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We prove the existence and describe limiting curves resulting from deviations in partial sums in the ergodic theorem for cylindrical functions and polynomial (self-similar) adic systems. For a general ergodic measure-preserving…

Dynamical Systems · Mathematics 2017-01-27 Aleksei Minabutdinov

On a projective surface it is well-known that the set of curves orthogonal to a nef line bundle is either finite or uncountable. We show that this dichotomy fails in higher dimension by constructing a nef line bundle on a threefold which is…

Algebraic Geometry · Mathematics 2014-10-17 John Lesieutre , John Christian Ottem

For some class of geometric flows, we obtain the (logarithmic) Sobolev inequalities and their equivalence up to different factors directly and also obtain the long time non-collapsing and non-inflated properties, which generalize the…

Differential Geometry · Mathematics 2017-07-07 Shouwen Fang , Tao Zheng

We prove that the intersection cohomology (together with the perverse and the Hodge filtrations) for the moduli space of one-dimensional semistable sheaves supported in an ample curve class on a toric del Pezzo surface is independent of the…

Algebraic Geometry · Mathematics 2023-06-21 Davesh Maulik , Junliang Shen

We prove that certain vector bundles over surfaces are ample if they are so when restricted to divisors, certain numerical criteria hold, and they are semistable (with respect to $\det(E)$). This result is a higher-rank version of a theorem…

Algebraic Geometry · Mathematics 2023-11-15 Indranil Biswas , Vamsi Pritham Pingali

We prove a quantitative version of the non-uniform hyperbolicity of the Teichm\"uller geodesic flow. Namely, at each point of any Teichm\"uller flow line, we bound the infinitesimal spectral gap for variations of the Hodge norm along the…

Geometric Topology · Mathematics 2020-05-29 Ian Frankel

Let $C$ be an elliptic curve, $w\in C$, and let $S\subset C$ be a finite subset of cardinality at least $3$. We prove a Torelli type theorem for the moduli space of rank two parabolic vector bundles with determinant line bundle $\mathcal…

Algebraic Geometry · Mathematics 2020-08-20 Thiago Fassarella , Luana Justo

In this paper, we prove that the admissible canonical bundle of the universal family of curves is a big adelic line bundle, and apply it to prove a uniform Bogomolov-type theorem for curves over global fields of all characteristics. This…

Number Theory · Mathematics 2024-05-01 Xinyi Yuan

We prove the equivalence of two seemingly very different ways of generalising Rademacher's theorem to metric measure spaces. One such generalisation is based upon the notion of forming partial derivatives along a very rich structure of…

Metric Geometry · Mathematics 2015-12-02 David Bate

Given a complex projective surface with an ADE singularity and p_{g}=0, we construct ADE bundles over it and its minimal resolution. Furthermore, we descibe their minuscule representation bundles in terms of configurations of (reducible)…

Algebraic Geometry · Mathematics 2013-01-04 Yunxia Chen , Naichung Conan Leung

We give an alternative proof of the general chain rule for functions of bounded variation ([ADM90]), which allows to compute the distributional differential of $\varphi\circ F$, where $\varphi\in \mathrm{LIP}(\mathbb{R}^m)$ and…

Functional Analysis · Mathematics 2023-07-13 Camillo Brena , Nicola Gigli

We present two possible generalisations of Roth's approximation theorem on proper adelic curves, assuming some technical conditions on the behavior of the logarithmic absolute values. We illustrate how tightening such assumptions makes our…

Number Theory · Mathematics 2023-05-16 Paolo Dolce , Francesco Zucconi

In this paper we construct the analogue of Dedekind eta function for odd dimensional CY manifolds. We use the theory of determinant line bundles. We constructed a canonical holomorphic section $\eta^{N}$ of some power of the determinant…

Algebraic Geometry · Mathematics 2007-05-23 Andrey Todorov

Boundary differentiability is shown for solutions of nondivergence elliptic equations with unbounded drift

Analysis of PDEs · Mathematics 2019-04-09 Yongpan Huang

We prove that an open manifold with nonnegative Ricci curvature, linear volume growth and noncollapsed ends always splits off a line at infinity. This completes the final step to prove the existence of isoperimetric sets given large volumes…

Differential Geometry · Mathematics 2024-06-11 Xingyu Zhu

We consider an elliptic system with regular H{\"o}lderian weight and exponential nonlinearity or with weight and boundary singularity, and, Dirichlet condition. We prove the boundedness of the volume of the solutions to those systems on the…

Analysis of PDEs · Mathematics 2022-01-06 Samy Skander Bahoura

We give optimal estimates on the variation of the differential and modular heights within an isogeny class of abelian varieties defined over the function field of a curve (in any characteristic). We also prove a parallelogram inequality for…

Number Theory · Mathematics 2025-03-19 Richard Griffon , Samuel Le Fourn , Fabien Pazuki

We show that assuming lower bounds on the Ricci curvature and the injectivity radius the absolute value of certain characteristic numbers of a Riemannian manifold, including all Pontryagin and Chern numbers, is bounded proportionally to the…

Differential Geometry · Mathematics 2021-05-18 Daniel Luckhardt

We determine the cones of effective and nef divisors on the toroidal compactification of the ball quotient model of the moduli space of complex cubic surfaces with a chosen line. From this we also compute the corresponding cones for the…

Algebraic Geometry · Mathematics 2025-03-26 Sebastian Casalaina-Martin , Samuel Grushevsky , Klaus Hulek

We prove a sharp isoperimetric inequality for measured Finsler manifolds having non-negative Ricci curvature and Euclidean volume growth. We also prove a rigidity result for this inequality, under the additional hypotheses of boundedness of…

Differential Geometry · Mathematics 2024-06-05 Davide Manini
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