Branquinho, A.Rebocho, M. N.2020-02-042020-02-042012A. Branquinho and M.N. Rebocho, Structure relations for orthogonal polynomials on the unit circle, Linear Algebra and its Applications 436 (2012), 4296-4310.http://hdl.handle.net/10400.6/9005Structure relations for orthogonal polynomials on the unit circle are studied. We begin by proving that semi-classical orthogonal polynomials on the unit circle satisfy structure relations of the following type: [...]engOrthogonal polynomials on the unit circleHermitian linear functionalsRecurrence relationsStructure relationsSemiclassical linear functionalspreprint