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Related papers: Nilpotent orbit theorem in $p$-adic Hodge theory

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In this article we prove the irreducibility of the Hilbert scheme of rationnal curves on homogeneous varieties with fixed class in the Chow ring. This result has also been proved by J. F. Thomsen [T] and B. Kim and R. Pandharipande [KP].…

Algebraic Geometry · Mathematics 2007-05-23 Nicolas Perrin

We prove equality of the various $p$-adic period morphisms for smooth, not necessarily proper, schemes. We start with showing that the $K$-theoretical uniqueness criterium we had found for proper smooth schemes extends to proper finite…

Number Theory · Mathematics 2019-11-19 Wiesława Nizioł

The Slodowy slice is a flat Poisson deformation of its nilpotent part, and it was demonstrated by Lehn-Namikawa-Sorger that there is an interesting infinite family of nilpotent orbits in symplectic Lie algebras for which the slice is not…

Representation Theory · Mathematics 2023-11-10 Filippo Ambrosio , Lewis Topley

We prove the Gersten conjecture for $p$-adic \'etale Tate twists for a smooth scheme $X$ in mixed characteristic in the Nisnevich topology. Our main observation is that, while $p$-adic \'etale Tate twists are not $\mathbb A^1$-invariant,…

Algebraic Geometry · Mathematics 2024-11-06 Morten Lüders

We provide an algorithm for computing an effective basis of homology of elliptic surfaces over the complex projective line on which integration of periods can be carried out. This allows the heuristic recovery of several algebraic…

Algebraic Geometry · Mathematics 2025-05-07 Eric Pichon-Pharabod

The aim of this article is to apply a Floer theory to study symmetric periodic Reeb orbits. We define positive equivariant wrapped Floer homology using a (anti-)symplectic involution on a Liouville domain and investigate its algebraic…

Symplectic Geometry · Mathematics 2021-02-10 Joontae Kim , Seongchan Kim , Myeonggi Kwon

We prove the Box Conjecture for pairs of commuting nilpotent matrices, as formulated by Iarrobino et al [28]. This describes the Jordan type of the dense orbit in the nilpotent commutator of a given nilpotent matrix. Our main tool is the…

Combinatorics · Mathematics 2024-04-04 J. Irving , T. Košir , M. Mastnak

In this paper we consider the problem of classification of nilpotent orbits for the pseudo-quaternionic coset manifolds U/H* obtained in the time-like dimensional reduction of N = 2 supergravity models based on homogeneous symmetric special…

High Energy Physics - Theory · Physics 2011-08-01 Pietro Fré , Alexander S. Sorin , Mario Trigiante

We construct an enlargement of the classifying space of mixed Hodge structures with polarized graded quotients, by adding mixed Hodge theoretic version of SL(2)-orbits. This space has a real analytic structure and a log structure with sign.…

Algebraic Geometry · Mathematics 2015-01-14 Kazuya Kato , Chikara Nakayama , Sampei Usui

We prove the first inverse theorem for point--sphere incidence bounds over finite fields in dimensions $d \ge 3$, showing that near-extremality forces algebraic rigidity. While sharp upper bounds have been known for over a decade, the…

Combinatorics · Mathematics 2026-02-12 Shalender Singh , Vishnu Priya Singh

We describe the obstruction to decomposing in degrees $\leq p$ the de Rham complex of a smooth variety over a perfect field $k$ of characteristic $p$ that lifts over $W_2(k)$, and show that there exist liftable smooth projective varieties…

Algebraic Geometry · Mathematics 2025-10-14 Alexander Petrov

In this paper, we first define twisted Rota-Baxter family operators on Hom-associative algebras indexed by a semigroup $\Omega$. Then we introduce and study Hom-NS-family algebras as the underlying structures of twisted Rota-Baxter family…

Rings and Algebras · Mathematics 2024-10-29 Wen Teng , Yunpeng Xiao

We approximate any portion of any orbit of the full diagonal group $A$ in the space of unimodular lattices in $\RR^n$ using a fixed proportion of a compact $A$-orbit. Using those approximations for the appropriate sequence of orbits, we…

Dynamical Systems · Mathematics 2025-01-30 Omri Nisan Solan , Yuval Yifrach

We prove an analogue of the de Rham theorem for polar homology; that the polar homology $HP_q(X)$ of a smooth projective variety $X$ is isomorphic to its $H^{n,n-q}$ Dolbeault cohomology group. This analogue can be regarded as a geometric…

Algebraic Geometry · Mathematics 2007-05-23 B. Khesin , A. Rosly , R. P. Thomas

Construction of hybrid atomic orbitals is proposed as the approximate common eigen states of finite first moment matrices. Their hybridization and orientation can be a-priori tunned as per their anticipated neighbourhood. Their Wannier…

Materials Science · Physics 2021-09-15 Manoar Hossain , Joydev De , Joydeep Bhattacharjee

We show that the existence of noncontractible periodic orbits for compactly supported time-dependent Hamiltonian on the disk cotangent bundle of a Finsler manifold provided that the Hamiltonian is sufficiently large over the zero section.…

Symplectic Geometry · Mathematics 2020-10-22 Wenmin Gong , Jinxin Xue

We discuss some of our work on averages along polynomial sequences in nilpotent groups of step 2. Our main results include boundedness of associated maximal functions and singular integrals operators, an almost everywhere pointwise…

Classical Analysis and ODEs · Mathematics 2023-01-02 Alexandru D. Ionescu , Akos Magyar , Mariusz Mirek , Tomasz Z. Szarek

Let $G$ be a simple algebraic group and $\mathcal O$ a nilpotent orbit in $\mathfrak g$. Let ${\mathbf{CS}}(\mathcal O)$ denote the affine cone over the secant variety of $\overline{\mathbb P\mathcal O}\subset \mathbb P\mathfrak g$. Using…

Algebraic Geometry · Mathematics 2024-12-31 Dmitri I. Panyushev

We introduce new polynomial invariants of a finite-dimensional semisimple and cosemisimple Hopf algebra A over a field by using the braiding structures of A. We investigate basic properties of the polynomial invariants including stability…

Quantum Algebra · Mathematics 2009-07-02 Michihisa Wakui

Using heuristic arguments based on the trace formulas, we analytically calculate the semiclassical two-point correlation form factor for a family of rectangular billiards with a barrier of height irrational with respect to the side of the…

Chaotic Dynamics · Physics 2009-11-11 Olivier Giraud
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