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math.CO2009★ 2 cited
Odd-dimensional Charney-Davis conjecture
Swiat R. Gal, Tadeusz Januszkiewicz
More than once we have heard that the Charney-Davis Conjecture makes sense only for odd-dimensional spheres. This is to point out that in fact it is also a statement about even-dim…
math.CO2005★ 147 cited
Real Root Conjecture fails for five and higher dimensional spheres
Swiatoslaw R. Gal
A construction of convex flag triangulations of five and higher dimensional spheres, whose h-polynomials fail to have only real roots, is given. We show that there is no such examp…