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Gusein-Zade, Sabir Medgidovich and Luengo Velasco, Ignacio and Melle Hernández, Alejandro
(2004)
*A power structure over the Grothendieck ring of varieties.*
Mathematical Research Letters, 11
(1).
pp. 49-57.
ISSN 1073-2780

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Official URL: http://intlpress.com/site/pub/pages/journals/items/mrl/content/vols/0011/0001/a006/index.html

## Abstract

Let R be either the Grothendieck semiring (semigroup with multiplication) of complex quasi-projective varieties, or the Grothendieck ring of these varieties, or the Grothendieck ring localized by the class \L of the complex affine line. We define a power structure over these (semi)rings. This means that, for a power series A(t)=1+∑i=1∞[Ai]ti with the coefficients [Ai] from R and for [M]∈R, there is defined a series (A(t))[M], also with coefficients from R, so that all the usual properties of the exponential function hold. In the particular case A(t)=(1−t)−1, the series (A(t))[M] is the motivic zeta function introduced by M. Kapranov. As an application we express the generating function of the Hilbert scheme of points, 0-dimensional subschemes, on a surface as an exponential of the surface.

Item Type: | Article |
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Additional Information: | The authors are thankful to Tomás L. Gómez for useful discussions. Partially supported by the grants RFBR–01–01–00739, INTAS–00–259, NWO–RFBR–047.008.005. The last two authors were partially supported by the grant BFM2001–1488–C02–01. |

Uncontrolled Keywords: | Algebraic-Varieties; Spaces; Geometry |

Subjects: | Sciences > Mathematics > Number theory |

ID Code: | 16623 |

Deposited On: | 04 Oct 2012 08:41 |

Last Modified: | 25 Jun 2018 07:23 |

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