Alan J. Hoffman
Linear Algebra and Its Applications
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
Linear Algebra and Its Applications
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Theoretical Computer Science
Ilan Adler, Alan J. Hoffman, et al.
Discrete Applied Mathematics
Don Coppersmith, Alan J. Hoffman
Linear Algebra and Its Applications