Volume 20 Number 2, 2019 A Short Note on Solutions of the Diophantine Equations $6^x + 11^y = z^2$ and $6^x– 11^y = z^2$ in Positive Integers x, y, z Nechemia Burshtein Pages 55-56 Download On Solutions of the Diophantine Equation $11^x + 23^y = z^2$ with Consecutive Positive Integers x, y Nechemia Burshtein Pages 57-61 Download Correction on “Some Relations Related to Centralizers on Semiprime Semiring, Vol. 13, Issue 1, 2017” D. Mary Florence, R. Murugesan and P. Namasivayam Pages 63-68 Download Computation of Some Temperature Indices of HC_5C_7 [p, q] Nanotubes V.R.Kulli Pages 69-74 Download On Solutions to the Diophantine Equation $7^x + 10^y = z^2$ when x, y, z are Positive Integers Nechemia Burshtein Pages 75-77 Download On Solutions of the Diophantine Equation $8^x + 9^y = z^2$ when x, y, z are Positive Integers Nechemia Burshtein Pages 79-83 Download The (a, b)-Temperature Index of H-Naphtalenic Nanotubes V.R.Kulli Pages 85-90 Download