Table of Contents: “...In Memory of Ruggiero de Ritis -- The Lectures -- Radiative Spacetimes -- Instantons and Scattering -- The Early Universe, the Present Universe -- 2D Dynamical Triangulations and the Weil-Petersson Measure -- Nöther Conserved Quantities and Entropy...”

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Table of Contents: “... Resonant Detectors -- The Entropy of Black Holes via Noether‚s Theorem -- Dual Lagrangian Theories -- The Boundary State Description of D-Branes -- The N-body Problem in Tetrad Gravity: A First Step towards a Unified Description of the Four Interactions...”

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