Galetti, D. [UNESP]de Toledo Piza, A. F R2014-05-272014-05-271988-03-01Physica A: Statistical Mechanics and its Applications, v. 149, n. 1-2, p. 267-282, 1988.0378-4371http://hdl.handle.net/11449/63849We extend the Weyl-Wigner transformation to those particular degrees of freedom described by a finite number of states using a technique of constructing operator bases developed by Schwinger. Discrete transformation kernels are presented instead of continuous coordinate-momentum pair system and systems such as the one-dimensional canonical continuous coordinate-momentum pair system and the two-dimensional rotation system are described by special limits. Expressions are explicitly given for the spin one-half case. © 1988.267-282engArtigo10.1016/0378-4371(88)90219-1Acesso restrito2-s2.0-45549118603