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In this paper, we provide explicit formulas, in terms of the covariances of sample covariances or sample correlations, for the asymptotic covariances of unrotated factor loading estimates and unique variance estimates. These estimates are…

Statistics Theory · Mathematics 2018-11-14 Xingwei Hu

Strassen's asymptotic rank conjecture [Progr. Math. 120 (1994)] claims a strong submultiplicative upper bound on the rank of a three-tensor obtained as an iterated Kronecker product of a constant-size base tensor. The conjecture, if true,…

Data Structures and Algorithms · Computer Science 2023-10-19 Andreas Björklund , Petteri Kaski

We show the existence and uniqueness of invariant foliations about invariant tori in analytic discrete-time dynamical systems. The parametrisation method is used prove the result. Our theory is a foundational block of data-driven model…

Dynamical Systems · Mathematics 2024-03-25 Robert Szalai

Rossby waves (r-modes) in rapidly rotating neutron stars are unstable because of the emission of gravitational radiation. We study saturation of this instability by nonlinear transfer of energy to stellar "inertial" oscillation modes. We…

This work studies existence and regularity questions for attracting invariant tori in three dimensional dissipative systems of ordinary differential equations. Our main result is a constructive method of computer assisted proof which…

Dynamical Systems · Mathematics 2020-01-14 Maciej J. Capinski , Emmanuel Fleurantin , Jason D. Mireles James

The aim of this note is to point out a convexity property with respect to the root lattice for the support of the highest weights that occur in a tensor product of irreducible rational representations of $SL(n)$ over the complex numbers.…

Representation Theory · Mathematics 2021-07-06 Hariharan Narayanan , C. S. Rajan

The slice-rank method, introduced by Tao as a symmetrized version of the polynomial method of Croot, Lev and Pach and Ellenberg and Gijswijt, has proved to be a useful tool in a variety of combinatorial problems. Explicit tensors have been…

Combinatorics · Mathematics 2019-08-15 Simone Costa , Marco Dalai

We prove detailed asymptotics for the number of spanning trees, called complexity, for a general class of discrete tori as the parameters tend to infinity. The proof uses in particular certain ideas and techniques from an earlier paper. Our…

Mathematical Physics · Physics 2011-11-01 Gautam Chinta , Jay Jorgenson , Anders Karlsson

In this letter, we present non linear structures resulting from the saturation of a large scale instability in rotating stratified fluids with small scale forced turbulence which we found in \cite{[1]}. These structures are of helical kinks…

Fluid Dynamics · Physics 2014-06-17 Anatoly Tur , Malik Chabane , Vladimir Yanovsky

The aim of this note is to introduce a stable version of Terao conjecture, using the notion of infinitely stably extendability of vector bundles on $\mathbb P^n$, considered and characterized by I. Coanda in arXiv:0907.4040.

Algebraic Geometry · Mathematics 2016-09-16 Cristian Anghel

Nagao's conjecture relates the rank of an elliptic surface to a limit formula arising from a weighted average of fibral Frobenius traces, and it is further generalized for smooth irreducible projective surfaces by M. Hindry and A. Pacheco.…

Number Theory · Mathematics 2018-04-30 Seoyoung Kim

The purpose of this paper is to define and study systematically some asymptotic invariants associated to base loci of line bundles on smooth projective varieties. We distinguish an open dense subset of the real big cone, called the stable…

Algebraic Geometry · Mathematics 2007-05-23 Lawrence Ein , Robert Lazarsfeld , Mircea Mustata , Michael Nakamaye , Mihnea Popa

A rational pseudo-rotation $f$ of the torus is a homeomorphism homotopic to the identity with a rotation set consisting of a single vector $v$ of rational coordinates. We give a classification for rational pseudo-rotations with an invariant…

Dynamical Systems · Mathematics 2021-02-22 Andres Koropecki , Fabio Armando Tal

For a complex simple Lie algebra $\mathfrak{g}$ or rank $r$, let $\rho$ be the half sum of positive roots and $P(2\rho)\subset \mathbb{R}^r$ be the convex hull of all dominant weights $\lambda$ of the form $\lambda=2\rho-\sum_{i=1}^r…

Representation Theory · Mathematics 2024-03-05 Arzu Boysal

We consider random trigonometric polynomials with general dependent coefficients. We show that under mild hypotheses on the structure of dependence, the asymptotics as the degree goes to infinity of the expected number of real zeros…

Probability · Mathematics 2024-09-24 Jürgen Angst , Oanh Nguyen , Guillaume Poly

We study the space of slice-torus invariants. In particular we characterize the set of values that slice-torus invariants may take on a given knot in terms of the stable smooth slice genus. Our study reveals that the resolution of the local…

Geometric Topology · Mathematics 2024-07-12 Peter Feller , Lukas Lewark , Andrew Lobb

The effect of rotation upon the classical two-layer Rayleigh-Taylor instability is considered theoretically and compared with previous experimental results. In particular we consider a two-layer system with an axis of rotation that is…

Fluid Dynamics · Physics 2016-03-03 Matthew M. Scase , Kyle A. Baldwin , Richard J. A. Hill

We discuss the relation between the concentration of the Brown-York mass and the formation of trapped surfaces in non-spherical massive systems. In particular, we formulate and prove a precise version of the Thorne hoop conjecture in…

General Relativity and Quantum Cosmology · Physics 2015-04-16 Edward Malec , Naqing Xie

In this paper we prove a strong nonstructure theorem for kappa (T)-saturated models of a stable theory T with dop.

Logic · Mathematics 2009-09-25 Tapani Hyttinen , Saharon Shelah

This is my dissertation. Its research object is a symmetric group of permutations acting on a finite set. The density of permutations with a given cycle structure pattern is explored when the group order tends to infinity. New and sharper…

Combinatorics · Mathematics 2016-11-10 Robertas Petuchovas