On the regularity of solutions of an operator Riccati equation arising in linear quadratic optimal control problems for hereditary differential systems
1989 ◽
Vol 140
(2)
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pp. 396-406
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2019 ◽
Vol 267
(1)
◽
pp. 180-227
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2013 ◽
Vol 51
(4)
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pp. 2809-2838
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2021 ◽
Vol 34
(5)
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pp. 1840-1857