Galetti, D. [UNESP]Pimentel, B. M. [UNESP]Lima, C. L.Kyotoku, M.2014-05-272014-05-271999-12-01Physica A: Statistical Mechanics and its Applications, v. 262, n. 3-4, p. 428-440, 1999.0378-4371http://hdl.handle.net/11449/65917Group theoretical-based techniques and fundamental results from number theory are used in order to allow for the construction of exact projectors in finite-dimensional spaces. These operators are shown to make use only of discrete variables, which play the role of discrete generator coordinates, and their application in the number symmetry restoration is carried out in a nuclear BCS wave function which explicitly violates that symmetry. © 1999 Published by Elsevier Science B.V. All rights reserved.428-440engBCSGenerator coordinateGroup theoryNumber projectionNumber theoryFinite element methodKinematicsState space methodsWaveform analysisDiscrete generator coordinateFinite dimensional spacesGroup theoretical based techniquesSymmetry restorationArtigo10.1016/S0378-4371(98)00418-XWOS:000077989000015Acesso restrito2-s2.0-0032632364