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Asymptotic analysis of Nash equilibria in nonzero-sum linear-quadratic differential games : The two player case
Schumacher, Johannes M., (1994)
Necessary and sufficient conditions for the existence of a positive definite solution of the matrix equation X+AtX-1=I
Engwerda, Jacob, (1991)
Necessary and sufficient conditions for the existence of a positive definite solution of the matrix equation X+A*X-1A=Q
Engwerda, Jacob, (1992)