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math.CO2016
The additive structure of the squares inside rings
David Cushing, G. W. Stagg
When defining the amount of additive structure on a set it is often convenient to consider certain sumsets; Calculating the cardinality of these sumsets can elucidate the set's und…
math.CO2016★ 26 cited
Bakry-Émery curvature functions of graphs
David Cushing, Shiping Liu, Norbert Peyerimhoff
We study the Bakry-Émery curvature function of a vertex in a locally finite graph systematically. Here $\mathcal{K}_{G,x}(\math…