CEOC Visitors List
Year:
2008
2007
2006
2005
2004
2008
Visit of Jerzy Szymanski, Professor in the Department of Discrete Mathematics,Faculty of Mathematics and Computer Science, University of Adam Mickiewicz,
Poznan, Poland, December 1-15, 2008.
The scientific program of this visit included:
Complementary work related with the book on Discrete Mathematics published in 2008 by D. M. Cardoso,
J. Szymanski and M. Rostami;
Algorithms for the recognition of Hamiltonian Graphs;
Algorithms for the determination of graph polynomials (a supervision
activity with the PhD student Maria Em�lia Resende Silva).
Visit of Professor Sven-Ake Gustafson, Professor emeritus in Applied Mathematics, University of Stavanger, Norway , November 19-20, 2008.
The scientific program of this visit included:
Work in cooperation Tatiana Tchemisova;
A Mini-Course;(see (sum�rio)
(slides)
Discuss�o da eventual coopera��o em m�todos num�ricos de Programa��o Semi-Infinita e co-orienta��o
dos alunos de mestrado.
Visit of Irene Sciriha, Professor in the Department of Mathematics,
Mathematics, Faculty of Science, University of Malta, September 1-6, 2008.
The scientific program of this visit included:
scientific discussions on the
topics: algebraic and geometric characterization of singular graphs,
(k,t)-regular sets and main/non-main eigenvalues.
A seminar entitled "A Characterization of Singular Graphs"
Visit of Professor Zbigniew Bartosiewicz,
Faculty of Computer Science, Bialystok Technical University,
Bialystok, Poland, July 17-20, 2008.
The scientific program of this visit included:
Working sessions on a possible joint paper on
"The Second Euler-Lagrange Equation
of Variational Calculus on Time Scales",
by Zbigniew Bartosiewicz, Nat�lia Martins, and Delfim F. M.Torres.
Edouard Oudet, Savoie University, France, Feb. 21 - 28, 2008.
The scientific program of this visit included:
Working sessions on numerical optimization of the shape of hollows with prescribed properties of billiard scattering (retroreflectors and others). In particular, there was tried the search method by relaxation of solutions.
A seminar with the title: "From the drum to honeycombs", E. Oudet, Feb. 25, 2008.
Visit of Professor Agnieszka B. Malinowska, Faculty
of Computer Science, Bialystok Technical University (BTU), Bialystok, Poland, April 7-12, 2008.
The scientific program of this visit included:
Working sessions on a possible joint paper on "diamond-alpha integrals on
time scales", by Agnieszka B. Malinowska and Delfim F. M. Torres.
Visit of Professor Vadim Lozin, Mathematics Institute, University of Warwick, UK, March 24 - April 5, 2008.
The scientific program of this visit included:
A seminar with the title:
Stability preserving transformations of graphs (March 28, 2008); (Abstract)
Working resarch sessions on hereditary properties of graphs with convex quadratic stability number, partial orders on graphs and graphs with bounded clique-width.
Visit of Prof. Jerzy Szymanski, Adam Mickiewicz University, Poznan, Poland, February 10-20, 2008.
The scientific program of this visit included:
Working sessions on writing and solving exercises for the final chapters of the book (in Portuguese) entitled Discrete Mathematics � combinatorics, graph theory and algorithms, written in collaboration with Mohammad Rostami, from UBI, and Domingos M. Cardoso from UA.
Visit of Professor Dorota Mozyrska, Faculty of Computer Science, Bialystok Technical University (BTU), Bialystok, Poland, January 16-25, 2008.
The scientific program of this visit included:
Working sessions on a possible joint paper "Diamond-alpha Linear Dynamic Equations", by Dorota Mozyrska and Delfim F. M. Torres.
Discussion and preparation of documents for the Erasmus Mundus External Cooperation Window project proposed by BTU (University of Aveiro is a partner).
2007
Visit of Professor Agnieszka B. Malinowska, Faculty of Computer Science, Bialystok Technical University, Bialystok, Poland, December 15-22, 2007.
The scientific program of this visit included:
Working on the paper "Necessary and sufficient conditions for local
Pareto optimality on time scales", by Agnieszka B. Malinowska and Delfim F. M. Torres.
A seminar with the title:
Computational Approach to Essential and Nonessential Objective Functions in Linear Multicriteria Optimization (December 21, 2007); (Abstract)
Visit of Professors Dorota Mozyrska and Ewa Girejko from the Faculty of Computer Science of the Bialystok Technical University, Bialystok, Poland, November 18-24, 2007.
