Alan J. Hoffman, Kate Jenkins, et al.
Information Processing Letters
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, Kate Jenkins, et al.
Information Processing Letters
Alan J. Hoffman, Baruch Schieber
Discrete Applied Mathematics
Terrence R. Scott, Alan J. Hoffman
IEEE Transactions on Circuits and Systems
Alan J. Hoffman
Linear Algebra and Its Applications