Publications
Semigroup Forum | 1999
Semigroup Forum | 1999
P.M. Higgins
Classical and Quantum Gravity | 1999
R. Tavakol
On the number of invariant polynomials of the product of matrices with prescribed similarity classes
Mathematical Methods in the Applied Sciences | 1998
Studia Logica | 1998
R.O.Y. Dyckhoff
Electron. Notes Theor. Comput. Sci., | 1998
Universidade do Porto Faculdade de Ciências | 1998
NeuroReport | 1998
Semigroups and applications ({S}t.\ {A}ndrews, 1997) | 1998