The scientific program of this visit included:
- 3 Working sessions on the "Week of Science and Technology"
(part of work task 1 on the "work plan agreement on cooperation
for 2007-2008");
- 2 seminars (one by Dorota Mozyrska; the other by Ewa Girejko)
on November 23; (Abstract)
- working sessions on fractional calculus (part of work task 4 on the "work plan agreement on cooperation for 2007-2008");
Visit of Professor Dieter Rautenbach, Technische Universitat Ilmenau, Germany, 19 July - 29 July, 2007.
The scientific program of this visit included:
Working research sessions on p-norm fractional domination in graphs.
Visit of Prof. Agnieszka B. Malinowska, Institute of Mathematics & Physics, Bialystok Technology University, Bialystok, Poland, May 1-10, 2007.
Visit of Prof. Agnieszka B. Malinowska, Institute of Mathematics & Physics,
Bialystok Technology University, Bialystok, Poland, January 4-18, 2007.
The scientific program of this visit included:
Working sessions for building a computer algebra package with the recent theory on essential and nonessential objective functions in linear vector-valued optimization problems.
Manuel Baena Garcia (PhD Student), University of Malaga, Spain, Feb/01 � May/15, 2007.
The scientific program of this visit included:
Working sessions on sequence pattern mining
Visit of PhD Student Cristina Carmona, University of Malaga, Spain, Feb/01 � May/15, 2007.
The scientific program of this visit included:
Working sessions on adaptive user models in e-learning
2006
Visit of Prof. Andrey V. Sarychev, Universit� degli Studi di Firenze, Italy (and member of Advisory Board of CEOC), October 25 - November 1, 2006.
The scientific program of this visit included:
Working sessions about the research activities of CEOC.
A seminar with the title:
Controlabilidade para algumas equa��es n�o lineares de f�sica matem�tica (October 27, 2006); (Abstract in Portuguese)
Visit of Prof. Gregorio Hernandez, Universidad Polit�cnica de Madrid and Prof. Santiago Canales, Universidad Pontificia Comillas de Madrid, Madrid, Spain, September 25-27, 2006.
The scientific program of this visit included:
Working sessions related to the project "Ac��o Integrada Luso-Espanhola N�77/06" about illumination problems on orthogonal polygons and heuristics.
Visit of Prof. Jerzy Szymanski, Adam Mickiewicz University, Poznan, Poland, July 9-25, 2006.
The scientific program of this visit included:
Working sessions for finishing the book on Discrete Mathematics (in Portuguese) in collaboration with Mohammad Rostami, from UBI, and Domingos M. Cardoso from UA.
Visit of Prof. Agnieszka B. Malinowska, Institute of Mathematics & Physics, Bialystok Technology University, Bialystok, Poland, June 5-12, 2006.
The scientific program of this visit included:
Working sessions on how to derive computationally efficient methods for determining nonessential objectives in nonlinear and optimal control vector-valued optimization problems.
A seminar with the title:
Nonessential Objective Functions in Vector Optimization Problems (June 8, 2006); (Abstract)
Visit of Prof. Giuseppe Buttazzo, Pisa University, Italy, May 16 � 18, 2006 and Sept. 17 � 20, 2006.
The scientific program of this visit included:
Working sessions on problems of minimal/maximal resistance and their possible applications;
A seminar with the title: �Asymptotic behaviour of a compliance-location problem�, G. Buttazzo, May 17, 2006.
Visit of Prof. Inta Volodko, Department of Engineering Mathematics, Riga Technical University, Riga LV-1658, Latvia, February 15-24, 2006.
Prof. Inta Volodko is also a Socrates-Erasmus Visiting Professor (Teaching Staff Mobility).
The scientific program of this visit included:
A seminar with the title:
Unsteady flows of a viscous incompressible fluid (February 17, 2006); (Abstract)
2005
Visit of Prof. Biswa Nath Datta, Northern Illinois University, Department of Mathematical Sciences De Kalb, Illinois 60115, USA, December 13-19, 2005.
The scientific program of this visit included:
Lectures in a mini-course on "State-of-the Art Computational Methods and Software for Control Systems" (14-15 December, 2005);
Research talk on "Recent Advances on Computational Methods for Structured Inverse
Eigenvalue Problems for Quadratic Matrix & Operator Pencils: Linking Mathematics to Industries".
More information about this visit and its purposes can be found here.
Visit of Prof. Jerzy Szymanski, Adam Mickiewicz University, Poznan, Poland, September 1-30, 2005.
