Alan J. Hoffman, Arthur F. Veinott Jr.
Mathematical Programming
We discuss three equivalent formulations of a theorem of Seymour on nonnegative sums of circuits of a graph, and present a different (but not shorter) proof of Seymour's resut. © 1986 Springer-Verlag New York Inc.
Alan J. Hoffman, Arthur F. Veinott Jr.
Mathematical Programming
Alan J. Hoffman, Baruch Schieber
Discrete Applied Mathematics
Alan J. Hoffman, Kate Jenkins, et al.
Information Processing Letters
Ulrich Faigle, Alan J. Hoffman, et al.
SIAM Journal on Discrete Mathematics