Marius Nkashama
Born:
place:
unknown
unknown
:
personal or universal URL: http://www.math.uab.edu/nkashama/
email: nkashama@math.uab.eduRESEARCH
Research Interests: Differential equations, dynamical systems, nonlinear analysis.
PAPERS
Dr. Nkashama has published 31 papers.
31. Nkashama, M. N.; Robinson, S. B. Resonance and nonresonance in terms of average values. J. Differential Equations 132 (1996), no. 1, 46--65.
30. Nkashama, M. N. Semilinear periodic-parabolic equations with nonlinear boundary conditions. J. Differential Equations 130 (1996), no. 2, 377--405.
29. Iannacci, R.; Nkashama, M. N. Nonlinear elliptic partial differential equations at resonance: higher eigenvalues. Nonlinear Anal. 25 (1995), no. 5, 455--471.
28. Nkashama, M. N. Semilinear third-order periodic boundary value problems at resonance. Special issue in honour of Professor James O. C. Ezeilo. J. Nigerian Math. Soc. 11 (1992), no. 3, 57--81.
27. Haddock, J. R.; Nkashama, M. N. Periodic boundary value problems and monotone iterative methods for functional-differential equations. Nonlinear Anal. 22 (1994), no. 3, 267--276.
26. Nkashama, M. N. Density condition at infinity and resonance in nonlinear elliptic partial differential equations. Nonlinear Anal. 22 (1994), no. 3, 251--265.
25. Nkashama, M. N. Saddle point theorem and nonlinear scalar Neumann boundary value problems. J. Austral. Math. Soc. Ser. A 55 (1993), no. 3, 386--402.
24. Haddock, J. R.; Nkashama, M. N.; Wu, J. Asymptotic constancy for pseudomonotone dynamical systems on function spaces. J. Differential Equations 100 (1992), no. 2, 292--311.
23. Gupta, C. P.; Nkashama, M. N. Periodic solutions of some forced nonlinear nonautonomous second order ordinary differential equations at resonance. Rend. Mat. Appl. (7) 12 (1992), no. 2, 505--520.
22. Nkashama, M. N. Periodically perturbed nonconservative systems of Liénard type. Proc. Amer. Math. Soc. 111 (1991),
no. 3, 677--682.21. Haddock, John R.; Nkashama, M. N.; Wu, Jian Hong. Asymptotic constancy for linear neutral Volterra integrodifferential equations. Tôhoku Math. J. (2) 41 (1989), no. 4, 689--710.
20. Nkashama, M. N.; Santanilla, J. Existence of multiple solutions for some nonlinear boundary value problems. J. Differential Equations 84 (1990), no. 1, 148--164.
19. Iannacci, R.; Nkashama, M. N. Nonlinear two-point boundary value problems at resonance without Landesman-Lazer condition. Proc. Amer. Math. Soc. 106 (1989), no. 4, 943--952.
18. Iannacci, R.; Nkashama, M. N.; Omari, P.; Zanolin, F. Periodic solutions of forced Liénard equations with jumping nonlinearities under nonuniform conditions. Proc. Roy. Soc. Edinburgh Sect. A 110 (1988), no. 3-4, 183--198.
17. Nkashama, M. N. A generalized upper and lower solutions method and multiplicity results for nonlinear first-order ordinary differential equations. J. Math. Anal. Appl. 140 (1989), no. 2, 381--395.
16. Iannacci, R.; Nkashama, M. N.; Ward, J. R., Jr. Nonlinear second order elliptic partial differential equations at resonance. Trans. Amer. Math. Soc. 311 (1989), no. 2, 711--726.
15. Ezeilo, J. O. C.; Nkashama, M. N. Resonant and nonresonant oscillations for some third order nonlinear ordinary differential equations. Nonlinear Anal. 12 (1988), no. 10, 1029--1046.
14. Conti, G.; Iannacci, R.; Nkashama, M. N. Nonuniform conditions for periodic solutions of forced Liénard systems with distinct delays. Z. Anal. Anwendungen 6 (1987), no. 4, 289--300.
13. Iannacci, R.; Nkashama, M. N. Unbounded perturbations of forced second order ordinary differential equations at resonance. J. Differential Equations 69 (1987), no. 3, 289--309.
12. Nkashama, M. N. Existence, unicité et multiplicité de solutions périodiques d'équations différentielles de Duffing non-linéaires avec dissipation. (French) [Existence, uniqueness and multiplicity of periodic solutions of nonlinear Duffing differential equations with dissipation] Canad. J. Math. 39 (1987), no. 3, 583--602.
11. Nkashama, M. N.; Willem, M. Time-periodic solutions of boundary value problems for nonlinear heat, telegraph and beam equations. Differential equations: qualitative theory, Vol. I, II (Szeged, 1984), 809--846, Colloq. Math. Soc. János Bolyai, 47, North-Holland, Amsterdam-New York, 1987.
10. Iannacci, R.; Nkashama, M. N. Nonlinear boundary value problems at resonance. Nonlinear Anal. 11 (1987), no. 4, 455--473.
9. Habets, P.; Nkashama, M. N. On periodic solutions of nonlinear second order vector differential equations. Proc. Roy. Soc. Edinburgh Sect. A 104 (1986), no. 1-2, 107--125.
8. Iannacci, R.; Nkashama, M. N. Unbounded perturbations of forced harmonic oscillations at resonance. Nonlinear functional analysis and its applications (Maratea, 1985), 277--289, NATO Adv. Sci. Inst. Ser. C: Math. Phys. Sci., 173, Reidel, Dordrecht-Boston, Mass., 1986.
7. Iannacci, R.; Nkashama, M. N. Nonresonance conditions for periodic solutions of forced Liénard and Duffing equations with delay. Ann. Soc. Sci. Bruxelles Sér. I 99 (1985), no. 1, 29--43 (1986).
6. Nkashama, M. N. Solutions périodiques des systèmes non conservatifs périodiquement perturbés. (French) [Periodic solutions of periodically perturbed nonconservative systems] Bull. Soc. Math. France 113 (1985), no. 4, 387--402.
5. Fabry, C.; Mawhin, J.; Nkashama, M. N. A multiplicity result for periodic solutions of forced nonlinear second order ordinary differential equations. Bull. London Math. Soc. 18 (1986), no. 2, 173--180.
4. Iannacci, R.; Nkashama, M. N. On periodic solutions of forced second order differential equations with a deviating argument. Ordinary and partial differential equations (Dundee, 1984), 224--232, Lecture Notes in Math., 1151, Springer, Berlin-New York, 1985.
3. Iannacci, R.; Nkashama, M. N. Periodic solutions for some forced second order Liénard and Duffing systems. Boll. Un. Mat. Ital. B (6) 4 (1985), no. 2, 557--568.
2. Conti, G.; Iannacci, R.; Nkashama, M. N. Periodic solutions of Liénard systems at resonance. Ann. Mat. Pura Appl. (4) 139 (1985), 313--327.
1. Nkashama, M. N.; Willem, M. Periodic solutions of the boundary value problem for the nonlinear heat equation. Bull. Austral. Math. Soc. 30 (1984), no. 1, 99--110.
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