The scientific program of this visit included:
Working sessions for the preparation of the book on Discrete Mathematics (in Portuguese) in collaboration
with Mohammad Rostami, from UBI, and Domingos M. Cardoso from UA.
Planning of a Computational Combinatorics project.
Visit of Prof. Olga I. Kostyukova, Chief Researcher of the Institute of Mathematics, National Academy of Science of Belarus, July 25-August 3, 2005
The scientific program of this visit included:
Seminars with the title:
Parametric Optimal Control Problems (July 29, 2005); (Abstract and slides)
Discussion of the following research topics:
Parametric Optimal Control Problems: dependence on parameter and perturbation analysis;
Convex Semi-Infinite Programming: Optimality Conditions and Numerical Methods.
Visit of Prof. Zbigniew Bartosiewicz, Technical University of Bialystok, Poland, July 18-23, 2005
The scientific program of this visit included:
A seminar with the topic:
Working Meetings on Observability and Observers (participants: Zbigniew Bartosiewicz,
Delfim F. M. Torres, Nat�lia Martins, and Alexander Plakhov);
Working Meetings on Noether's theorem and control on time scales (participants: Zbigniew Bartosiewicz, and Delfim F. M. Torres);
Discussion about possible future scientific cooperation between the cotg and the Control Group of the Department of Mathematics of the Institute of Mathematics and Physics of Bialystok Technical University (participants: Zbigniew Bartosiewicz, Delfim F. M. Torres, Eug�nio Rocha);
Discussion about the Bilateral "Socrates Programme - Higher Education (ERASMUS)" between the University of Aveiro and the Institute of Mathematics and Physics of Bialystok Technical University for the academic year 2005/2006 (participants: Zbigniew Bartosiewicz,
Delfim F. M. Torres).
Visit of Prof. Charles Delorme, Universit� de Paris-Sud, ORSAY, FRANCE, July 6-13, 2005
The scientific program of this visit included:
A seminar with the title:
Counting Dyck paths with constraints (July 12, 2005); (Abstract )
Discussion of some topics of the joint project "Algebraic Methods in Graph Theory".
Visit of Prof. Dragos Cvetkovic, University of Belgrade, Serbia and Montenegro, May 9-19, 2005.
The scientific program of this visit included:
Two seminars with the titles:
1. An introduction to the theory of graph spectra (May 11, 2005); (Abstract
)
2. Optimization and highly informative graph invariants (May 13, 2005); (Abstract
)
Discussion of the following research topics:
Some results on graphs with least eigenvalue -2;
Spectral moments of fullerene graphs;
Signless Laplacians and line graphs;
On some interconnections between combinatorial optimization and extremal graph theory.
Visit of Prof. Evgeny Lakshtanov, Institute for Information Transmission Problems, Moscow, Russia, March 10-24, 2005.
The scientific program of these visits included:
A seminar with the title:
Quantum analogue of Newton's problem of the body of least resistance (March 18, 2005). (Abstract)
Discussions on the following research topics:
Statement and study of the quantum problem of minimal resistance;
This problem in the long-wave limit;
Numerical approaches to the problem;
Organization and conducting mathematical circles for children.
Visit of Profs. Thomas Lachand-Robert and Myriam Comte (University of Savoie, France) and of Prof. Robert McCann (University of Toronto, Canada), January 9-14, 2005.
The scientific program of these visits included:
Two seminars:
1. Optimisation with convexity constraints: numerical methods, T. Lachand-Robert (University of Savoy, France), (January 11, 2005); (Abstract)
2. Optimal transportation with costs changing concavity,Robert McCann (University of Toronto), (January 12, 2005); (Abstract)
Discussion of the following research topics:
Convex bodies of minimal resistance and related problems of multidimensional calculus of variations;
Numerical methods of solving optimization problems;
Monge-Kantorovich mass transfer problem and its application to optimization problems in billiards;
Optimization problems related to partial differential equations, in particular, to the heat transfer through a window.
2004
Visit of Prof. Manuel Abellanas and Prof. Greg�rio Hern�ndez, Computational Research Group, Universidad Polit�cnica de Madrid, Spain, November 11-15, 2004.
The scientific program of this visit includes:
CEOC Seminar: "Geometric graphs: some problems and applications", Manuel Abellanas, (November 12, 2004); (Abstract)
Postgraduate Seminar: "Modelling and Graphics Visualization", Gregorio Hernandez, "Geometric Routing" (November, 12, 2004);
Discussion of the following topics:
Random Polygon Generation;
Some results on Good Illumination Problems;
Visibility with Limited Range.