Page 5 - Textos de Matemática Vol. 41
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Financial support by the Department of Mathematics of the University of Coimbra, the Centre for Mathematics of the University of Coimbra (CMUC/FCT) and project 1M0021620808 of the Ministry of Education of the Czech Republic is gratefully acknowledged.
Jorge Picado
CMUC and Department of Mathematics, University of Coimbra, 3001-454 Coimbra, Portugal
picado@mat.uc.pt
Aleˇs Pultr
ITI (Institute of Theoretical Informatics) and Department of Applied Mathematics, MFF, Charles University, 11800 Praha 1, Czech Republic
pultr@kam.ms.mff.cuni.cz
