Results 31 to 40 of about 972,343 (359)

Constrained orthogonal polynomials [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2005
11 pages, 10 ...
openaire   +4 more sources

Equivalences of the Multi-Indexed Orthogonal Polynomials [PDF]

open access: yes, 2013
Multi-indexed orthogonal polynomials describe eigenfunctions of exactly solvable shape-invariant quantum mechanical systems in one dimension obtained by the method of virtual states deletion.
Odake, Satoru
core   +3 more sources

Expected number of real zeros for random linear combinations of orthogonal polynomials [PDF]

open access: yes, 2015
We study the expected number of real zeros for random linear combinations of orthogonal polynomials. It is well known that Kac polynomials, spanned by monomials with i.i.d.
D. Lubinsky, I. Pritsker, Xiaoju Xie
semanticscholar   +1 more source

Orthogonality of quasi-orthogonal polynomials

open access: yesFilomat, 2018
A result of P?lya states that every sequence of quadrature formulas Qn(f) with n nodes and positive Cotes numbers converges to the integral I(f) of a continuous function f provided Qn(f) = I(f) for a space of algebraic polynomials of certain degree that depends on n.
Bracciali, Cleonice F.   +2 more
openaire   +5 more sources

Clifford algebra-valued orthogonal polynomials in the open unit ball of Euclidean space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
A new method for constructing Clifford algebra-valued orthogonal polynomials in the open unit ball of Euclidean space is presented. In earlier research, we only dealt with scalar-valued weight functions.
Fred Brackx   +2 more
doaj   +1 more source

Orthogonal polynomials with orthogonal derivatives [PDF]

open access: yesBulletin of the American Mathematical Society, 1938
We are concerned with the following assertion: THEOREM. If {φn(x)} and { φn’(x)} are orthogonal systems of polynomials, then {φn(x)} may be reduced to the classical polynomials of Jacobi, Laguerre, or Hermite by means of a linear transformation on x.
openaire   +2 more sources

Orthogonal polynomials of dimension –1 in the non-definite case [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1994
: Orthogonal polynomials of dimension d = −1 are a particular case of vector orthogonal polynomials which are, themselves, a particular case of biorthogonal polynomials.
C. BREZINSKI , M. REDIVO-ZAGLIA
doaj  

Representations of orthogonal polynomials

open access: yesJournal of Computational and Applied Mathematics, 1998
Zeilberger's algorithm provides a method to compute recurrence and differential equations from given hypergeometric series representations, and an adaption of Almquist and Zeilberger computes recurrence and differential equations for hyperexponential integrals.
Dieter Schmersau, Wolfram Koepf
openaire   +3 more sources

A set of orthogonal polynomials induced by a given orthogonal polynomial

open access: yesAequationes Mathematicae, 1993
Given an integern ⩾ 1, and the orthogonal polynomialsπn(·; dσ) of degreen relative to some positive measuredσ, the polynomial system “induced” byπn is the system of orthogonal polynomials\(\{ \hat \pi _{k,n} \} \) corresponding to the modified measure\(d\hat \sigma _n = \pi _n^2 d\sigma \).
Gautschi, Walter, Li, Shikang
openaire   +3 more sources

Polynomials orthogonal on the semicircle [PDF]

open access: yesJournal of Approximation Theory, 1986
AbstractComplex polynomials {πk}, πk(z) = zk + ···, orthogonal with respect to the complex-valued inner product (f, g) = ∝0πf(eiθ)g(eiθ)dθ are studied. By direct calculation of moment determinants it is shown that these polynomials exist uniquely. The three-term recurrence relation satisfied by these polynomials is obtained explicitly as well as their ...
Gradimir V. Milovanović   +1 more
openaire   +1 more source

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