Advances in Theoretical and Mathematical Physics

Volume 15 (2011)

Number 6

Contents

Breaking GUT groups in F-theory

Ron Donagi and Martijn Wijnholt

pp. 1523-1603

$E_7$ groups from octonionic magic square

Sergio L. Cacciatori, Francesco Dalla Piazza, and Antonio Scotti

pp. 1605-1654

A rigid Calabi–Yau three-fold

Sara Angela Filippini and Alice Garbagnati

pp. 1745-1787

Algebraic deformations of toric varieties II: noncommutative instantons

Lucio Cirio, Giovanni Landi, and Richard J. Szabo

pp. 1817-1907

Codes and supersymmetry in one dimension

Charles F. Doran, Michael G. Faux, Sylvester James, Jr. Gates, Tristan Hübsch, Kevin M. Iga, Gregory D. Landweber, and Robert L. Miller

pp. 1909-1970