On the closure operators of the ordinal product of partially ordered sets
Morgado, José (1962)
Portugaliae mathematica
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Morgado, José (1962)
Portugaliae mathematica
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In this paper we consider a class of three-term recurrence relations, whose associated tridiagonal matrices are subnormal operators. In this cases, there are measures associated to the polynomials given by such relations. We study the support of these measures.
Betancor, J.J. (1988)
Portugaliae mathematica
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