Riccati equations and normalized coprime factorizations for strongly stabilizable infinite-dimensional systems

The first part of the paper concerns the existence of strongly stabilizing solutions to the standard algebraic Riccati equation for a class of infinite-dimensional systems of the form Σ(A,B,S−1/2B*,D), where A is dissipative and all the other operators are bounded. These systems are not exponentially stabilizable and so the standard theory is not applicable. The second part uses the Riccati equation results to give formulas for normalized coprime factorizations over H∞ for positive real transfer functions of the form D+S−1/2B*(author−A)−1,B

Analytic and algebraic properties of Riccati equations:A survey

AbstractThis is a survey of recent results on the classical problems of the analytic properties of Riccati equations and algebraic properties of Riccati equations and applications to spatially distributed systems

Program for the Stage Production Ring Around Elizabeth

This four-page program details the Curtain Club of Ursinus College’s production of Ring Around Elizabeth, held December 12, 1942 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, and a scene synopsis.https://digitalcommons.ursinus.edu/theater_programs/1032/thumbnail.jp

Program for the Stage Production Light Up The Sky

This six-page program details the Curtain Club of Ursinus College’s production of Light Up The Sky, held November 30 and December 1, 1951 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, a scene synopsis, and local advertisements.https://digitalcommons.ursinus.edu/theater_programs/1019/thumbnail.jp

Program for the Stage Production All My Sons

This four-page program details the Curtain Club of Ursinus College’s production of All My Sons, held December 4 and 5, 1953 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, and a scene synopsis.https://digitalcommons.ursinus.edu/theater_programs/1000/thumbnail.jp

Program for the Stage Production Dark Victory

This four-page program details the Curtain Club of Ursinus College’s production of Dark Victory, held December 9 and 10, 1960 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, a scene synopsis, and a local advertisement.https://digitalcommons.ursinus.edu/theater_programs/1008/thumbnail.jp

Program for the Stage Production Angel Street

This three-page program details the Curtain Club of Ursinus College’s production of Angel Street, held December 2, 1950 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, and a scene synopsis.https://digitalcommons.ursinus.edu/theater_programs/1001/thumbnail.jp

Program for the Stage Production My Three Angels

This twenty-two-page program details the Curtain Club of Ursinus College’s production of My Three Angels, held May 12, 13, and 14, 1955 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the show, a scene synopsis, and local advertisements.https://digitalcommons.ursinus.edu/theater_programs/1028/thumbnail.jp