__Papers in Refereed Journals____:__

87-(with J.R. Graef and L. Kong )Nontrivial solutions for systems of Sturm-Liouville boundary value problems, **Differential Equations & Applications - DEA**, 6(2) (2014) 255-265.

86-(with M. Ferrara)Multiple solutions for perturbed p-Laplacian boundary value problem with impulsive effects, **Electronic Journal of Differential Equations**,** **vol. 2014 (2014), No. 106, pp. 1-14.

85-(with S. Khademloo and A. Solimaninia)Multiple solutions for a perturbed fourth-order Kirchhoff type elliptic problem, **Portugaliae Mathematica** 71, Fasc 1 (2014) 39-61.

84-(with J.R. Graef and L. Kong)Infinitely many solutions for systems of Sturm-Liouville boundary value problems, **Results in Mathematics**, to appear.

83-(with M. Ferrara and S. Khademloo)Multiplicity results for perturbed fourth-order Kirchhoff type elliptic problems, **Applied Mathematics and Computation** 234 (2014) 316–325.

82-(with J. Henderson)Multiple solutions for a Dirichlet quasilinear system containing a parameter, **Georgian Mathematical Journal**, to appear.

81-(with J. Henderson and M. Khaleghi Moghadam)Infinitely many solutions for perturbed difference equations, **Journal of Difference Equations and Applications**,to appear.

80-(with M. Khaleghi Moghadam)Existence of three solutions for perturbed nonlinear difference equations, **Opuscula Mathematica**, to appear.

79-( with J.R. Graef and L. Kong)Existence of nontrivial solutions to systems of multi-point boundary value problems, **Discrete and Continuous Dynamical Systems**, Supplement 2013, pp. 273-281.

78-Multiple solutions for a quasilinear second order differential equation depending on a parameter, **Acta Math. Sin. (Engl. Ser.)**, to appear.

77-(with M. Karami)Infinitely many solutions for a class of Dirichlet boundary value problems with impulsive effects, **Bull. Math. Soc. Sci. Math. Roumanie**, to appear.

76-Multiple solutions for a nonlinear perturbed fractional boundary value problem, **Dynamic Systems and Applications**, to appear**.**

75-(with G.A. Afrouzi and A. Hadjian)Existence of three anti-periodic solutions for second-order impulsive differential inclusions with two parameters, **Discussiones Mathematicae Differential Inclusions, Control and Optimization **33 (2013) 115-133.

74-(with G.A. Afrouzi and A. Hadjian)Existence of multiple solutions for a mixed boundary-value problem, **Electronic Journal of Differential Equations,** Vol. 2013 (2013) No. 125, pp. 1-16.

73-(with G.A. Afrouzi, A. Hadjian and J. Henderson)Existence of infinitely many anti-periodic solutions for second-order impulsive differential inclusions, **Electronic Journal of Differential Equations, **Vol. 2013 (2013), No. 97, pp. 1-13

72-(with G. D'Agui and G. Molica Bisci)Multiple solutions for a perturbed mixed boundary value problem involving the one-dimensional p-Laplacian, **Electronic Journal of Qualitative Theory of Differential Equations (EJQTDE) **2013, No. 24, 1-14.

71-(with J. Henderson)Critical point approaches to quasilinear second order differential equations depending on a parameter, **Topological Methods in Nonlinear Analysis**, to appear.

70-(with G. Bonanno and D. O'Regan)Nontrivial solutions for Sturm-Liouville systems via a local minimum theorem for functionals, **Bulletin of the Australian Mathematical Society**, 89 (2014) 8-18.

69-(with J. Henderson)Infinitely many solutions for a perturbed quasilinear two-point boundary value problem, **Scientic Annals of "Al.I. Cuza" University of Iasi**, to appear.

68-( with J.R. Graef and L. Kong)Multiple solutions for systems of mmulti-point boundary value problems, **Opuscula Mathematica **33, no. 2 (2013) 293–306.

66-(with Lin Li)Quasilinear two point boundary value problems investigated via critical point Methods, **International Journal of Nonlinear Science** 14 (2012) No.4, 405-409.

