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Related papers: The Motivic Picard--Lefschetz Formula

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In this article, we show that for a typical non-uniformly expanding unimodal map, the unique maximizing measure of a generic Lipschitz function is supported on a periodic orbit.

Dynamical Systems · Mathematics 2025-03-11 Bing Gao , Rui Gao

Let $U$ be a smooth scheme over an algebraically closed field $\mathbb K$ of characteristic zero and $f:U\to{\mathbb A}^1$ a regular function, and write $X=$Crit$(f)$, as a closed subscheme of $U$. The motivic vanishing cycle…

Algebraic Geometry · Mathematics 2018-11-27 Vittoria Bussi , Dominic Joyce , Sven Meinhardt

We use a formula of Bultot to compute the motivic zeta function for the toric degeneration of the quartic K3 and its Gross-Siebert mirror dual degeneration. We check for this explicit example that the identification of the logarithm of the…

Algebraic Geometry · Mathematics 2015-05-14 Johannes Nicaise , D. Peter Overholser , Helge Ruddat

We strengthen some results in \'etale (and real \'etale) motivic stable homotopy theory, by eliminating finiteness hypotheses, additional localizations and/or extending to spectra from HZ-modules.

K-Theory and Homology · Mathematics 2021-04-14 Tom Bachmann , Marc Hoyois

We compute the motivic Milnor fiber of a complex plane curve singularity in an inductive and combinatoric way using the extended simplified resolution graph. The method introduced in this article has a consequence that one can study the…

Algebraic Geometry · Mathematics 2017-03-16 Le Quy Thuong

We present a new tool for the calculation of Denef and Loeser's motivic nearby fiber and motivic Milnor fiber: a motivic Fubini theorem for the tropicalization map, based on Hrushovski and Kazhdan's theory of motivic volumes of…

Algebraic Geometry · Mathematics 2019-09-18 Johannes Nicaise , Sam Payne

In 2011 Lemahieu and Van Proeyen proved the Monodromy Conjecture for the local topological zeta function of a non-degenerated surface singularity. We start from their work and obtain the same result for Igusa's p-adic and the motivic zeta…

Algebraic Geometry · Mathematics 2013-06-26 Bart Bories , Willem Veys

Making use of noncommutative motives we relate exceptional collections (and more generally semi-orthogonal decompositions) to motivic decompositions. On one hand we prove that the Chow motive M(X) of every smooth proper Deligne-Mumford…

Algebraic Geometry · Mathematics 2013-03-14 Matilde Marcolli , Goncalo Tabuada

We describe algebraically defined cohomological and homological Albanese and Picard 1-motives (or mixed motives) of any algebraic variety in characteristic zero, generalizing the classical Albanese and Picard varieties. We compute Hodge,…

Algebraic Geometry · Mathematics 2007-05-23 L. Barbieri-Viale , V. Srinivas

We prove a special case of a dynamical analogue of the classical Mordell-Lang conjecture. In particular, let $\phi$ be a rational function with no superattracting periodic points other than exceptional points. If the coefficients of $\phi$…

Number Theory · Mathematics 2009-02-06 Robert L. Benedetto , Dragos Ghioca , Par Kurlberg , Thomas J. Tucker

V. Lunts has recently established Lefschetz fixed point theorems for Fourier-Mukai functors and dg algebras. In the same vein, D. Shklyarov introduced the noncommutative analogue of the Hirzebruch-Riemann-Roch theorem. In this short…

Algebraic Geometry · Mathematics 2013-03-22 Denis-Charles Cisinski , Goncalo Tabuada

In this paper we construct extensions of the Mixed Hodge structure on the fundamental group of a pointed algebraic curve. These extensions correspond to the regulator of certain explicit motivic cohomology cycles in the self product of the…

Algebraic Geometry · Mathematics 2017-08-01 Subham Sarkar , Ramesh Sreekantan

We construct a comparison functor between ($\mathbf{A}^1$-local) tame motives and ($\overline{\square}$-local) log-\'etale motives over a field $k$ of positive characteristic. This generalizes Binda--Park--{\O}stv{\ae}r's comparison for the…

Algebraic Geometry · Mathematics 2025-06-27 Alberto Merici

The aim of this work is to develop a theory parallel to that of motivic complexes based on cycles and correspondences with coefficients in quadratic forms. This framework is closer to the point of view of $\mathbb{A}^1$-homotopy than the…

K-Theory and Homology · Mathematics 2017-08-22 Frédéric Déglise , Jean Fasel

We prove the equivalence between the categories of motives of rigid analytic varieties over a perfectoid field $K$ of mixed characteristic and over the associated (tilted) perfectoid field $K^{\flat}$ of equal characteristic. This can be…

Algebraic Geometry · Mathematics 2019-02-20 Alberto Vezzani

We develop the motivic integration theory over formal Deligne-Mumford stacks over a power series ring of arbitrary characteristic. This is a generalization of the corresponding theory for tame and smooth Deligne-Mumford stacks constructed…

Algebraic Geometry · Mathematics 2024-02-27 Takehiko Yasuda

We propose a suitable substitute for the classical Grothendieck ring of an algebraically closed field, in which any quasi-projective scheme is represented, while maintaining its non-reduced structure. This yields a more subtle invariant,…

Algebraic Geometry · Mathematics 2009-10-06 Hans Schoutens

We describe a new and robust method to prove rigidity results in complex dynamics. The new ingredient is the geometry of the critical puzzle pieces: under control of geometry and ``complex bounds'', two generalized polynomial-like maps…

Dynamical Systems · Mathematics 2018-01-08 Daniel Smania

We introduce a direct image formalism for constructible motivic functions. One deduces a very general version of motivic integration for which a change of variables theorem is proved. These constructions are generalized to the relative…

Algebraic Geometry · Mathematics 2008-05-29 R. Cluckers , F. Loeser

We construct motives over the rational numbers associated with symmetric power moments of Kloosterman sums, and prove that their L-functions extend meromorphically to the complex plane and satisfy a functional equation conjectured by…

Algebraic Geometry · Mathematics 2022-06-14 Javier Fresán , Claude Sabbah , Jeng-Daw Yu
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