2013
DOI: 10.1088/1751-8113/46/12/125201
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Multivariate Chebyshev polynomials

Abstract: We study multivariate Chebyshev polynomials associated with root systems. Using properties of specialized singular elements corresponding to a root system , we construct explicitly the measure weight function γ. The latter ensures that these polynomials are orthonormal; it defines the scalar product in the function space where multivariate U-type Chebyshev polynomials constitute a basis. The obtained results are illustrated by constructing and studying 2-variate polynomials for root systems , and .

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Cited by 19 publications
(34 citation statements)
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“…The fact that this procedure is possible for any simple Lie algebra, shown in the works [5], [20] - [24]. The function Φ n (φ) has many useful properties, including the following "rule of multiplication"…”
Section: Description Of the Methodsmentioning
confidence: 99%
“…The fact that this procedure is possible for any simple Lie algebra, shown in the works [5], [20] - [24]. The function Φ n (φ) has many useful properties, including the following "rule of multiplication"…”
Section: Description Of the Methodsmentioning
confidence: 99%
“…Такая система обра-зует полный базис фундаментальной области в F g (X) [8]. Фундаментальная об-ласть для угловых переменных {x j } определяется соответствующим альковом (см., например, работу [9], с.…”
Section: некоторые определения и соотношенияunclassified
“…В работе [8] было показано, что для любой полупростой алгебры Ли g существует единственная функция γ g , которую легко выразить в терминах сингулярного эле-…”
Section: некоторые определения и соотношенияunclassified
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