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math.GT2002
Unusual formulae for the Euler characteristic
Justin Roberts
Everyone knows that the Euler characteristic of a combinatorial manifold is given by the alternating sum of its numbers of simplices. It is shown that there are other linear combin…
math.QA2002★ 1 cited
Asymptotics and 6j-symbols
Justin Roberts
Recent interest in the Kashaev-Murakami-Murakami hyperbolic volume conjecture has made it seem important to be able to understand the asymptotic behaviour of certain special functi…