Volume 23 Number 1, 2021 (Current Issue) 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 $p^x + (p + 1)^y + (p + 2)^z = M^3$ when p is Prime and 1 ≤ x, y, z ≤ 2 Nechemia Burshtein Pages 7-15 Download All the Solutions of the Diophantine Equations $p^4 + q^y = z^4$ and $p^4 – q^y = z^4$ 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
