List of Articles Mohammadmahdi Shamivand Article 1 - Application of Chebyshev Polynomials for Solving Abel's Integral Equations of the First and Second Kind Ahmad Shahsavaran M. M. Shamivand Theory of Approximation and Applications , Issue 1 , Year , Spring 2018 Article 2 - Characterization of Regularity of Posemigroups by High-Quasi-Ideals 20.1001.1.25382217.2022.16.2.4.2 Mohammadmahdi Shamivand Theory of Approximation and Applications , Issue 1 , Year , Spring 2022 Article 3 - Numerical solution of Hammerstein Fredholm and Volterra integral equations of the second kind using block pulse functions and collocation method M. M. Shamivand A. Shahsavaran Theory of Approximation and Applications , Issue 1 , Year , Spring 2013