65-(with G.A. Afrouzi and A. Hadjian)Non-trivial solutions for a two-point boundary value problem, **Annales Polonici Mathematici** 108.1 (2013) 75-84.

64-(with G.A. Afrouzi and A. Hadjian)Infinitely many Solutions for a mixed doubly eigenvalue boundary value problem, **Mediterranean Journal of Mathematics **10 (2013) 1317–1331.

63- (with S. M. Khalkhali and A. Razani)Infinitely many solutions a fourth order boundary value problem, **Electronic Journal of Differential Equations** Vol. 2012 (2012), No. 164, pp. 1–14.

62- Infinitely many solutions for systems of n fourth order partial differential equations coupled with Navier boundary conditions, **Arab J Math Sci **20(1) (2014) 77-100.

61- Existence of non-trivial solutions for systems of n fourth order partial differential equations, **Mathematica Slovaca**, to appear.

60-(with G.A. Afrouzi and A. Hadjian)Multiplicity results for a class of two-point boundary value systems investigated via variational methods**, Bull. Math. Soc. Sci. Math. Roumanie** Tome 55(103) No. 4, 2012, 343-352.

59-On a class of systems of n Neumann two-point boundary value Sturm-Liouville type equations**, Bulletin of the Iranian Mathematical Society (BIMS) **Vol. 39 No. 5 (2013) 821-840.

58- (with S. Khademloo)Existence of positive solutions for semilinear elliptic systems via variational methods, **Nonlinear Analysis: Modelling and Control** 2012, Vol. 17, No. 2, 194–209.

57-Existence results on a two-point boundary value fourth-order Sturm-Liouville type problem, **Electronic Journal of Differential Equations,** Vol. 2012 (2012), No. 84, pp. 1–15.

56-(with J. Henderson)Infinitely many solutions for a class of nonlocal elliptic systems of (p1,...,pn)-Kirchhoff type, **Electronic Journal of Differential Equations,** Vol. 2012 (2012), No. 69, pp. 1–15.

55-(with L. Li)Multiplicity solutions for a doubly eigenvalue fourth-order equation, **Journal of the Indian Math. Soc.,*** Vol. 80, Nos. 1-2, (2013), 99-110**.*

54- (with J. Henderson)Multiple solutions for a nonlocal perturbed elliptic problem of p-Kirchhoff type, **Communications on Applied Nonlinear Analysis**19(3) (2012) 25-39.

53-Multiple solutions for a class of multipoint boundary value systems driven by a one-dimensional (*p*1*, . . . , pn*)-Laplacian operator, **Abstract and Applied Analysis** 2012(2012) , Article ID 389530, 15 pages,doi:10.1155/2012/389530.

52-Infinitely many solutions for systems of n two-point boundary value Kirchhoff-type problems, **Annales Polonici Mathematici**107.2 (2013) 133-152.

51-Three solutions for a class of (p1,...,pn)-biharmonic systems via variational methods, **Thai J. Math . **10 (2012) Number 3, 497–515.

50-( with J.R. Graef and L. Kong)A variational approach to a Kirchhoff-type problem involving a parameter, **Results in Mathematics ** 63 (2013) 877-889.

49-( with J.R. Graef and L. Kong)Infinitely many solutions for systems of multi-point boundary value problems using variational methods, **Topological Methods in Nonlinear Analysis** 42, No. 1 (2013) 105–118.

48-(with G.A. Afrouzi, A. Hadjian and S. Shakeri)On a Class of Neumann Boundary Value Equations Driven by a (*p*1,…, *pn*)-Laplacian Operator**, J. Part. Diff. Eq.**, 25, No. 1 (2012) 21-31.

47-Non-trivial solutions for a class of two-point boundary value fourth-order Sturm-Liouville type equations, **Electronic Journal of Differential Equations**, Vol. 2012 (2012), No. 27, 1–9.

46-Non-trivial solutions for a class of (p1,...,pn)-biharmonic systems with Navier boundary conditions, **Annales Polonici Mathematici** 105.1 (2012) 65-76.

