dinâmico/Seminário Multidisciplinar JSousa Ramos, 2010.

 

The systole in piecewise linear noncontinuous maps, joint work with Grácio, C. and Ramos, C.C., International Conference on Modeling, Optimization and Dynamics, Porto, July 2010.

 

Spectrum of the Markov matrix, mixing rate and mixing time in m-modal maps on the interval, PODE09, Bedlewo, Poland, 2009.

 

Spectral Theory and Discrete Dynamical Systems, Seminário do Centro de Análise, Geometria e Sistemas Dinâmicos, Departamento de Matemática do Instituto Superior Técnico, Lisboa, 31 Maio de 2005.

 

Teoria Espectral e Sistemas Dinâmicos Discretos, Seminário Conjunto do Centro de Investigação em Matemática e Aplicações e Departamento de Matemática da Universidade de Évora, 6 Outubro de 2005.

 

Second Smaller Zero of Kneading Determinant for Bimodal Maps, Ciclo de Seminários One Day Meeting, IST, Lisboa, 2004.

 

Outras comunicações orais

 

Luis Lopes, Sara Fernandes and Clara Grácio, Four different couplings and their windows of synchronization, International Workshop on Nonlinear Maps and their Applications - NOMA'13, Saragoza, September, 2013.

 

Susana Santos, Carlos Ramos, Manuel Branco, Sara Fernandes “Discrete Dynamical Systems and Numerical Semigroups”.Thematic session Discrete Dynamics and Numerical Semigroups, DGS II 2013 - International Conference and Advanced School Planet Earth, Dynamics, Games and Science II, Lisbon, Portugal,
28 August to 6 September 2013.

 

Teresa Silva, Luís Silva, Sara Fernandes, “About equilibrium distributions of discrete non autonomous systems”.Thematic session Discrete Dynamics and Numerical Semigroups, DGS II 2013 - International Conference and Advanced School Planet Earth, Dynamics, Games and Science II, Lisbon, Portugal,
28 August to 6 September 2013.

 

Luís Mário Lopes, Sara Fernandes and Clara Grácio, “’Linear couplings’, ’commanded cou- plings’ and their synchronization”.Thematic session Synchronization and Discrete Dynamics, DGS II 2013 - International Conference and Advanced School Planet Earth, Dynamics, Games and Science II, Lisbon, Portugal,
28 August to 6 September 2013.

 

 

Sara Fernandes, Danièle Fournier-Prunaret, Leonel Rocha, Acilina Caneco and Clara Grácio, Global synchronization in couplings of one-dimensional piecewise unimodal maps, European Conference on Iteration Theory, ECIT 2012, Açores, Portugal.

 

Luís Mário Lopes, Sara Fernandes and Clara Grácio, WINDOWS OF SYNCHRONIZATION, European Conference on Iteration Theory , ECIT 2012, Açores, Portugal.

 

Teresa Morais, Luís Silva and Sara Fernandes, Equilibrium distributions of non autonomous discrete dynamical systems, International Workshop on Nonlinear Maps and their Applications - NOMA'11, Portugal, September 15-16, 2011.

 

Caneco, A., Fernandes, S., Grácio, C., and Rocha, J.L., Topological entropy and conductance on complete clustered networks,

European Conference on Iteration Theory, September 12-17, 2010, Nantes, France.

 

Acilina Caneco, Sara Fernandes, Clara Grácio, and J. Leonel Rocha, Network synchronization interval and local Kolmogorov-Sinai entropy, accepted paper for oral presentation at the ECCS'10 main conference, ECCS’10 European Conference on Complex Systems, Lisbon, Portugal, September 13-17, 2010.

 

 

Fernandes S., Caneco A., Grácio C., Ramos C., Synchronization, coupling and mixing time in Markov maps, 15th International Conference on Difference Equations and Applications ICDEA 2009, Estoril, Portugal, October 2009.

 

Acilina Caneco, Clara Grácio, Sara Fernandes, J.L. Rocha and Carlos Ramos, Conditions for the formation of clusters depending on the conductance and the coefficient of clustering, INDS09. (2009).

 

Caneco, A., Grácio C., Ramos, C.C., Fernandes, S., Rocha, J.L., Relationship between the behaviour of entropy, the conductance and the coefficient of clustering of networks using symbolic dynamics, IEEE Workshop on Nonlinear Maps and Applications, Noma’09, 2009.

