Logarithmic Interpretation of the Main Component in Toric Hilbert Schemes
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چکیده
1.1. Fix a surjective morphism of fine monoids π : P → Q, and let j : AQ ↪→ AP be the corresponding closed immersion, where AP := Spec(k[P ]) and AQ := Spec(k[Q]). Assume further that the associated groups P gp and Q are torsion free, and that Q is sharp. Let TP (resp. TQ) denote the torus associated to the group P gp (resp. Q) so that TP acts on AP and TQ acts on AQ. The map π induces an inclusion of tori πT : TQ → TP , and the closed immersion j is compatible with the action of TQ . Define a function h : Q gp → N by
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تاریخ انتشار 2007