Volume 19 Number 1, 2019 On Solutions of the Diophantine Equations p^4 + q^4 = z^2 and p^4-q^4= z^2 when p and q are Primes Nechemia Burshtein Pages 1-5 Download Size Multipartite Ramsey Numbers for Small Paths vs. K_{2,n} C. J. Jayawardene Pages 7-17 Download A Note on the Diophantine Equation p^x + (p + 1)^y = z^2 Nechemia Burshtein Pages 19-20 Download Mathematical Modelling on the Effects of Drug Abuse to the Societies Fikiri Lucas Matonya and Dmitry Kuznetsov Pages 21-35 Download Pseuduo-Complementation on Almost Lattices G.Nanaji Rao and R.Venkata Aravinda Raju Pages 37-51 Download All the Solutions of the Diophantine Equations (p + 1)^x – p^y = z^2 and p^y - (p + 1)^x = z^2 when p is Prime and x + y = 2, 3, 4 Nechemia Burshtein Pages 53-57 Download Estimation of Origin-Destination Matrix in Fuzzy Environment Abdushukoor K M and Sushama C M Pages 59-67 Download Asymptotic Behavior of Solutions of a Singularly Perturbed Differential System of Fractional Order Burkhan T. Kalimbetov Pages 69-74 Download On Solutions to the Diophantine Equations 5^x+103^y = z^2 and 5^x + 11^y = z^2 with Positive Integers x, y, z Nechemia Burshtein Pages 75-77 Download A Type of the Cauchy-Euler Equations: Distinct Complex Roots Gumpon Sritanratana and Atiwath Chanram Pages 79-88 Download Socioeconomic and Demographic Determinants of Birth Interval in Bangladesh: A Statistical Analysis Using Survival Mixed Regression Model and Proportional Hazard Regression Model Sharlene Alauddin, Md. Akhtarul Islam and M. Ershadul Haque Pages 89-99 Download Generalized Birkhoff Center of Almost Distributive Lattices Berhanu Assaye Alaba, Mihret Alamneh Taye and Gezahagne Mulat Addis Pages 101-110 Download
