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This article gives an introduction to arithmetic motivic integration in the context of p-adic integrals that arise in representation theory. A special case of the fundamental lemma is interpreted as an identity of Chow motives.

Representation Theory · Mathematics 2007-05-23 Thomas C. Hales

We associate canonical virtual motives to definable sets over a field of characteristic zero. We use this construction to show that very general p-adic integrals are canonically interpolated by motivic ones.

Algebraic Geometry · Mathematics 2007-12-06 J. Denef , F. Loeser

This is a short announcement and summary of the results of arxiv:1111.7057, arxiv.org:1111.4405, and Appendix B to arxiv:1208.1945. In particular, we emphasize the exposition of the ideas related to model theory and motivic integration, and…

Representation Theory · Mathematics 2013-09-04 Raf Cluckers , Julia Gordon , Immanuel Halupczok

This survey paper, to appear in he proceedings of the Miami Winter School ``Geometric Methods in Algebra and Number Theory'', is concerned with extending classical results \`a la Ax-Kochen-Er{\v{s}}ov to $p$-adic integrals in a motivic…

Algebraic Geometry · Mathematics 2007-05-23 R. Cluckers , F. Loeser

We use the theory of motivic integration in order to give a geometric explanation of the behavior of some p-adic integrals.

Algebraic Geometry · Mathematics 2008-12-12 Karl Rökaeus

It is shown that the values of Harish-Chandra distribution characters on definable compact subsets of the set of topologically unipotent elements of symplectic or special orthogonal p-adic groups can be expressed as the trace of Frobenius…

Representation Theory · Mathematics 2007-05-23 Julia Gordon

A functional equation for the motivic integral corresponding to the Milnor number of an arc is derived using the Denef-Loeser formula for the change of variables. Its solution is a function of five auxiliary parameters, it is unique up to…

Algebraic Geometry · Mathematics 2012-08-22 E. Gorsky

Inspired by p-adic (and real) principal value integrals, we introduce motivic principal value integrals associated to multi-valued rational differential forms on smooth algebraic varieties. We investigate the natural question whether (for…

Algebraic Geometry · Mathematics 2019-05-01 Willem Veys

We prove a motivic enhancement of the classical Picard--Lefschetz formula. Our proof is completely motivic, and yields a description of the motivic nearby cycles at a quasi-homogeneous singularity, as well as its monodromy, in terms of an…

Algebraic Geometry · Mathematics 2025-10-15 Ran Azouri , Emil Jacobsen

This paper concerns a class of orbital integrals in Lie algebras over p-adic fields. The values of these orbital integrals at the unit element in the Hecke algebra count points on varieties over finite fields. The construction, which is…

Representation Theory · Mathematics 2007-05-23 Clifton Cunningham , Thomas C. Hales

We give a motivic proof of a character formula for depth zero supercuspidal representations of $p$-adic SL(2). We begin by finding the virtual Chow motives for the character values of all depth zero supercuspidal representations of $p$-adic…

Representation Theory · Mathematics 2008-08-19 Clifton Cunningham , Julia Gordon

We introduce spaces of exponential constructible functions in the motivic setting for which we construct direct image functors in the absolute and relative cases. This allows us to define a motivic Fourier transformation for which we get…

Algebraic Geometry · Mathematics 2011-01-28 R. Cluckers , F. Loeser

This is an attempt at an elementary exposition, with examples, of the theory of motivic integration developed by R. Cluckers and F. Loeser, with the view towards applications in representation theory of p-adic groups.

Representation Theory · Mathematics 2008-11-14 Julia Gordon , Yoav Yaffe

We prove that if a smooth projective algebraic variety of dimension less or equal to three has a unit type integral $K$-motive, then its integral Chow motive is of Lefschetz type. As a consequence, the integral Chow motive is of Lefschetz…

Algebraic Geometry · Mathematics 2018-03-29 Sergey Gorchinskiy

The geometric motivic Poincar\'e series of a variety, which was introduced by Denef and Loeser, takes into account the classes in the Grothendieck ring of the sequence of jets of arcs in the variety. Denef and Loeser proved that this series…

Algebraic Geometry · Mathematics 2010-11-17 Helena Cobo Pablos , Pedro Daniel Gonzalez Perez

The goal of this paper is to define a certain Chow weight structure for the category of Voevodsky's motivic complexes with integral coefficients (as described by Cisinski and Deglise) over any excellent finite-dimensional separated scheme…

Algebraic Geometry · Mathematics 2013-12-31 Mikhail V. Bondarko

We study upper bounds, approximations, and limits for functions of motivic exponential class, uniformly in non-Archimedean local fields whose characteristic is $0$ or sufficiently large. Our results together form a flexible framework for…

Algebraic Geometry · Mathematics 2018-03-13 Raf Cluckers , Julia Gordon , Immanuel Halupczok

We generalize the motivic incarnation morphism from the theory of arithmetic integration to the relative case, where we work over a base variety S over a field k of characteristic zero. We develop a theory of constructible effective Chow…

Algebraic Geometry · Mathematics 2016-09-07 Johannes Nicaise

In this paper we prove motivic versions of the Langlands-Shelstad Fundamental Lemma and Ng\^o's Geometric Stabilization. To achieve this, we follow the strategy from the recent proof by Groechenig, Wyss and Ziegler which avoided the use of…

Algebraic Geometry · Mathematics 2026-02-12 Arthur Forey , François Loeser , Dimitri Wyss

We develop the Denef-Loeser motivic integration to the equivariant motivic integration and use it to prove the full integral identity conjecture for regular functions.

Algebraic Geometry · Mathematics 2021-08-10 Quy Thuong Lê , Hong Duc Nguyen
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