2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33428We treat the model which describes "extreme black holes" moving slowly. We derive an effective lagrangian in the low energy for this model and then investigate a statistical behavior of "extreme black holes" in the finite temperature.8 pages, 5 eps files, LaTeX2e with the standard packages amssymb, graphicx, psfrag, Presented at The 9th Workshop on General Relativity and Gravitation, Hiroshima Univ., Japan, Nov. 3-6, 1999General Relativity and Quantum Cosmologytext