Geometric and spectral analysis : CRM workshops on: Geometry of Eigenvalues and Eigenfunctions, June 4 - 8, 2012, Manifolds of Metrics and Probabilistic Methods in Geometry and Analysis, July 2 - 6, 2012, Spectral Invariants on Non-compact and Singular Spaces, July 23 - 27, 2012 / Centre de Recherches Mathématiques, Université de Montréal, Quebec, Canada. Pierre Albin ; Dmitry Jakobson ; Frédéric Rochon eds.