Volume 23 Number 1, 2021 Hopf Bifurcation of a Rosenzweig-Macarthur Hyperbolic Tangent-Type Predator-Prey Model Jing Zhang Pages 1-6 Download All the Solutions of the Diophantine Equations px + (p + 1)y + (p + 2)z = M3 when p is Prime and 1 ≤ x, y, z ≤ 2 Nechemia Burshtein Pages 7-15 Download All the Solutions of the Diophantine Equations p4 + qy = z4 and p4 – qy = z4 when p, q are Distinct Primes Nechemia Burshtein Pages 17-20 Download Linear Regression Model Using Bayesian Approach for Iraqi Unemployment Rate Ali Hussein Ali and Tasnim H. Kadhim Pages 21-26 Download Edge Regularity on m-Bipolar Fuzzy Graph Ramakrishna Mankena, T.V. Pradeep Kumar, Ch. Ramprasad and J. Vijaya Kumar Pages 27-36 Download δ-Sombor Index and its Exponential for Certain Nanotubes V.R.Kulli Pages 37-42 Download The Mathematical Description of Homogeneous Turbulence for Incompressible Fluids Javier Rivera Pages 43-47 Download
