English
Related papers

Related papers: Effective equidistribution in rank 2 homogeneous s…

200 papers

We prove an effective equidistribution theorem for orbits of certain unipotent subgroups in arithmetic quotients of perfect Lie groups with a polynomial error term. Even for semisimple quotients, our result provides the first infinite…

Dynamical Systems · Mathematics 2026-02-27 Zuo Lin

We prove an effective equidistribution theorem for orbits of horospherical subgroups of $\mathrm{SO}(2, 2)$ and $\mathrm{SO}(3, 1)$ in quotients of $\mathrm{SL}_4(\mathbb{R})$ with a polynomial error term. In a forthcoming paper, we will…

Dynamical Systems · Mathematics 2025-08-12 Zuo Lin

We prove effective equidistribution theorems, with polynomial error rate, for orbits of the unipotent subgroups of $\operatorname{SL}_2(\mathbb R)$ in arithmetic quotients of $\operatorname{SL}_2(\mathbb C)$ and $\operatorname{SL}_2(\mathbb…

Dynamical Systems · Mathematics 2022-07-29 Elon Lindenstrauss , Amir Mohammadi , Zhiren Wang

We prove effective equidistribution theorems, with polynomial error rate, for orbits of the unipotent subgroups of $\operatorname{SL}_2(\mathbb R)$ in arithmetic quotients of $\operatorname{SL}_2(\mathbb C)$ and $\operatorname{SL}_2(\mathbb…

Number Theory · Mathematics 2025-09-24 Elon Lindenstrauss , Amir Mohammadi , Zhiren Wang

We prove an effective equidistribution theorem for semisimple closed orbits on compact adelic quotients. The obtained error depends polynomially on the minimal complexity of intermediate orbits and the complexity of the ambient space. The…

Number Theory · Mathematics 2025-03-28 Manfred Einsiedler , Elon Lindenstrauss , Amir Mohammadi , Andreas Wieser

We sketch the proof of an effective equidistribution theorem for one-parameter unipotent subgroups in $S$-arithmetic quotients arising from $\mathbf K$-forms of $\mathrm{SL}_2^{\mathsf n}$ where $\mathbf K$ is a number field. This gives an…

Dynamical Systems · Mathematics 2026-01-16 Elon Lindenstrauss , Amir Mohammadi , Lei Yang

Let $G=$SL$(2,R)\ltimes(R^2)^{\oplus k}$ and let $\Gamma$ be a congruence subgroup of SL$(2,Z)\ltimes(Z^2)^{\oplus k}$. We prove a polynomially effective asymptotic equidistribution result for special types of unipotent orbits in…

Number Theory · Mathematics 2020-04-15 Andreas Strömbergsson , Pankaj Vishe

We prove an effective equidistribution result for periodic orbits of semisimple groups on congruence quotients of an ambient semisimple group. This extends previous work of Einsiedler, Margulis and Venkatesh. The main new feature is that we…

Dynamical Systems · Mathematics 2024-07-18 Andreas Wieser

We prove effective equidistribution, with polynomial rate, for large closed orbits of semisimple groups on homogeneous spaces, under certain technical restrictions (notably, the acting group should have finite centralizer in the ambient…

Dynamical Systems · Mathematics 2007-08-31 M. Einsiedler , G. Margulis , A. Venkatesh

We prove an effective version of the Oppenheim conjecture with a polynomial error rate. The proof is based on an effective equidistribution theorem which in turn relies on recent progress towards restricted projection problem.

Dynamical Systems · Mathematics 2023-05-30 Elon Lindenstrauss , Amir Mohammadi , Zhiren Wang , Lei Yang

We prove the first case of polynomially effective equidistribution of closed orbits of semisimple groups with nontrivial centralizer. The proof relies on uniform spectral gap, builds on, and extends work of Einsiedler, Margulis, and…

Dynamical Systems · Mathematics 2019-04-30 Menny Aka , Manfred Einsiedler , Han Li , Amir Mohammadi

Given any line in the plane, we strengthen the Littlewood conjecture by two logarithms for almost every point on the line, thereby generalising the fibre result of Beresnevich, Haynes, and Velani. To achieve this, we prove an effective…

Dynamical Systems · Mathematics 2023-12-05 Sam Chow , Lei Yang

Let $G=\SL(2,\R)\ltimes(\R^2)^{k}$, let $\Gamma$ be a congruence subgroup of $\SL(2,\Z)\ltimes(\Z^2)^{k}$, and let $u_{\R}=(u_x)_{x\in\R}$ be the one-parameter subgroup of $G$ given by $u_x=\left(\matr 1x01,0\right)$. We prove polynomially…

Dynamical Systems · Mathematics 2026-04-13 Andreas Strömbergsson , Anders Södergren , Pankaj Vishe

Using classical results of Rogers bounding the $L^2$-norm of Siegel transforms, we give bounds on the heights of approximate integral solutions of quadratic equations and error terms in the quantiative Oppenheim theorem of…

Number Theory · Mathematics 2018-02-05 Jayadev S. Athreya , Gregory Margulis

We establish effective versions of Oppenheim's conjecture for generic inhomogeneous quadratic forms. We prove such results for fixed quadratic forms and generic shifts. Our results complement our companion paper where we considered generic…

Number Theory · Mathematics 2022-03-15 Anish Ghosh , Dubi Kelmer , Shucheng Yu

We prove new equidistribution results for Galois orbits of Heegner points with respect to reduction maps at inert primes. The arguments are based on two different techniques: primitive representations of integers by quadratic forms and…

Number Theory · Mathematics 2011-04-19 Dimitar Jetchev , Ben Kane

We prove results towards the equidistribution of certain families of periodic torus orbits on homogeneous spaces, with particular focus on the case of the diagonal torus acting on quotients of $\PGL_n(\R)$. After attaching to each periodic…

Dynamical Systems · Mathematics 2007-05-23 Manfred Einsiedler , Elon Lindenstrauss , Philippe Michel , Akshay Venkatesh

We establish a quantitative version of Oppenheim's conjecture for generic ternary indefinite quadratic forms using an analytic number theory approach. The statements come with power gains and in some cases are essentially optimal

Number Theory · Mathematics 2016-06-15 Jean Bourgain

We prove effective density theorems, with a polynomial error rate, for orbits of the upper triangular subgroup of $\operatorname{SL}_2(\mathbb R)$ in arithmetic quotients of $\operatorname{SL}_2(\mathbb C)$ and $\operatorname{SL}_2(\mathbb…

Dynamical Systems · Mathematics 2022-06-07 Elon Lindenstrauss , Amir Mohammadi

We prove a quantitative version of Oppenheim's conjecture for generic ternary indefinite quadratic forms. Our results are inspired by and analogous to recent results for diagonal quadratic forms due to Bourgain.

Number Theory · Mathematics 2016-06-09 Anish Ghosh , Dubi Kelmer
‹ Prev 1 2 3 10 Next ›