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         Title: Instabilities of Rotating Relativistic Stars 
        Author(s): K. D. Kokkotas (Oral) ABSTRACT 
        We
        are going to present an overview of the astrophysical implications of
        the r-mode instability together with some related caveats. Especially,
        we will focus on the effects of the r-mode instability on the evolution
        due to accretion of the Low Mass X-ray (LMXB) binaries and we will
        discuss the problems raised from the study of the rotational
        instabilities in general relativity.  |