Memoirs of the American Mathematical Society 2011; 70 pp; softcover Volume: 209 ISBN10: 0821847511 ISBN13: 9780821847510 List Price: US$70 Individual Members: US$42 Institutional Members: US$56 Order Code: MEMO/209/985
 The moduli space of cubic threefolds in \(\mathbb{C}P^4\), with some minor birational modifications, is the BailyBorel compactification of the quotient of the complex 10ball by a discrete group. The authors describe both the birational modifications and the discrete group explicitly. Table of Contents  Moduli of smooth cubic threefolds
 The discriminant near a chordal cubic
 Extension of the period map
 Degeneration to a chordal cubic
 Degeneration to a nodal cubic
 The Main theorem
 The monodromy group and hyperplane arrangement
 Bibliography
 Index
