Recent Submissions

  • Orthogonal Frames in Krein Spaces † 

    Ferrer, Osmin; Sierra, Arley; Polo, Osvaldo (Basilea, Suiza, 2022)
    In this paper, we introduce the concept of orthogonal frames in Krein spaces, prove the independence of the choice of the fundamental symmetry, and from this, we obtain a number of interesting properties that they satisfy. ...