Semiclassical and Quantum Black Holes and their Evaporation, de Sitter and Anti-de Sitter Reg

An effective string theory in physically relevant cosmological and black hole nspace times is reviewed. Explicit computations of the quantum string entropy, npartition function and quantum string emission by black holes (Schwarzschild, nrotating, charged, asymptotically flat, de Sitter dS and AdS space times) in nthe framework of effective string theory in curved backgrounds p..