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20132018
most citedA New Sub-Period-Minimum CV with Partial Hydrogen Depletion and Evidence of Spiral Disk Structure

22 citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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math.CO2018★ 1 cited

Partitions of the polytope of Doubly Substochastic Matrices

Lei Cao, Zhi Chen

In this paper, we provide three different ways to partition the polytope of doubly substochastic matrices into subpolytopes via the prescribed row and column sums, the sum of all e…

math.CO2017

Symmetric, Hankel-symmetric, and Centrosymmetric Doubly Stochastic Matrices

Richard R. Brualdi, Lei Cao

We investigate convex polytopes of doubly stochastic matrices having special structures: symmetric, Hankel symmetric, centrosymmetric, and both symmetric and Hankel symmetric. We d…