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math.CO2010
Approximations to the Kruskal-Katona theorem
Andrew Frohmader
Approximations to the Kruskal-Katona theorem are stated and proven. These approximations are weaker than the theorem, but much easier to work with numerically.
math.CO2010
Flag f-vectors of three-colored complexes
Andrew Frohmader
The flag f-vectors of three-colored complexes are characterized. This also characterizes the flag h-vectors of balanced Cohen-Macaulay complexes of dimension two, as well as the fl…
math.CO2010★ 1 cited
Flag f-vectors of colored complexes
Andrew Frohmader
It is shown that conditions stronger in a certain sense than color-shifting cannot be placed on the class of colored complexes without changing the characterization of the flag f-v…