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math.CO2014
Level Matrices
George Seelinger, Papa Sissokho, Larry Spence +1
Let and be fixed integers. A matrix is said to be level if all its column sums are equal. A level matrix with rows is called reducible if we can delete rows, $0…
math.CO2014
A Note on Minimal zero-sum sequences over
Papa A. Sissokho
A zero-sum sequence over is a sequence with terms in that sum to . It is called minimal if it does not contain a proper zero-sum subsequence. Conside…