Kurbanov, VM2025-05-102025-05-1020040081-69061588-289610.1556/SScMath.41.2004.3.72-s2.0-4344613909https://doi.org/10.1556/SScMath.41.2004.3.7https://hdl.handle.net/20.500.14720/14838In this paper we consider the problem of local uniform equiconvergence with trigonometric series of orthogonal expansions in a system of eigenfunctions of the Sturm-Liouville operator with real potential q(x) is an element of L-1 (0, 1), for the function f (x) from the classes W-1(1) (0, 1) and W-r(1) (0, 1) (r greater than or equal to 1), f (0) = f (1) = 0. Rate of equiconvergence on every compact subset of (0, 1) is established. Rate of equiconvergence depends on the module of continuity of potential.eninfo:eu-repo/semantics/closedAccessSturm-Liouville OperatorEigenfunction ExpansionEquiconvergenceArticle