### Optimization and Systems Theory Seminar

Friday, December 8, 2000, 11.00-12.00, Room 3721, Lindstedtsv. 25

**Jarmo Malinen**

Division of Optimization and Systems Theory

Department of Mathematics

KTH

E-mail: jarmo.malinen@math.kth.se

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On algebraic Riccati equations

Let *U*, *H* and *Y* separable Hilbert spaces. Let , , , .We consider several spectral factorization, partial ordering and
invariant subspace problems, associated to an operator-valued
-transfer function

and certain solutions of an associated discrete time algebraic Riccati
equation

Calendar of seminars

*Last update: November 30, 2000 by
Anders Forsgren,
anders.forsgren@math.kth.se.
*