标题： 低能2+1弦引力；黑洞解 显示英文标题

标题： Low energy 2+1 string gravity; black hole solutions

摘要： 在本报告中，对霍洛维茨类型的n维杂化弦理论的动力学方程进行了详细推导，包括在弦框架和爱因斯坦框架中的推导。 特别是，给出了三维弦理论的动力学方程。 展示了霍洛维茨威尔奇和霍恩霍洛维茨弦黑洞解之间的关系。 推导了陈曼带电稀释子解，并明确识别了弦解场的一个子类。 给出了通过SL(2;R)变换对静态(2+1)霍恩霍洛维茨弦黑洞解的平稳推广。 显示英文摘要

摘要： In this report a detailed derivation of the dynamical equations for an n dimensional heterotic string theory of the Horowitz type is carried out in the string frame and in the Einstein frame too. In particular, the dynamical equations of the three dimensional string theory are explicitly given. The relation of the Horowitz Welch and Horne Horowitz string black hole solution is exhibited. The Chan Mann charged dilaton solution is derived and the subclass of string solutions field is explicitly identified. The stationary generalization, via SL(2;R) transformations, of the static (2+1) Horne Horowitz string black hole solution is given.