45- (with Y. Tian and C.-L. Tang)Existence of three solutions for a class of (p1,...,pn)- biharmonic systems with Navier boundary conditions, **Annales Polonici Mathematici** 104 (2012) 261-277.

44-Three solutions for systems of n fourth order partial differential equations, **Proceedings of the International Conference on Differential & Difference Equations and Applications**, to appear.

43-(with L. Li) Existence of three solutions for a doubly eigenvalue p-biharmonic equation, **Annales Polonici Mathematici **104.1 (2012) 71-80.

42- (with G.A. Afrouzi)Existence of Three Solutions to a Neumann Problem for Elliptic Equations Driven by a *p*-Laplacian Operator, **Global Journal of Pure and Applied Mathematics** 8, Number 1 (2012) 29–37.

41 -(with G.A. Afrouzi)Some multiplicity results to the existence of three solutions for a two-point boundary value problem with Neumann condition, **Advances in Theoretical and Applied Mathematics** 7, Number 1 (2012) 1–12.

40- (with G.A. Afrouzi)Three solutions for a quasilinear boundary value problem involving the one-dimensional p-Laplacian, **International Journal of Nonlinear Science** Vol.11(2011) No.3, 295-300.

39- (with G.A. Afrouzi)Three solutions for a class of Dirichlet quasilinear elliptic systems, **Global Journal of Pure and Applied Mathematics**, 7, Number 4 (2011) 345–354.

38-(with J.R. Graef and L. Kong)A critical points approach for the existence of multiple solutions of a Dirichlet quasilinear system, **J. Math. Anal. Appl**. 388 (2012) 1268–1278.

37- (with G.A. Afrouzi)Three solutions for a quasilinear Neumann boundary value problem,**World Journal of Modelling and Simulation**7 (2011) No. 4,283-289.

36-(with G.A. Afrouzi)Existence of multiple solutions for a Neumann boundary value problem driven by a *p*-Laplacian operator**, Nonlinear Studies** 18, No. 4, (2011) 559-563.

35- (with G.A. Afrouzi and S. Shakeri)A remark on the linearized stability of positive solutions for the (*p*1*,…, pn*)-Laplacian systems involving indefinite weight functions,** Journal of Advanced Research** **Differential Equations **3, Issue. 4 (2011) 40-44.

34-(with G.A. Afrouzi and Donal O'Regan)Existence of three solutions for a Kirchhoff-type boundary value problem, **Electronic Journal of Differential Equations** Vol. 2011 (2011), No. 91, 1–11.

33-(with G.A. Afrouzi)Multiplicity results for a Kirchhoff-type doubly eigenvalue boundary value problem, **The Journal of Mathematics and Computer Science(TJMCS) **3 No.1 (2011) 11-20.

32-(with J. Vahidi)Multiple solutions for a two-point boundary value problem depending on two parameters, **The Journal of Mathematics and Computer Science(TJMCS)** 3 No.2 (2011) 117 – 125.

31-(with G. Bonanno and D. O'Regan)Multiple solutions for a class of Dirichlet quasilinear elliptic systems driven by a (p,q)-Laplacian operator, **Dynamic Systems and Applications** 20 (2011) 89-100.

30-(with J.R. Graef and L. Kong)A critical points approach to multiplicity results for multi-point boundary value problems, **Applicable Analysis **90, No. 12 ( 2011) 1909–1925.

29-(with G.A. Afrouzi)Some multiplicity results to the existence of three solutions for a Dirichlet boundary value problem involving the p-Laplacian, **Mathematical Modelling and Analysis **16 Number 3, ( 2011) 390–400.

28- (with Y. Tian)Three solutions for a class of gradient Kirchhoff-type systems depending on two parameters, **Dynamic Systems and Applications** 20 (2011) 551-562.

27-(with G.A. Afrouzi and Donal O'Regan)Existence of three solutions for a doubly eigenvalue fourth-order boundary value problem, **The Taiwanese Journal of Mathematics** 15, No. 1 (2011) 201-210.

