RT Journal Article T1 Commutativity of missing label operators in terms of Berezin brackets A1 Boya, Luis J. A1 Campoamor Stursberg, Otto-Rudwig AB We obtain a criterion on the commutativity of polynomials in the enveloping algebra of a Lie algebra in terms of an involution condition with respect to the Berezin bracket. As an application, it is shown that the commutativity requirement of missing label operators for reduction chains in the missing label problem can be solved analytically PB IOP Publishing Ltd SN 1751-8113 YR 2009 FD 2009 LK https://hdl.handle.net/20.500.14352/43780 UL https://hdl.handle.net/20.500.14352/43780 LA eng NO Comisión Interministerial de Ciencia y Tecnología (España) NO Ministerio de Educación, Formación Profesional y Deportes (España) NO Universidad Complutense de Madrid NO Comunidad de Madrid DS Docta Complutense RD 15 dic 2025