Geodesic
Orthogonal polynomials on rays: properties of zeros, related moment problems and symmetries
Žurnal matematičeskoj fiziki, analiza, geometrii, Tome 4 (2008) no. 3, pp. 395-419 Cet article a éte moissonné depuis la source Math-Net.Ru

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We establish some basic properties of zeros for orthonormal polynomials on radial rays. We introduce a moment problem related to these orthonormal polynomials and obtain necessary and sufficient conditions for its solvability. We establish some properties of orthonormal polynomials in the case when the measure of orthogonality has symmetries and show that the moment problem has solutions with some symmetric properties. 
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     title = {Orthogonal polynomials on rays: properties of zeros, related moment problems and symmetries},
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S. M. Zagorodnyuk. Orthogonal polynomials on rays: properties of zeros, related moment problems and symmetries. Žurnal matematičeskoj fiziki, analiza, geometrii, Tome 4 (2008) no. 3, pp. 395-419. http://geodesic.mathdoc.fr/item/JMAG_2008_4_3_a5/

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[7] S. M. Zagorodnyuk, “On a Moments Problem on Rays in the Complex Plane”, Abstr. 2nd Int. Conf. “Math. Analysis and Economics” (Sumy, April 1–4), 2003, 58–59