26-(with G.A. Afrouzi)Multiplicity theorems for a class of Dirichlet quasilinear elliptic systems involving the (p_1,…, p_n)-Laplacian, **Nonlinear Analysis TMA** 73 (2010) 2594-2602.

25-(with G.A. Afrouzi and Donal O'Regan)Three solutions to a class of Neumann doubly eigenvalue elliptic systems driven by a (p_1,…, p_n)-Laplacian, **Bull. Korean Math. Soc**. 47 (2010) No. 6, 1235-1250.

24-(with G.A. Afrouzi)Multiplicity results for a two-point boundary value double eigenvalue problem**, ****Ricerche mat**. 59 (2010) 39–47.

23-(with Yu Tian)Multiplicity results for a class of gradient systems depending on two parameters, **Nonlinear Analysis ****TMA** 73 (2010) 547-554.

22-(with D. Motreanu)Multiplicity Results for a Two Points Boundary Value Problem, **PanAmerican Mathematical Journal** 19 Number 3 (2009) 69–78.

21-(with G.A. Afrouzi)Existence of three solutions for a class of Dirichlet quasilinear elliptic systems involving the (p1,…, pn)-Laplacian**, Nonlinear Analysis ****TMA** 70 (2009) 135-143.

20-(with G.A. Afrouzi)Three solutions to a Dirichlet problem for elliptic equations involving the P-Laplacian in N-dimensional case, **Dynamics of Continuous, Discrete & Impulsive Systems Series A: Mathematical Analysis** 16 (2009) 327-335.

19- (with G.A. Afrouzi)Three solutions for a quasilinear boundary value problem, **Nonlinear Analysis ****TMA** 69 (2008) 3330-3336.

18-(with G.A. Afrouzi)Existence of three solutions for a boundary value problem in one-dimensional case, **Int. J. Nonlinear Science** 4/1 (2007) 76-80.

17-(with G.A. Afrouzi and S.H.Rasouli)On the minimax inequality for a special class of functionals, **World Journal of Modelling and Simulation** 3 No. 3 (2007) 220-224.

16-(with G.A. Afrouzi)On the minimax inequality and its application to existence of three solutions for elliptic equations with Dirichlet boundary condition**, World Journal of Modelling and Simulation** 3 No. 2 (2007) 83-89.

15-(with G.A. Afrouzi)Multiplicity theorems for a Dirichlet boundary value problem in N-dimensional case**, World Journal of Modelling and Simulation** 3 No. 2 (2007) 100-105.

14-(with G.A. Afrouzi)Three solutions for a Dirichlet boundary value problem involving the p-Laplacian, **Nonlinear Analysis ****TMA** 66 (2007) 2281-2288.

13-(with G.A. Afrouzi)On a Boundary Value Problem Involving p-Laplacian, **Advances in Theoretical and Applied Mathematics** 1 No.1 (2006) 71-77.

12-(with G.A. Afrouzi)On the existence of three solutions for a Dirichlet boundary value problem in N-dimensional case, **Int. J. Nonlinear Science** 2/2 (2006) 111-116.

11-(with G.A. Afrouzi)Multiplicity results for the Dirichlet boundary value problem involving the p-Laplacian in N-dimensional case, **World Journal of Modelling and Simulation **2 No. 4 (2006) 222-226.

10-(with G.A. Afrouzi)Multiplicity results for the Dirichlet boundary value problem involving the p-Laplacian, **Advances in Theoretical and Applied Mathematics** 1 No.1 (2006) 63-69.

9-(with G.A. Afrouzi)Multiplicity results for a boundary value problem with Dirichlet condition, **Int. J. Contemp. Math. Sciences** 1No. 14 (2006) 665- 672.

8-(with G.A. Afrouzi)Existence of Three Solutions for a Boundary Value Problem in N-dimensional Case, **International Journal of Applied Engineering Research** 1, No.1 (2006) 111-117.

7-(with G.A. Afrouzi)Minimax inequality for a special class of functional and its application for elliptic equation involving the p-Laplacian with Dirichlet boundary condition, **International Journal of Applied Engineering Research** ** **1/1 (2006) 99-109.

