Minimal square spectral factors / André C.M. RanA note on canonical upper-lower factorization for a class of input-output operators of the form I plus a strict contraction / A.C.M. RanStability of invariant subspaces of matrices with applications / A.C.M. Ran, L. RodmanTwo theorems on the discrete algebraic Riccati equation / A.C.M. RanSemidefinite invariant subspaces stability and applications / Andreas Cornelis Maria Ran
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Explicit formulas for Hankel norm approximations of infinite-dimensional systems / by Ruth F. Curtain and A.C.M. RanNecessary and sufficient conditions for the existence of a positive definite solution of the matrix equation X+ATX-1A = I / Jacob C. Engwerda, André C.M. Ran, Arie L. RijkeboerNecessary and sufficient conditions for the existence of a positive definite solution of the matrix equation X+A*X-1A=Q / by Jacob C. Engwerda, André C.M. Ran, Arie L. RijkeboerOn a generalization of Lyapounov's theorem / Jan van Mill, André RanWiener-Hopf factorization of transfer functions of extended Pritchard-Salamon realizations / M.A. Kaashoek, C.V.M. van der Mee, A.C.M. Ran