Betti numbers of the conormal module of licci rings
2021
We establish lower bounds for the Betti numbers of the conormal module for licci ideals in a regular local ring. In particular, for a licci Gorenstein ideal I, the i-th Betti number of I/I
$$I/I^{2}$$
is at least $$5f_{2i-1}$$
, for $$i\ge 1$$
, where $$f_{n}$$
is the n-th Fibonacci number.
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