Zephyrinus C Okonkwo


First Name: Zephyrinus
Middle Name: C
Last Name: Okonkwo




  1. Okonkwo, Zephyrunus C. Singular perturbation problems for stochastic functional differential equations with causal operatorsDynamic systems and applications, Vol. 3 (Atlanta, GA, 1999), 475--482, Dynamic, Atlanta, GA, 2001.
  2. Okonkwo, Zephyrinus C.Turner, James C.Rowe, Errol G. Stability of stochastic functional differential equations involving abstract Volterra operatorsInt. J. Differ. Equ. Appl.(2001), no. 1, 59--78.
  3. Okonkwo, Zephyrinus C. Stochastic functional differential equations with abstract Volterra operators. I. Existence of solutionsVolterra equations and applications (Arlington, TX, 1996), 373--384, Stability Control Theory Methods Appl., 10Gordon and Breach, Amsterdam, 2000.
  4. Okonkwo, Zephyrinus C. Optimal control for Itô-type systems with partial initial conditionsCommun. Appl. Anal. (2000), no. 2, 257--266.
  5. Okonkwo, Zephyrinus C.Rowe, Errol G. On neutral stochastic functional-differential equations with causal operatorsInt. J. Appl. Math. (2000), no. 1, 131--140.
  6. Okonkwo, Zephyrinus C.; Ladde, Gangaram S. Itô-type stochastic differential systems with abstract Volterra operators and their controlDynam. Systems Appl. (1997), no. 4, 461--468.
  7. Okonkwo, Zephyrinus C. Admissibility and optimal control for difference equationsDynam. Systems Appl. (1996), no. 4, 627--634.
  8. Okonkwo, Z. C. Admissibility and optimal control for stochastic difference equationsIntegral methods in science and engineering (Houghton, MI, 1998), 263--267, Chapman & Hall/CRC Res. Notes Math., 418Chapman & Hall/CRC, Boca Raton, FL, 2000.
  9. Okonkwo, Zephyrinus C. Approximation procedures for an abstract LQ-optimal control problemLibertas Math. 18 (1998), 159--172.
  10. Okonkwo, Zephyrinus C. Two examples in ${\rm LQ}$-optimal control theoryLibertas Math. 13 (1993), 177--182.


Year Born: 1956