Browsing by Author "Foulquie-Moreno, Ana"
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- Coherent pairs of linear functionals on the unit circlePublication . Branquinho, A.; Foulquie-Moreno, Ana; Marcellan, Francisco; Rebocho, M. N.In this paper we extend the concept of coherent pairs of measures from the real line to Jordan arcs and curves. [...]
- Second- order differential equations in the Laguerre-Hahn classPublication . Rebocho, Maria das Neves; Branquinho, A.; Paiva, Anabela; Foulquie-Moreno, AnaLaguerre-Hahn families on the real line are characterized in terms of second order differential equations with matrix coefficients for vectors involving the orthogonal polynomials and their associated polynomials, as well as in terms of second order differential equation for the functions of the second kind. Some characterizations of the classical families are derived.