Alcarás, J. A. Castilho2022-04-292022-04-291977-01-01Journal of Mathematical Physics, v. 19, n. 1, p. 1-4, 1977.0022-2488http://hdl.handle.net/11449/231074Formulas for the calculation of two-body central interactions in the first approximation of the K-harmonics method are presented. These formulas are exact and account for diagonal and off-diagonal matrix elements as well. © 1978 American Institute of Physics.1-4engArtigo10.1063/1.5235382-s2.0-36749111777