 

Caneco, C. Grácio, L.Rocha, S. Fernandes, On relationship between the synchronizability of a network and some graph invariants, Dynamics and Applications, Braga, 8-12 Sep 2008.

 

S. Fernandes, M. Tlemçani, Analysis of long time behaviour using symbolic dynamics, Dynamics and Applications, Braga, 8-12 Sep 2008.

 

M. Tlemçani, S. Fernandes, Analysis of a Non Linear Discrete Dynamical System, signal coding and reconstruction, comunicação em XIV International Conference on Difference Equations and Applications,ICDEA 2008, Istanbul, Turkey, 21-25 July 2008.

 

S. Fernandes, C. Grácio, C. Ramos, Systoles and topological entropy in discrete dynamical systems, , comunicação em XIV International Conference on Difference Equations and Applications, ICDEA 2008, Istanbul, Turkey, 21-25 July 2008.

 

Acilina Caneco, Sara Fernandes, Leonel Rocha e Clara Grácio, Graphs, Symbolics Dynamics and Synchronization of Networks, International Conference on Difference Equations and Applications, Lisbon, July 25 - July 30, 2007.

 

Acilina Caneco, Sara Fernandes, Clara Grácio and J. Leonel Rocha, Symbolic Dynamics and Networks Synchronization, IEEE WORKSHOP ON NONLINEAR MAPS AND APPLICATIONS (NOMA’07), LATTIS-INSA, TOULOUSE UNIVERSITY, FRANCE, DEC. 13-14, 2007.

 

Sara Fernandes and Sumitha Jayachandran, Conductance in Discrete Dynamical Systems, The Twelfth International Conference on Difference Equations and Applications (ICDEA07),July 23 - July 27, 2007, Lisbon, Portugal.

 

Sumitha Jayachandran, Sara Fernandes and J. Sousa Ramos, comunicated by Clara Grácio, Spectra of digraphs arising from discrete dynamical systems, European Conference on Iteration Theory, September 10 - 16, 2006, Gargnano, Italy.

 

Sara Fernandes, Clara Grácio, J. Sousa Ramos, "Laplacians and the Cheeger constants for discrete dynamical systems", Munich - Germany, International Conference on Difference Equations, Special Functions and Applications, July 25 - July 30, 2005.

 

Sara Fernandes, J. Sousa Ramos, "First eigenvalue of the Laplacian in Discrete Dynamical Systems", Batschuns - Austria, XV European Conference on Iteration Theory ECIT 2004, August 29 – September 4, 2004.

 

Sara Fernandes, J. Sousa Ramos,"Second Smaller Zero of Kneading Determinant", 8th International Conference on Difference Equations and Applications ICDEA 2003 - Brno, Czech Republic, July 2003.

 

Sara Fernandes, J. Sousa Ramos, "Spectral Invariants of Iterated Maps of the Interval" - 14th European Conference Iteration Theory ECIT 2002 - Évora, Portugal, Sep 2002.

 

 

Outros trabalhos científicos

· Trabalho sob orientação do Prof. Thiery Cazenave, com vista à obtenção do grau de Doutoramento, na área das Equações de Evolução, nomeadamente Schrödinger não linear com e sem campo magnético. Anos lectivos 1999/2000 e 2000/2001. Trabalho interrompido por motivos de ordem pessoal e profissional.

Publicações em actas de encontros científicos

 

Luís Mário  Lopes, Sara  Fernandes, Clara  Grácio, ”Windows of Synchronization” and ”Non-chaotic Windows”, ESAIM: Proc. 46 163-176 (2014).

 

Jayachandran, S., Fernandes, S., Conductance and Mixing Time in Discrete Dynamical Systems, Discrete Dynamics and Difference Equations: Proceedings of the Twelfth International Conference on Difference Equations and Applications, Lisbon, Portugal, 23-27 July, Eds Saber N. Elaydi, Henrique Oliveira, Jose Manuel Ferreira, World Scientific, 2010 – Mathematics, pp 239-247.

 

M. Tlemçani, S. Fernandes, Analysis of a Non Linear Discrete Dynamical System, signal coding and reconstruction, Proceedings of XIV International Conference on Difference Equations and Applications ICDEA, (2009).

 

Acilina Caneco, Clara Grácio, Sara Fernandes, J.L. Rocha and Carlos Ramos,  Conditions for the formation of clusters depending on the conductance and the coefficient of clustering, Proceedings of INDS09. (2009).

