@article{FerranteWimmer2010,
  author    = {Ferrante, Augusto and Wimmer, Harald K.},
  title     = {Reachability matrices and cyclic matrices},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68074},
  year      = {2010},
  abstract  = {We study reachability matrices R(A, b) = [b,Ab, . . . ,An-1b], where A is an n × n matrix over a field K and b is in Kn. We characterize those matrices that are reachability matrices for some pair (A, b). In the case of a cyclic matrix A and an n-vector of indeterminates x, we derive a factorization of the polynomial det(R(A, x)).},
  subject      = {Mathematik},
  language  = {en}
}
@article{BallesterBolinchesBeidlemanHeinekenetal.2010,
  author    = {Ballester-Bolinches, A. and Beidleman, J. C. and Heineken, H. and Pedraza-Aguilera, M. C.},
  title     = {Local Classes and Pairwise Mutually Permutable Products of Finite Groups},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68062},
  year      = {2010},
  abstract  = {The main aim of the paper is to present some results about products of pairwise mutually permutable subgroups and local classes.},
  subject      = {Mathematik},
  language  = {en}
}