Characterizations of distributional weights for weak orthogonal polynomials satisfying a second-order differential equation

Verfasser / Beitragende:
[D. Lee]
Ort, Verlag, Jahr:
2015
Enthalten in:
Annali di Matematica Pura ed Applicata (1923 -), 194/5(2015-10-01), 1319-1348
Format:
Artikel (online)
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024 7 0 |a 10.1007/s10231-014-0422-6  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10231-014-0422-6 
100 1 |a Lee  |D D.  |u Department of Mathematics, Teachers College, Kyungpook National University, 702-701, Daegu, South Korea  |4 aut 
245 1 0 |a Characterizations of distributional weights for weak orthogonal polynomials satisfying a second-order differential equation  |h [Elektronische Daten]  |c [D. Lee] 
520 3 |a Let $$\{ P_n(x) \}_{n=0}^\infty $$ { P n ( x ) } n = 0 ∞ be a monic weak orthogonal polynomial system (weak OPS) of order $$m$$ m relative to $$ \sigma $$ σ . Then we first prove that $$ \sigma $$ σ satisfies a new moment equation 0.1 $$\begin{aligned} P_{m+1} (x) \sigma =0, \end{aligned}$$ P m + 1 ( x ) σ = 0 , and then we find a general representation of $$\sigma $$ σ from the moment equation (0.1). Assuming moreover that $$\{ P_n(x) \}_{n=0}^\infty $$ { P n ( x ) } n = 0 ∞ satisfies a second-order differential equation, we find a distributional representation of $$ \sigma $$ σ for such weak OPSs by the coefficients $$\ell _i$$ ℓ i 's and the eigenvalues $$\lambda _k$$ λ k of differential equation. By analyzing those moment equations thoroughly, we finally classify all moment functionals $$ \sigma $$ σ for the weak OPSs satisfying a second-order differential equation. 
540 |a Fondazione Annali di Matematica Pura ed Applicata and Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Weak orthogonal polynomial  |2 nationallicence 
690 7 |a Recurrence relations  |2 nationallicence 
690 7 |a Differential equation  |2 nationallicence 
690 7 |a Orthogonalizing weights  |2 nationallicence 
773 0 |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/5(2015-10-01), 1319-1348  |x 0373-3114  |q 194:5<1319  |1 2015  |2 194  |o 10231 
856 4 0 |u https://doi.org/10.1007/s10231-014-0422-6  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10231-014-0422-6  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 100  |E 1-  |a Lee  |D D.  |u Department of Mathematics, Teachers College, Kyungpook National University, 702-701, Daegu, South Korea  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/5(2015-10-01), 1319-1348  |x 0373-3114  |q 194:5<1319  |1 2015  |2 194  |o 10231