Borges, Anabela

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  • PublicaçãoAcesso Aberto
    Bidimensional extensions of balancing and Lucas-balancing numbers
    2024 - Chimpanzo, J.; Catarino, Paula; Vasco, Paulo; Borges, Anabela
    In this article bidimensional extensions of balancing and Lucas-balancing numbers are introduced, as well as some properties of these new bidimensional sequences.
  • PublicaçãoAcesso Aberto
    New families of Jacobsthal and Jacobsthal-Lucas numbers
    2015 - Campos, Helena; Aires, Ana Paula; Catarino, Paula; Borges, Anabela; Vasco, Paulo
    In this paper we present new families of sequences that generalize the Jacobsthal and the Jacobsthal-Lucas numbers and establish some identities. We also give a generating function for a particular case of the sequences presented.
  • PublicaçãoAcesso Aberto
    k-Pell, k-Pell-Lucas and modified k-Pell numbers: some identities and norms of Hankel matrices
    2015-01 - Campos, Helena; Aires, Ana Paula; Catarino, Paula; Borges, Anabela; Vasco, Paulo
    In this paper we present some identities involving terms of k-Pell, k-Pell-Lucas and Modified k-Pell sequences. We also give some results on the column and row norms of Hankel matrices which entries are numbers of these sequences.