TY - DATA AU - Sharp, Robert T. AU - Winternitz, Pavel. TI - Symmetry in physics: in memory of Robert T. Sharp T2 - CRM Proceedings and Lecture Notes, SN - 9781470439484 (online) PY - 2004/// CY - Providence, R.I. PB - American Mathematical Society KW - Symmetry (Physics) N1 - Includes bibliographical references; Symmetries and currents of massless neutrino fields, electromagnetic and graviton fields ; Naturalness and quintessence ; Congruence subgroups of PSL(2 UR - http://www.ams.org/crmp/034 ER -