3 citations · 3 across the 3 of their papers we have counts for
4 papers
Compact Embedding Theorem Associated with Classical Weight Functions in Two Variables
M. K. Nangho, B. J. Nkwamouo, J. L. Woukeng
For a classical weight function defined on a simply connected open subset of (either bounded or unbounded) with piecewise boundary, we prove density of…
Characterization of classical orthogonal polynomials in two continuous variables
Maurice Kenfack Nangho, Kerstin Jordaan, Bleriod Jiejip Nkwamouo
For a family of polynomials in two continuous variables, orthogonal with respect to a weight function, we prove, under suitable conditions, the equivalence of the following propert…
Structure Relations of Classical Orthogonal Polynomials in the Quadratic and -Quadratic Variable
Maurice Kenfack Nangho, Kerstin Jordaan
We prove an equivalence between the existence of the first structure relation satisfied by a sequence of monic orthogonal polynomials , the orthogonality of…
A Characterization of Askey-Wilson polynomials
Maurice Kenfack Nangho, Kerstin Jordaan
We show that the only monic orthogonal polynomials that satisfy $$π(x)\mathcal{D}_{q}^2P_{n}(x)=\sum_{j=-2}^{2}a_{n,n+j}P_{n+j}(x),\; x=\cosθ,\;~ a_{n,n-2}…