Abdul-Aziz Yakubu

Born:

place: Ghana

1990 North Carolina State University Ph.D.
thesis: Discrete time competitive systems; Advisor: John Franke
area of degree: Mathematical Biology

Professor of Mathematics Howard University

personal or universal URL: http://138.238.61.55/~reb/Pages/Aziz/aziz.htm
email: aziz@scs.howard.edu

Research

24 publications in Mathematical Biology

PUBLICATIONS

  1. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Discrete time S-I-S models with complex dynamics. Ithaca : Cornell University 2000.
  2. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Discrete-time nonlinear pair formation models with geometric solutions. Ithaca : Cornell University, 2000
  3. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Discrete-time S-I-S models with simple and complex population dynamics. Ithaca : Cornell University 2000
  4. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Dispersal, disease and life-history evolution. Ithaca : Cornell University 2000.
  5. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Epidemic models on attractors. Ithaca : Cornell University 2000.
  6. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Geometric versus bounded growth on discrete-time S-I-S models with variable population size. Ithaca : Cornell University 2000.
  7. Castillo-Chavez, Carlos and Yakubu, Abdul-Aziz. Intraspecific competition, dispersal  and disease dynamics in discrete-time patchy environments. Ithaca : Cornell University 2000.
  8. Franke, John E.; Yakubu, Abdul-Aziz,Exclusionary population dynamics in size-structured, discrete competitive systems. J. Differ. Equations Appl. 5 (1999), no. 3, 235--249.
  9. Franke, John E.; Yakubu, Abdul-Aziz, Extinction and persistence in a size-structured, discrete competitive system with dispersion. Differential equations with applications to biology (Halifax, NS, 1997), 159--174, Fields Inst. Commun., 21, Amer. Math. Soc., Providence, RI, 1999.
  10. Franke, John E.; Yakubu, Abdul-Aziz, Global asymptotic behavior and dispersion in age-structured, discrete competitive systems. Geoffrey J. Butler Memorial Conference in Differential Equations and Mathematical Biology (Edmonton, AB, 1996). Canad. Appl. Math. Quart. 5 (1997), no. 4, 375--395.
  11. Yakubu, Abdul-Aziz, Prey dominance in discrete predator-prey systems with a prey refuge. Math. Biosci. 144 (1997), no. 2, 155--178.
  12. Franke, John E.; Yakubu, Abdul-Aziz, Diffusion between patches in multi-species discrete competitive systems. Advances in difference equations (Veszprém, 1995), 205--212, Gordon and Breach, Amsterdam, 1997.
  13. Franke, John E.; Yakubu, Abdul-Aziz, Extinction and persistence of species in discrete competitive systems with a safe refuge. J. Math. Anal. Appl. 203 (1996), no. 3, 746--761.
  14. Franke, John E.; Yakubu, Abdul-Aziz, Extinction of species in age-structured, discrete noncooperative systems. J. Math. Biol. 34 (1996), no. 4, 442--454.
  15. Franke, John E.; Yakubu, Abdul-Aziz, Principles of competitive exclusion for discrete populations with reproducing juveniles and adults. Proceedings of the Second World Congress of Nonlinear Analysts, Part 2 (Athens, 1996). Nonlinear Anal. 30 (1997), no. 2, 1197--1205.
  16. Yakubu, Abdul-Aziz, The effects of planting and harvesting on endangered species in discrete competitive systems. Math. Biosci. 126 (1995), no. 1, 1--20.
  17. Franke, John E.; Yakubu, Abdul-Aziz, Dominance conditions in age-structured discrete competitive systems. Proceedings of the First International Conference on Difference Equations (San Antonio, TX, 1994), 197--211, Gordon and Breach, Luxembourg, 1995.
  18. Franke, John E.; Yakubu, Abdul-Aziz, Extinction in systems of bobwhite quail populations. Proceedings of the G. J. Butler Workshop in Mathematical Biology (Waterloo, ON, 1993). Canad. Appl. Math. Quart. 3 (1995), no. 2, 173--201.
  19. Franke, John E.; Yakubu, Abdul-Aziz, Exclusion principles for density-dependent discrete pioneer-climax models. J. Math. Anal. Appl. 187 (1994), no. 3, 1019--1046.
  20. Franke, John E.; Yakubu, Abdul-Aziz, Pioneer exclusion in a one-hump discrete pioneer-climax competitive system. J. Math. Biol. 32 (1994), no. 8, 771--787.
  21. Franke, John E.; Yakubu, Abdul-Aziz, Species extinction using geometry of level surfaces. Nonlinear Anal. 21 (1993), no. 5, 369--378.
  22. Franke, John E.; Yakubu, Abdul-Aziz, Geometry of exclusion principles in discrete systems. J. Math. Anal. Appl. 168 (1992), no. 2, 385--400.
  23. Franke, John E.; Yakubu, Abdul-Aziz, Mutual exclusion versus coexistence for discrete competitive systems. J. Math. Biol. 30 (1991), no. 2, 161--168.
  24. Franke, John E.; Yakubu, Abdul-Aziz, Global attractors in competitive systems. Nonlinear Anal. 16 (1991), no. 2, 111--129.

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