6- (with G.A. Afrouzi)Existence of three solutions for the Dirichlet problem involving the P-Laplacian, **Global Journal of Pure and Applied Mathematics** 2/1 (2006) 73-78.

5-(with G.A. Afrouzi)Multiplicity results for a 2-dimensional Dirichlet problem, **Int. J. Nonlinear Science** 1/2 (2006) 82-87.

4-(with G.A. Afrouzi)Minimax inequality for a special class of functional and its application for elliptic equation involving the p-Laplacian with Dirichlet boundary condition**, International Journal of Applied Engineering Research** ** **1/1 (2006) 99-109.

3-(with G.A. Afrouzi)Multiplicity results for a Dirichlet boundary value problem in the higher dimensional case, **Advances in Dynamical Systems and Applications** 1(2) (2006) 121-127.

2- (with G.A. Afrouzi)Existence of three solutions for the Dirichlet problem involving the p-Laplacian and minimax inequality for relevant functionals, **Iranian journal of science and technology, Transaction A-Science** 30/A3 (2006) 369-374.

1- (with G.A. Afrouzi)Minimax inequality for a special class of functionals and its application to existence of three solutions for a two point boundary value problem, **Electronic Journal of Differential Equations** 2006/121 (2006) 1-10.

__Papers in Conferences and Seminars:__

1-Existence of three solutions for a Dirichlet problem involving the N-dimensional p-Laplacian, **36th Annual Iranian Mathematics Conference**, September 10-13, 2005, University of Yazd, Yazd, **Iran**.

2-Multiplicity results for a Dirichlet Problem involving the p-Laplacian in N-dimensional case, **38th Annual Iranian Mathematics Conference**, 3-6 September, 2007, University of Zanjan, Zanjan, **Iran**.

3- (Spring school)Topics in PDE’s and Applications 2008, May 5-9, CRM, Universitat Autònoma de Barcelona, Bellaterra, **Spain**.

4-Existence of three solutions for a Dirichlet boundary value problem, Non-commutative Structures in Mathematics and Physics, July 22-26, 2008, Brussels, **Belgium**.

5- Existence of three solutions for a Kirchhoff-type doubly eigenvalue boundary value problem with Dirichlet condition, **18th Seminar on Mathematical Analysis**, 2009, Tarbiat Moallem University, Tehran, **Iran**.

6-Multiple solutions for Neumann elliptic equations driven by a P-Laplacian operator, **The 2nd international conference on nonlinear analysis and optimization** 2009, University of Isfahan, Isfahan, **Iran**.

7-Existence of three solutions to a class of Neumann doubly eigenvalue elliptic systems driven by a (p1, ..., pn)-Laplacian,** Nonlinear problems for p-Laplace and Laplace**, 10-14 August 2009, Linköping, **Sweden**.

8-Three solutions for systems of n fourth order partial differential equations, **International Conference on Di¤erential & Di¤erence Equations and Applications, Conference in honour of Professor Ravi P. Agarwal**, 4-8 July 2011, Azores University, Ponta Delgada, **Portugal**.

9- Multiple solutions for a perturbed mixed boundary value problem,** Calculus of Variations and PDEs**., 9-12 July 2012, Institute of Mathematics of polish Academy of Sciences, University ofWarsaw, Szczawnica, **Poland.**

10-Multiplicity results for systems of n fourth order partial differential equations, 24 July 2012, DIMET – Faculty of engineering, University of Reggio Calabria, Reggio Calabria, **Italy.**

11- Multiplicity results for Kirchhoff systems, 25 July 2012, Department of Science for Engineering and Architecture (Mathematics Section), Engineering Faculty, University of Messina, Messina, **Italy**.

12- Critical points approaches to multiplicity results for multi-point boundary value systems, 26 July 2012, Department of Mathematics, University of Catania, Catania, **Italy.**

13- Some existence results for a class of fourth-order Kirchhoff-type problems, Seminar on Differential Equations and Geometry, 1 April 2014, Dipartimento PAU, University of Reggio Calabria, **Italy**.