Vítor Hugo Fernandes

Departamento de Matemática

vhf at fct unl pt (email)

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Publications

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D
Dimitrova, I., Vítor H. Fernandes, and J. Koppitz. "The maximal subsemigroups of semigroups of transformations preserving or reversing the orientation on a finite chain." Publicationes Mathematicae Debrecen. 81.1-2 (2012): 11-29.
F
Fernandes, Vitor H. "The monoid of all injective orientation preserving partial transformations on a finite chain." Comm. Algebra. 28 (2000): 3401-3426.Website
Fernandes, V. H. "The monoid of all injective order preserving partial transformations on a finite chain." Semigroup Forum. 62 (2001): 178-204.

Recent Publications

  • Ranks and presentations of some normally ordered inverse semigroups
  • Ranks of monoids of endomorphisms of a finite undirected path (DOI: 10.1007/s40840-019-00762-4)
  • On orientation-preserving transformations of a chain
  • Endomorphisms of semigroups of order-preserving partial transformations
  • The rank of the semigroup of all order-preserving transformations on a finite fence
  • A note on generators of the endomorphism semigroup of an infinite countable chain
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