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QGorensteinIndex -- an option to specify the index of the canonical divisor, if known


When working in a $\mathbb{Q}$-Gorenstein ring $R$, frequently we must find a positive integer $N$ such that $N K_R$ is Cartier. This option allows this search to be bypassed if this integer is already known, by setting QGorensteinIndex => N.

Functions with optional argument named QGorensteinIndex :

For the programmer

The object QGorensteinIndex is a symbol.