“…Is there a resolution π : A 3 → A 3 such that this action can be lifted to the resolved X ⊆ A 3 ? The answer to this question is 'yes' and was first given in arbitrary dimension by Villamayor [40]. More precisely, if G acts on X ⊆ A 3 one can find a resolution of X that is a composition of blowups in centers invariant under the action of G. Therefore, 4 One knows for example that a polynomial map ϕ : A n C → A n C is an automorphism if and only if it is bijective; see [23,Lemma II.3.4].…”
Abstract. The courses are Triviality, Tangency, Transversality, Symmetry, Simplicity, Singularity. These characteristic local plates serve as our invitation to algebraic surfaces and their resolution. Please take a seat.
“…Is there a resolution π : A 3 → A 3 such that this action can be lifted to the resolved X ⊆ A 3 ? The answer to this question is 'yes' and was first given in arbitrary dimension by Villamayor [40]. More precisely, if G acts on X ⊆ A 3 one can find a resolution of X that is a composition of blowups in centers invariant under the action of G. Therefore, 4 One knows for example that a polynomial map ϕ : A n C → A n C is an automorphism if and only if it is bijective; see [23,Lemma II.3.4].…”
Abstract. The courses are Triviality, Tangency, Transversality, Symmetry, Simplicity, Singularity. These characteristic local plates serve as our invitation to algebraic surfaces and their resolution. Please take a seat.
“…be the canonical resolution of singularities of X, as in [V,Theorem 7.6.1] or [BM,Theorem 13.2]. Here X l is smooth, the centers C i ⊂ X i are smooth and G-invariant, and the action of G lifts to the entire resolution sequence (1).…”
Abstract. We prove an equivariant form of Hironaka's theorem on elimination of points of indeterminacy. Our argument uses canonical resolution of singularities and an extended version of Sumihiro's equivariant Chow lemma.
“…be the canonical resolution of singularities of X, as in [V,Theorem 7.6.1] or [BM,Theorem 13.2]. Here X l is smooth, the centers C i ⊂ X i are smooth and G-invariant, and the action of G lifts to the entire resolution sequence (1).…”
Abstract. We prove an equivariant form of Hironaka's theorem on elimination of points of indeterminacy. Our argument uses canonical resolution of singularities and an extended version of Sumihiro's equivariant Chow lemma.
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