According to  Google Scholar my research articles are highly cited and have received more than  1000 citations (800 citations from Thomson Scientific ISI Web of Knowledge) in professional journals as of July, 2009.   Please see link  for further citation info.  

 

 

 


43. On the existence of traveling waves for delayed reaction-diffusion equations, Journal of Differential Equations, 247(2009) 887-905.

42. Response of yeast mutants to extracellular calcium variations (With P. Marshall and S. Solis), Discrete and Continuous Dynamical Systems B, 12(2009), 439-453

41. Convex solutions of systems arising from Monge-ampere equations, Electronic Journal of Qualitative Theory of Differential Equations, 26(2009) 1-8 

40. Existence and Nonexistence of Positive Radial Solutions for Quasilinear Systems, AIMS, accepted 

39. Periodic solutions to non-autonomous second–order systems, Nonlinear Analysis, 71 (2009) 1271-1275 

38. Enhanced modeling of the glucose-insulin system and its applications in insulin therapies (with J. Li and Y. Kuang), Journal of Biological Dynamics, 3(2009) 22-38.

37.  Existence, multiplicity and dependence on a parameter for a periodic boundary value problem (with J. Graef, L. Kong)Journal of Differential Equations 245(2008), 1185-1197,

36. Positive radial solutions for p-Laplacian systems (with D. O’Regan), Aequationes Mathematicae,  75(2008), 43-50. 

35. A periodic boundary value problem with vanishing Green’s function (with J. Graef, L. Kong), Applied Mathematics Letters, 21(2008), 176-180. 

34.  Mathematical modeling and qualitative analysis of insulin therapies (with J. Li and Y. Kuang), Mathematical Biosciences, 210(2007), 17-33.  

33. An Eigenvalue Problem for Quasilinear Systems  (with J. Henderson),  Rocky Mountain Journal of Mathematics, 37(2007), 215-228.

32.  On the Number of Positive Solutions of Elliptic Systems ( with D. O'Regan), Mathematische Nachrichten, 280(2007), 1417-1430. 

31. Nontrivial solutions for p-Laplician systems ( with D. D. Hai), Journal of Mathematical Analysis and Applications,  330(2007), 186-194. 

30.   Multiple positive radial solutions for quasilinear equations in annular domains, Differential & difference equations and applications, 1121-1130. Edited by Ravi P. Agarwal and Kanishka Perera. Hindawi Publishing Corporation, New York, 2006.

29.   Existence and Nonexistence of Positive Solutions for Quasilinear Systems, Boundary Value Problems, 2006, ID71534, 1-9.

28.  Convex Solutions of boundary Value Problems Arising from Monge-Ampere Equations, Discrete and Continuous Dynamical Systems (with S. Hu), 16(2006), 705-720.

27. Convex Solutions of Boundary Value Problems, Journal of Mathematical Analysis and Applications, 318(2006) 246-252.

26.  An existence theorem for Quasilinear Systems, Proceedings of the Edinburgh Mathematical Society, 49 (2006), 505-511. 

25.  Positive periodic solutions of systems of second order ordinary differential equations (with Donal O'Regan), POSITIVITY, 10(2006),285-298.

24.  Positive Periodic solutions of systems of first ordinary differential equations (with D. O'Regan), Results in Mathematics, 48(2005),310-325.

23. Positive radial solutions for quasilinear systems in an annulus, Nonlinear Analysis 63 (2005), e2495-e2501.

22. Periodic solutions for scalar functional differential equations (with  Dan Ye, Meng Fan), Nonlinear Analysis,  62(2005), 1157-1181.

21. Positive radial solutions for quasilinear systems in an annulus, Discrete and Continuous Dynamical Systems.  Supplement Volume, 878-885, 2005.

20. Nonlinear Eigenvalue Problems for Quasilinear Systems (with J. Henderson), Computers and Mathematics with Applications, 49(2005), 1941-1949.

19. Positive periodic solutions of functional differential equations, Journal of Differential Equations 202  (2004), 354-366.
18. On the structure of positive radial solutions for quasilinear equations in annular domains, Advances in Differential Equations  8  (2003), 111-128.

17. On the number of positive solutions of nonlinear systems, Journal of Mathematical Analysis and Applications,  281  (2003), 287-306.

16. Positive solutions of nonlinear three-point boundary-value problems (with R. Ma). Journal of Mathematical Analysis and  Applications,  279  (2003), 216-227.

15. On positive solutions of some nonlinear fourth-order equations (with Z. Bai), Journal of Mathematical Analysis and Applications 270  (2002), 357-368.

14. Multiplicity of positive radial solutions for an elliptic system on an annulus (with D.R. Dunninger), Nonlinear Analysis  42  (2000), 803-811.

13. Multiplicity of positive solutions for a nonlinear differential equation with nonlinear boundary conditions ( with D.R. Dunninger), Ann. Polon. Math.  69  (1998),155-165.

12. Positive solutions for nonlinear eigenvalue problems (with J. Henderson ), Journal of Mathematical Analysis and Applications  208  (1997),252-259.

11. Existence and multiplicity of positive solutions for elliptic systems (with D.R. Dunninger), Nonlinear Analysis  29  (1997), 1051-1060.

10. On the existence of positive solutions of fourth order ordinary differential equations (with R. Ma), Applicable Analysis  59  (1995), 225-231.

9.  A Self-timed redundant-binary to binary number converter for digital arithmetic processors(with C-L Wey and C-P Wang),  Proc. IEEE International Conference on Computer DesignAustin, Texas, October (1995), 386-389.

8.  On the existence of positive solutions for semi-linear elliptic equations in the annulus, Journal of Differential Equations  109 (1994), 1-7.

7.  On the existence of positive solutions of ordinary Differential equations (with L. Erbe), Proceedings of the American Mathematical Society  120  (1994), 743--748.

6.   Existence and nonexistence of positive solutions for elliptic equations in an annulus inequalities and applications (with L. Erbe), Inequalities And Applications, World Scientific Series in Applicable Analysis (WSSIAA) 3  (1994), 207-217.

5.   Multiple positive solutions of some boundary value problems (with L. Erbe and S. Hu), Journal of Mathematical Analysis and Applications   184  (1994), 640-648.
4.   Solvability of some singular boundary value problems for the equation (p(t)r(t,u)u)')'/q(t) =f(t,u,pru'), Nonlinear Analysis  18 (1992), 649-655.

3.  Solvability of various boundary value problems for the equation (a(t,y)y')'=f(t,y,y'), Chinese Annals of Mathematics  11A (1990),607-612.

.Solvability of various boundary value problems for the equation (a(t,y)y')=f(t,y,y'), Chinese Journal of Contemporary Mathematics  11  (1990),395-367.

1.  Solvability of some boundary value problems for the singular equation (p(t)r(t,y)y')'/q(t) =f(t,y,pry'), Chinese Annals of Mathematics  12A  (1991), 87-91.

 

 

 

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