Papers in this volume are based on the Workshop on Symmetries in Physics held at the Center de recherches mathematiques (University of Montreal) in memory of Robert T. Sharp. Contributed articles are on a variety of topics revolving around the theme of symmetry in physics. The preface presents a biographical and scientific retrospect of the life and work of Robert Sharp. Other articles in the volume represent his diverse range of interests, including representation theoretic methods for Lie algebras, quantization techniques and foundational considerations, modular group invariants and applications to conformal models, various physical models and equations, geometric calculations with symmetries, and pedagogical methods for developing spatio-temporal intuition. The book is suitable for graduate students and researchers interested in group theoretic methods, symmetries, and mathematical physics.

Table of Contents:
Symmetries and currents of massless neutrino fields, electromagnetic and graviton fields by S. C. Anco and J. Pohjanpelto Naturalness and quintessence by C. P. Burgess Congruence subgroups of PSL(2,$\mathbb{Z}$) by C. J. Cummins and S. Pauli Asymptotic SU(2) and SU(3) Wigner functions from the weight diagram by H. de Guise, D. J. Rowe, and B. C. Sanders Physical applications of a five-dimensional metric formulation of Galilean invariance by M. de Montigny, F. C. Khanna, and A. E. Santana Variations on Dedekind's eta by T. Gannon Examples of Berezin-Toeplitz quantization: Finite sets and unit interval by J.-P. Gazeau, T. Garidi, E. Huguet, M. Lachieze-Rey, and J. Renaud A modified Weierstrass representation for CMC-surfaces in multi-dimensional Euclidean spaces by A. M. Grundland and W. J. Zakrzewski Boson realizations of semi-simple Lie algebras by C. Burdik and M. Havlicek Stretched Littlewood-Richardson and Kostka coefficients by R. C. King, C. Tollu, and F. Toumazet Group actions on compact hyperbolic manifolds and closed geodesics by P. Kramer Is there an ultimate symmetry in physics? by C. S. Lam Formal characters and resolution of infinite-dimensional simple $A_r$-modules of finite degree by D. Britten and F. Lemire Fusion rules and the Patera-Sharp generating-function method by L. Begin, C. Cummins, P. Mathieu, and M. A. Walton Transient effects in Wigner distribution phase space of a scattering problem by M. Moshinsky R. T. Sharp and generating functions in group theory by J. Patera Quasi-exact solvability in nonlinear optics by G. Alvarez, F. Finkel, A. Gonzalez-Lopez, and M. A. Rodriguez Coherent states, induced representations, geometric quantization, and their vector coherent state extensions by D. J. Rowe Symmetry math video game used to train profound spatial-temporal reasoning abilities equivalent to dynamical knot theory by M. Bodner and G. L. Shaw Polytope sums and Lie characters by M. A. Walton Subalgebras of Lie algebras. Example of sl(3,$\mathbb{R}$) by P. Winternitz.