(Eugene, OR)  --  The woman who accused three University of Oregon basketball players of raping her last March is suing the university and men's head coach Dana Altman in federal court.  Lane County prosecutors declined to charge the accused, Brandon Austin, Damyan Dotson, and Dominic Artis, citing lack of evidence.  The three have since been kicked out of school.  The lawsuit claims Austin was the ringleader of the sexual assault, and says the University of Oregon was lax in its investigation of allegations that Austin had been investigated for a sex crime at Providence College in Rhode Island.  The suit claims the school and coach violated Title Nine, which is supposed to guarantee a safe learning environment for all students.