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Two stochastic optimal control problems are solved whose performance criteria are the expected values of exponential functions of quadratic forms. The optimal controller is linear in both cases but… (More)

- Todd O. Yeates, David H. Jacobson, +4 authors James M. Hogle
- The EMBO journal
- 1991

The crystal structure of V510, a chimeric type 2/type 1 poliovirus, has been determined at 2.6 A resolution. Unlike the parental Mahoney strain of type 1 poliovirus, V510 is able to replicate in the… (More)

Abstract A symmetric matrix C is called copositive if the quadratic form x′Cx is nonnegative for all nonnegative values of the variables ( x 1 , x 2 ,…, x n )= x ′. A known sufficient condition for a… (More)

In a recent short paper, Mageirou [1] showed that for infinite-time linear quadratic games an appropriate solution of an algebraic Riccati-type equation determines the value of the game but not… (More)

The performance of a process for example, how an aircraft consumes fuel can be enhanced when the most effective controls and operating points for the process are determined. This holds true for many… (More)

Abstract Sufficient conditions are given for a matrix Riccati differential equation to have a bounded solution; these conditions are less stringent than those known heretofore. The conditions are in… (More)

Sufficient conditions are derived for solutions of a general autonomous system of quadratic ordinary vector differential equations to exhibit finite escape times. These results are extended t o a… (More)

Abstract A general sufficiency theorem is presented for a class of quadratic minimization problems. This allows one to treat both singular and nonsingular quadratic functionals (second variations) as… (More)

Abstract A symmetric matrix C is said to be copositive if its associated quadratic form is nonnegative on the positive orthant. Recently it has been shown that a quadratic form x'Qx is positive for… (More)