Approved by: Programa PESSOA
2005/GRICES
Dates: January 2005 - December
2006
Coordinators: D. Forge and D. M.
Cardoso
Research team:
French researchers:
C. Delorme, P. Bertholomé, D.
Forge and M. Kouider from University of Paris-Sud.
Portuguese
researchers:
D. M. Cardoso and P. Rama from University of Aveiro;
J.
O. Cerdeira and R. Cordovil from Technical University of
Lisbon.
Research topics: Spectral properties of matrices
of graphs with a (k,p)-regular set (vertex subset S inducing a k-regular
subgraph such that each vertex out of S has p neighbours in S) and their
combinatorial applications. Graph orientations using oriented matroids.
Applications of graph theory to the preservation of ecosystems. Topological and
combinatorial study of simplicial complexes and its simplicial
homology.
Research visits supported by the project:
R.
Cordovil, University of Paris-Sud, Orsay (LRI), 1 - 30 June 2005.
C. Delorme,
University of Aveiro, Maths Department (CEOC), 6-13 July 2005. (Details and photos)
D.
Forge, IST, 5-24 September 2005.
J. O. Cerdeira, University of Paris-Sud,
Orsay, 24 November to 5 December 2005.
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