21 citations · 22 across the 4 of their papers we have counts for
4 papers
The Number of Zeros of Unilateral Polynomials over Coquaternions Revisited
M. Irene Falcão, Fernando Miranda, Ricardo Severino +1
The literature on quaternionic polynomials and, in particular, on methods for determining and classifying their zero-sets, is fast developing and reveals a growing interest on this…
Weierstrass method for quaternionic polynomial root-finding
M. Irene Falcão, Fernando Miranda, Ricardo Severino +1
Quaternions, introduced by Hamilton in 1843 as a generalization of complex numbers, have found, in more recent years, a wealth of applications in a number of different areas which…
Irreducible complexity of iterated symmetric bimodal maps
J. P. Lampreia, R. Severino, J. Sousa Ramos
We introduce a tree structure for the iterates of symmetric bimodal maps and identify a subset which we prove to be isomorphic to the family of unimodal maps. This subset is used a…
K-theory for Cuntz-Krieger algebras arising from real quadratic maps
Nuno Martins, Ricardo Severino, J. Sousa Ramos
We compute the -groups for the Cuntz-Krieger algebras , where is the Markov transition matrix arising from the \textit…