Recent Submissions

  • The group inverse of circulant matrices with few parameters 

    Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Mitjana Riera, Margarida (2021)
    Conference report
    Open Access
    The need of solving linear systems with circulant matrices occurs in many problems related to the periodicity of that problem. This class of system appears in many applications that range from numerical solution of partial ...
  • Overdetermined partial resolvent kernel for generalized cylinders 

    Carmona Mejías, Ángeles; Jiménez Jiménez, María José (2021)
    Conference lecture
    Open Access
    Overdetermined partial boundary value problems are those where no data are prescribed onpart of the boundary, whereas both the values of the function and of its normal derivative aregiven on another part of the boundary. ...
  • The group inverse of circulant matrices with few parameters 

    Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Mitjana Riera, Margarida (2021)
    Conference lecture
    Open Access
    The need of solving linear systems with circulant matrices occursin many problems related to the periodicity of that problem. This class ofsystem appears in many applications that range from numerical solution ofpartial ...
  • On spectra of symmetric Jacobi matrices 

    Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (2021)
    Conference lecture
    Open Access
    A square symmetric matrix A is said bisymmetric if AS=SA, whereS is the matrix with ones along the secondary diagonal and zeroselsewhere. We denote by J(a,b) the real symmetric Jacobi matrixwith main ...
  • Perturbing networks 

    Mitjana Riera, Margarida; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2012)
    Conference lecture
    Open Access
    Semi-definite positive Schrödinger operators on finite connected networks are particular examples of a general class of self-adjoint operators called elliptic operators. Any elliptic operator defines an automorphism on the ...