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相关论文: On Duistermaat-Heckman measure for filtered linear…

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Let M be a smooth complex projective variety, bearing a K\"ahler symplectic form \omega and a Hamiltonian action of a torus T, with finitely many fixed points M^T. One standard form of the Duistermaat-Heckman theorem gives a formula for M's…

辛几何 · 数学 2022-02-04 Allen Knutson

Let $X$ be a smooth projective variety. We construct partial Okounkov bodies associated to Hermitian pseudo-effective line bundles $(L,\phi)$ on $X$. We show that partial Okounkov bodies are universal invariants of the singularity of…

代数几何 · 数学 2025-06-11 Mingchen Xia

We explain how complexity of rational points on projective varieties can be interpreted via the theories of Chow forms and Okounkov bodies. Precisely, we study discrete measures on filtered linear series and build on work of Boucksom and…

代数几何 · 数学 2022-08-16 Nathan Grieve

The purpose of the present paper is to set up a formalism inspired from non-Archimedean geometry to study K-stability. We first provide a detailed analysis of Duistermaat-Heckman measures in the context of test configurations,…

代数几何 · 数学 2016-12-01 Sébastien Boucksom , Tomoyuki Hisamoto , Mattias Jonsson

We associate to a filtration of a graded linear series of a big line bundle a concave function on the Okounkov body whose law with respect to Lebesgue's measure describes the asymptotic distribution of the jumps of the filtration. As a…

代数几何 · 数学 2019-02-20 Sebastien Boucksom , Huayi Chen

We associate to a test configuration of an ample line bundle a filtration of the section ring of the line bundle. Using the recent work of Boucksom-Chen we get a concave function on the Okounkov body whose law with respect to Lebesgue…

复变函数 · 数学 2019-02-20 David Witt Nystrom

We introduce and study measures and densities (= geometric measures) on differentiable stacks, using a rather straightforward generalization of Haefliger's approach to leaf spaces and to transverse measures for foliations. In general we…

微分几何 · 数学 2020-04-15 Marius Crainic , João Nuno Mestre

In his work on log-concavity of multiplicities, Okounkov showed in passing that one could associate a convex body to a linear series on a projective variety, and then use convex geometry to study such linear systems. Although Okounkov was…

代数几何 · 数学 2008-05-30 Robert Lazarsfeld , Mircea Mustata

We study sigma-ideals and regularity properties related to the "filter-Laver" and "dual-filter-Laver" forcing partial orders. An important innovation which enables this study is a dichotomy theorem proved recently by Miller [1]. [1] Arnold…

逻辑 · 数学 2016-12-14 Yurii Khomskii

We associate convex bodies to a wide class of graded G-algebras where G is a connected reductive group. These convex bodies give information about the Hilbert function as well as multiplicities of irreducible representations appearing in…

代数几何 · 数学 2012-03-30 Kiumars Kaveh , Askold G. Khovanskii

In this paper the metric theory of Diophantine approximation associated with the small linear forms is investigated. Khintchine-Groshev theorems are established along with Hausdorff measure generalization without the monotonic assumption on…

数论 · 数学 2012-12-14 Mumtaz Hussain , Simon Kristensen

This note is an addendum to our earlier work \cite{humi}. In \cite{humi}, we studied a Hamiltonian action for a generalized Calabi-Yau manifold and showed that the Duistermaat-Heckman theorem holds. The purpose of this note is to show that…

微分几何 · 数学 2007-05-23 Yasufumi Nitta

This report derives a generalized, converted measurement Kalman filter for the class of filtering problems with a linear state equation and nonlinear measurement equation, for which a bijective mapping exists between the state and…

信号处理 · 电气工程与系统科学 2025-02-13 Steven V. Bordonaro , Tod E. Luginbuhl , Michael J. Walsh

In this paper we solve a problem posed by H. Bommier-Hato, M. Engli\v{s} and E.H. Youssfi in [3] on the boundedness of the Bergman-type projections in generalized Fock spaces. It will be a consequence of two facts: a full description of the…

复变函数 · 数学 2017-12-15 Carme Cascante , Joan Fàbrega , Daniel Pascuas

In this article, we study Wasserstein-type metrics and corresponding barycenters for mixtures of a chosen subset of probability measures called atoms hereafter. In particular, this works extends what was proposed by Delon and Desolneux [A…

最优化与控制 · 数学 2023-01-20 Geneviève Dusson , Virginie Ehrlacher , Nathalie Nouaime

Let $L$ be a holomorphic line bundle on a compact complex manifold $X$ of dimension $n,$ and let $e^{-\phi}$ be a continuous metric on $L.$ Fixing a measure $d\mu$ on $X$ gives a sequence of Hilbert spaces consisting of holomorphic sections…

复变函数 · 数学 2008-05-20 Robert Berman , David Witt Nystrom

We use Gelfand-Tsetlin diagrams to write down the weight multiplicity function for the Lie algebra sl_k(C) (type A_{k-1}) as a single partition function. This allows us to apply known results about partition functions to derive interesting…

组合数学 · 数学 2007-05-23 Sara Billey , Victor Guillemin , Etienne Rassart

We introduce a notion of continuous crystal analogous, for general Coxeter groups, to the combinatorial crystals introduced by Kashiwara in representation theory of Lie algebras. We use a generalization of the Littelmann path model to show…

表示论 · 数学 2013-07-15 Philippe Biane , Philippe Bougerol , Neil O'Connell

While the existing stochastic control theory is well equipped to handle dynamical systems with stochastic uncertainties, a paradigm shift using distance measure based decision making is required for the effective further exploration of the…

最优化与控制 · 数学 2025-12-02 Venkatraman Renganathan , Sei Zhen Khong

While the exact separability probability of 8/33 for two-qubit states under the Hilbert-Schmidt measure has been reported by Huong and Khoi [\href{https://doi.org/10.1088/1751-8121/ad8493}{J.Phys.A:Math.Theor.{\bf57}, 445304(2024)}],…

量子物理 · 物理学 2026-03-13 Lin Zhang , Xiaohan Jiang , Bing Xie
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