Lectures on Supergravity

Lectures

SAM Lectures on Extremal Black Holes in d = 4 Extended Supergravity

We report on recent results in the study of extremal black hole attractors in N = 2, d = 4 ungauged Maxwell-Einstein supergravities. For homogeneous symmetric scalar manifolds, the three general classes of attractor solutions with non-vanishing Bekenstein-Hawking entropy are discussed. They correspond to three (inequivalent) classes of orbits of the charge vector, which sits in the relevant sym...

Lectures on Jump Systems Lectures on Jump Systems

This document contains notes that accompanied a series of four lectures on jump systems. These lectures were presented at the Center of Parallel Computing to an audience consisting mainly of graduate students. Abstract A jump system is a nonempty set of integral vectors that satisfy a certain exchange axiom. of Lovv asz. A degree system of a graph G is the set of degree sequences of all subgrap...

Lectures on Spectrum Generating Symmetries and U-duality in Supergravity , Extremal Black Holes, Quantum Attractors and Harmonic Superspace

We review the underlying algebraic structures of supergravity theories with symmetric scalar manifolds in five and four dimensions, orbits of their extremal black hole solutions and the spectrum generating extensions of their U-duality groups. For 5D, N = 2 Maxwell-Einstein supergravity theories (MESGT) defined by Euclidean Jordan algebras ,J , the spectrum generating symmetry groups are the co...

Lectures on Hygiene

years. There is a wonderful lot of information contained in these pages. The book begins with a chapter on air and ventilation; the one on water-supply is also admirable and full of practical points derived from Indian experience. We learn,that Norton's tube wells were employed with excellent results in the Katihar Plague. Camp and in the Rangpur District. The remarks on filters are sound and t...