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Showing 2016 · math.COShow all
2 papers · 2 filters
math.CO2016
Bihomogeneous symmetric functions
Yuly Billig
We consider two natural gradings on the space of symmetric functions: by degree and by length. We introduce a differential operator that leaves the components of this double gr…
math.CO2016
On the algorithmic complexity of adjacent vertex closed distinguishing colorings number of graphs
Ali Dehghan, Mohsen Mollahajiaghaei
An assignment of numbers to the vertices of graph G is closed distinguishing if for any two adjacent vertices v and u the sum of labels of the vertices in the closed neighborhood o…