A Note on the U Operator

V. Canivell, Pere Seglar

V. Bargmann

Wigner's theorem states that a symmetry operation of a quantum system is induced by a unitary or an anti-unitary transformation. This note presents a detailed proof which closely follows Wigner's original exposition.

Włodzisław Duch

F.G.A. van den Berg

This document contains working notes and preliminary calculations related to algebraic consistency conditions in operational frameworks. Material is presented in draft form for archival purposes. Completeness and rigor not guaranteed. Reader discretion advised.

Takeyuki Hida

‎Louis Marchildon