期刊
INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS
卷 26, 期 12, 页码 956-970出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10652469.2015.1073274
关键词
orthogonal polynomial sequences; 2-orthogonal polynomial sequences; quadratic decomposition; cubic decomposition; Chebyshev polynomials; perturbed polynomial sequences
资金
- Portuguese Government through the FCT, Fundacao para a Ciencia e a Tecnologia [PEst-OE/MAT/UI4080/2014]
- Fundação para a Ciência e a Tecnologia [PEst-OE/MAT/UI4080/2014] Funding Source: FCT
In this paper we give general quadratic and cubic decompositions of the sequence of monomials {x(n)}(n >= 0) and prove how the correspondent component sequences are connected with Chebyshev polynomial sequences (PSs). The two-way street that joins together the polynomial sequences brought by quadratic or cubic decomposition and those famous PSs is established by the reversed polynomials and initial perturbations. In the cubic decomposition case, the relation is given through a 2-orthogonal Chebyshev PS.
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