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math.CO2006
Interpreting the two variable Distance enumerator of the Shi hyperplane arrangement
Sivaramakrishnan Sivasubramanian
We give an interpretation of the coefficients of the two variable refinement $D_{\Sh_n}(q,t)$ of the distance enumerator of the Shi hyperplane arrangement $\Sh_n$ in dimensions…
math.CO2006★ 6 cited
Spanning trees in complete uniform hypergraphs and a connection to extended r-Shi hyperplane arrangements
Sivaramakrishnan Sivasubramanian
We give a Cayley type formula to count the number of spanning trees in the complete r-uniform hypergraph for all r >= 3. Similar to the bijection between spanning trees in complete…