Abstract
In this paper, elementary techniques from linear algebra and elementary properties of the Grassmann manifolds are used to prove the existence of periodic orbits and to study the equilibrium structure of Riccati differential equations.
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Supported in part by NASA Grants #2384 and NAG-82 and DOE Contract #DE-AC01-80RA-5256
Supported in part by NASA Grant #NSG-2402, ARMY Grant #ILIG1102RHN7-05 and the National Science Foundation.
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Hermann, R., Martin, C. Lie and Morse theory for periodic orbits of vector fields and matrix Riccati equations, II. Math. Systems Theory 16, 297–306 (1983). https://doi.org/10.1007/BF01744584
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DOI: https://doi.org/10.1007/BF01744584