Wenhua Zhao

activity

19992007

most citedA Vanishing Conjecture on Differential Operators with Constant Coefficients

25 citations · 48 across the 6 of their papers we have counts for

collaborators

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2 papers · 1 filter

math.CO2005★ 10 cited

NCS Systems over Differential Operator Algebras and the Grossman-Larson Hopf Algebras of Labeled Rooted Trees

Wenhua Zhao

Let $K$ be any unital commutative $\bQ$-algebra and $W$ any non-empty subset of $\bN^+$. Let $z = (z_{1}, ..., z_{n})$ be commutative or noncommutative free variables and $t$ a formal ce…

math.CO2003★ 3 cited

A New Approach to Order Polynomials of Labeled Posets and Their Generalizations

John Shareshian, David Wright, Wenhua Zhao

In this paper, we first give formulas for the order polynomial $Ω(\Pw; t)$ and the Eulerian polynomial $e(\Pw; λ)$ of a finite labeled poset $(P, ω)$ using the adjacency matrix of…