EXISTENCE OF POSITIVE PERIODIC SOLUTIONS FOR TWO KINDS OF NONLINEAR NEUTRAL DIFFERENCE EQUATIONS WITH VARIABLE DELAY Vol. 3(1) Jan 2015, No. 6, pp. 66-76 ABDELOUAHEB ARDJOUNI, AH

ON A MIXED MAX-TYPE RATIONAL SYSTEM OF DIFFERENCE EQUATIONS Vol. 3(1) Jan 2015, No. 16, pp. 164-169 NOURESSADAT TOUAFEK, NABILA HADDAD

PERIODIC SOLUTIONS FOR NONLINEAR NEUTRAL DIFFERENCE EQUATIONS WITH VARIABLE DELAY Vol. 1(2) July 2013, No. 15, pp. 285-293 ABDELOUAHEB ARDJOUNI, AHCENE DJOUDI

ON THE STABILITY OF A SYSTEM OF DIFFERENCE EQUATIONS FARIDA BELHANNACHE

GLOBAL CHARACTER OF SYSTEMS OF RATIONAL DIFFERENCE EQUATIONS Vol. 3(1) Jan 2015, No. 21, pp. 204-214 YACINE HALIM

ON THE EXISTENCE, MULTIPLICITY, AND NONEXISTENCE OF POSITIVE PERIODIC SOLUTIONS OF SYSTEMS OF SECOND ORDER DIFFERENTIAL EQUATIONS Vol. 2(1) Jan 2014, No. 7, pp. 72-84 LI HONG BAI

BEHAVIOR OF SOLUTIONS OF A CLASS OF NONLINEAR RATIONAL DIFFERENCE EQUATION Vol. 4(2) July. 2016, No. 8, pp. 78-87 E. M. ELABBASY1, M. Y. BARSOUM2, H. S. ALSHAWEE

DYNAMICS OF A SYSTEM OF k−DIFFERENCE EQUATIONS Vol. 5(2) July 2017, No. 23, pp. 242-249 N. HADDAD, J. F. T. RABAGO

EXISTENCE OF POSITIVE SOLUTIONS FOR A NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH INTEGRAL BOUNDARY CONDITIONS ABDELHAMID BENMEZAI AND ABDELKADER SAADI

MAXIMAL AND MINIMAL POSITIVE SOLUTIONS FOR A NONLOCAL BOUNDARY VALUE PROBLEM OF A FRACTIONAL-ORDER DIFFERENTIAL EQUATION Vol. 1 July 2011, No. 7, pp. 1-8 A. M. A. EL-SAYED AND E.