On convergence of stringy motives of wild pn-cyclic quotient singularities
نویسندگان
چکیده
The wild McKay correspondence, a variant of the correspondence in positive characteristics, shows that stringy motives quotient varieties equal some motivic integrals on moduli space Galois covers formal disk. In this paper, we determine when integral converges for case cyclic groups prime power order. As an application, give criterion variety being canonical or log canonical.
منابع مشابه
Wild Quotient Singularities of Surfaces
Let (B,MB) denote a regular local ring of dimension two. Let H be a finite cyclic group acting on B, and let Z := Spec(B). Assume that the action of H on Spec(B) is free off the closed point, and thatMB is the only singular point of Z. Let f : X → Z be a resolution of the singularity, minimal with the property that the irreducible components of f(MB ) are smooth with normal crossings. Such a re...
متن کاملThe Versal Deformation of Cyclic Quotient Singularities
We describe the versal deformation of two-dimensional cyclic quotient singularities in terms of equations, following Arndt, Brohme and Hamm. For the reduced components the equations are determined by certain systems of dots in a triangle. The equations of the versal deformation itself are governed by a different combinatorial structure, involving rooted trees. One of the goals of singularity th...
متن کاملTriangulated Categories of Gorenstein Cyclic Quotient Singularities
We prove there is an equivalence of derived categories between Orlov’s triangulated category of singularities for a Gorenstein cyclic quotient singularity and the derived category of representations of a quiver with relations, which is obtained from a McKay quiver by removing one vertex and half of the arrows. This result produces examples of distinct quivers with relations which have equivalen...
متن کاملOne-Parameter Toric Deformations of Cyclic Quotient Singularities
In the case of two-dimensional cyclic quotient singularities, we classify all oneparameter toric deformations in terms of certain Minkowski decompositions introduced by Altmann [1]. In particular, we describe to which components each such deformation maps, show how to induce each deformation from a versal family, give explicit equations for each deformation, describe the singularities in the ge...
متن کاملOn Exceptional Quotient Singularities
We study four-dimensional and five-dimensional exceptional quotient singularities.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Communications in Algebra
سال: 2021
ISSN: ['1532-4125', '0092-7872']
DOI: https://doi.org/10.1080/00927872.2021.2002884