Number Theory and Combinatorics

Abstract

Youngook Choi, On quasi-complete intersections of codimension 2 1249 Angel del Rio and Juan Jacobo Simon, Finiteness conditions and infinite matrix rings 1257 Dmitry N. Kozlov, A simple proof for folds on both sides in complexes of graph homomorphisms 1265 Jinjia Li, Characterization of modules of finite projective dimension over complete intersections 1271 James Pommersheim and Shahriar Shahriari, Unique factorization in generalized power series rings 1277 Anthony J. Crachiola, The hypersurface x + xy + z + t = 0 over a field of arbitrary characteristic 1289