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We show that every limit of log canonical thresholds of n-variable functions is also a log canonical threshold of an (n-1)-variable function.

Algebraic Geometry · Mathematics 2008-05-07 János Kollár

As fault-tolerant quantum computers scale, certifying the accuracy of computations performed with encoded logical qubits will soon become classically intractable. This creates a critical need for scalable, device-independent certification…

Quantum Physics · Physics 2025-10-08 James Mills , Adithya Sireesh , Dominik Leichtle , Joschka Roffe , Elham Kashefi

We prove Koll\'ar's effective base point free theorem for log canonical pairs.

Algebraic Geometry · Mathematics 2009-07-13 Osamu Fujino

We show that the family of semi log canonical pairs with ample log canonical class and with fixed volume is bounded.

Algebraic Geometry · Mathematics 2017-09-22 Christopher Hacon , James McKernan , Chenyang Xu

We show the existence of canonical heights of subvarieties for bounded sequences of morphisms and give some applications.

Algebraic Geometry · Mathematics 2007-05-23 Shu Kawaguchi

A new syntactic characterization of problems complete via Turing reductions is presented. General canonical forms are developed in order to define such problems. One of these forms allows us to define complete problems on ordered…

Computational Complexity · Computer Science 2014-11-25 Vladimir Naidenko

We prove that a Kawamata log terminal pair has the canonical model.

Algebraic Geometry · Mathematics 2020-04-09 Zhengyu Hu

The special case of closed subsets of C^n is briefly discussed.

Algebraic Topology · Mathematics 2007-09-11 Stephen Semmes

A necessary and sufficient compactness criterion in Schauder Spaces is proved.

Functional Analysis · Mathematics 2023-06-27 M. Lanza de Cristoforis

A resolution of the identity due to canonical coherent states is often proven in the weak operator topology. However, such a resolution with an integral symbol is typically supposed to hold in the strong operator topology associated with…

Quantum Physics · Physics 2024-02-14 Ryo Namiki

This paper considers the problem of canonical-correlation analysis (CCA) (Hotelling, 1936) and, more broadly, the generalized eigenvector problem for a pair of symmetric matrices. These are two fundamental problems in data analysis and…

Machine Learning · Computer Science 2016-05-30 Rong Ge , Chi Jin , Sham M. Kakade , Praneeth Netrapalli , Aaron Sidford

We define the "source" and the "spring" of a log canonical center and use them to solve several problems in higher-codimension adjunction. The main application is to the construction of semi log canonical pairs. Version 2: References…

Algebraic Geometry · Mathematics 2012-11-15 János Kollár

We prove that for each positive integer $n$ there exists a positive number $\epsilon_n$ so that $n$-dimensional toric quotient singularities satisfy the ACC for mld's on the interval $(0,\epsilon_n)$. In the course of the proof, we will…

Algebraic Geometry · Mathematics 2020-09-01 Joaquín Moraga

We compute global log canonical thresholds, or equivalently alpha invariants, of birationally rigid orbifold Fano threefolds embedded in weighted projective spaces as codimension two or three. As an important application, we prove that most…

Algebraic Geometry · Mathematics 2016-04-04 In-Kyun Kim , Takuzo Okada , Joonyeong Won

We show that if the probabilistic logarithmic-space solver or the deterministic nearly logarithmic-space solver for undirected Laplacian matrices can be extended to solve slightly larger subclasses of linear systems, then they can be use to…

Computational Complexity · Computer Science 2020-03-17 Xuangui Huang

For a locally defined real analytic function, we study the relation between the oscillation index of oscillatory integrals and the real log canonical threshold. The former is always negative, and its absolute value is greater than or equal…

Complex Variables · Mathematics 2026-01-21 In-Kyun Kim , Morihiko Saito

Let X be a smooth variety over a field of positive characteristic, and let E be an overconvergent isocrystal on X. We establish a criterion for the existence of a "canonical logarithmic extension" of E to a good compactification of X. In…

Number Theory · Mathematics 2007-05-23 Kiran S. Kedlaya

We prove an upper bound on the log canonical threshold of a hypersurface that satisfies a certain power condition and use it to prove several generalizations of Igusa's conjecture on exponential sums, with the log-canonical threshold in the…

Number Theory · Mathematics 2019-03-20 Raf Cluckers , Mircea Mustaţǎ , Kien Huu Nguyen

In this paper, we investigate the multiplicities and the log canonical thresholds of abelian quotient complete intersection singularities in term of the special datum. Moreover we give bounds of the multiplicity of abelian quotient complete…

Commutative Algebra · Mathematics 2019-08-06 Kohsuke Shibata

This paper presents a combinatorial analog of topological complexity for finite spaces. We demonstrate that this coincides with the genuine topological complexity of the original finite space, and constitutes an upper bound for the…

Combinatorics · Mathematics 2019-03-22 Kohei Tanaka
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