 

Caneco, A., Grácio C., Ramos, C.C., Fernandes, S., Rocha, J.L., Relationship between the behaviour of entropy, the conductance and the coefficient of clustering of networks using symbolic dynamics, IEEE Workshop on Nonlinear Maps and Applications, Noma’09, (2009).

 

Fernandes, Sara; Grácio, Clara; Sousa Ramos, J. Laplacians and the Cheeger constants for discrete dynamical systems. Difference equations, special functions and orthogonal polynomials, 213--223, World Sci. Publ., Hackensack, NJ, (2007).

 

Acilina Caneco, Sara Fernandes, Clara Grácio and J. Leonel Rocha, Symbolic Dynamics and Networks Synchronization, Proceedings of IEEE WORKSHOP ON NONLINEAR MAPS AND APPLICATIONS (NOMA’07), LATTIS-INSA, TOULOUSE UNIVERSITY, FRANCE, DEC. 13-14,(2007).

 

Sara Fernandes and J. Sousa Ramos, Second smaller zero of kneading determinant for iterated maps, Proceedings of the 8th International Conference on Difference Equations and Applications, Chapman and Hall/CRC, Taylor and Francis Group, pp.137-144, (2005).

 

Sara Fernandes and J. Sousa Ramos, Conductance: from electrical networks, through graphs, to dynamical systems, Proceedings of the conference NDES2004, 12th International IEEE Workshop on Nonlinear Dynamics of Electronic Systems, Évora 9-13 May, (2004).

 

Sara Fernandes and J. Sousa Ramos, First eigenvalue of the Laplacian in Discrete Dynamical Systems , Proceedings of XV European Conference on Iteration Theory ECIT 2004, Batschuns - Austria, August 29 – September 4, (2004).

Outras actividades

 

Professora Visitante no INSA de Toulouse entre 30 Nov e 6 Dez 2014. Colaboração com a Prof. Danièle Fournier-Prunaret.

 

Organizadora de Thematic session Fluid Dynamics and Numerical Semigroups, International Conference Dynamics, Games and Science III, 17-21 of February 2014 at University of Porto, Portugal.

 

Membro de Júri de Doutoramento em Métodos Quantitativos de Ana Maria da Rocha de Sousa Guedes Alves, ISCTE, Outubro 2013.

 

Organizadora de Thematic session Discrete Dynamics and Numerical Semigroups, DGS II 2013 - International Conference and Advanced School Planet Earth, Dynamics, Games and Science II, Lisbon, Portugal,
28 August to 6 September 2013.

 

Membro da Comissão Organizadora do NOMA’11, Évora Portugal, Setembro 2011.

 

Membro do Conselho Científico da conferência internacional “International Conference on Modeling, Optimization and Dynamics”, Faculty of Sciences of University of Porto, Julho 4-7, 2010.

 

Membro da Comissão Organizadora da conferência internacional “XV International Conference on Difference Equations and Applications, ICDEA 2009”, Estoril, 90 participantes, Outubro 2009;

 
 

Cargos desempenhados na Universidade de Évora:

 

Membro eleito do Conselho Científico da Escola de Ciências e Tecnologia da Universidade de Évora (desde Janeiro 2015);

Directora do Departamento de Matemática de Fevereiro de 2013 Fevereiro 2015;

Directora de Curso do Mestrado em Matemática para o Ensino, 2º ciclo, Bolonha, de Maio 2011 a Maio 2013;

Directora de Curso da Licenciatura em Matemática e Aplicações, 1º ciclo, Bolonha, de Maio 2009 a Maio de 2011;

Directora do Curso Preparatório de Matemática  para o Ingresso na Universidade, 2007/09;

Membro da Comissão de Curso da Licenciatura em Engenharia Química, 2007/09;

Membro da Comissão de Curso do Curso Preparatório de Matemática  para o Ingresso na Universidade, 2006/07, 2009/10 a 2012/13;

Responsável pelos exames M23 na Universidade de Évora pelo Departamento de Matemática, 2006/08.

Conselho Pedagógico, como representante do CDMAT, 2006/08;

Responsável pelos espaços no Departamento de Matemática, 1993/96;

Conselho do Departamento de Matemática, desde 1992, sendo entre 2009 e 2014  um cargo eleito;

Assembleia da Universidade de Évora, representante dos restantes docentes da Área Departamental de Ciências Exactas, 2003/05;

Membro do Senado Universitário,1993/95.