Bivariate Chebyshev-I Weighted Orthogonal Polynomials on Simplicial Domains

Abstract: We construct a simple closed-form representation of degree-ordered system of bivariate Chebyshev-I orthogonal polynomials $\mathscr{T}{n,r}(u,v,w)$ on simplicial domains. We show that these polynomials $\mathscr{T}{n,r}(u,v,w),$ $r=0,1,\dots,n;$ $n\geq 0$ form an orthogonal system with respect to the Chebyshev-I weight function.