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math.RA2016
Homomorphisms of modules associated with polynomial matrices with infinite elementary divisors
Pudji Astuti, Harald K. Wimmer
If the inverse of a nonsingular polynomial matrix has a polynomial part then one can associate with a module over the ring of proper rational functions, which is related to…
math.RA2016★ 1 cited
A class of marked invariant subspaces with an application to algebraic Riccati equations
Pudji Astuti, Harald K. Wimmer
Invariant subspaces of a matrix are considered which are obtained by truncation of a Jordan basis of a generalized eigenspace of . We characterize those subspaces which are…