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We introduce a function of the density of states for periodic Jacobi matrices on trees and prove a useful formula for it. This allows new, streamlined proofs of the gap labeling and Aomoto index theorems. We prove a version of this new…

Spectral Theory · Mathematics 2023-09-04 Jess Banks , Jonathan Breuer , Jorge Garza Vargas , Eyal Seelig , Barry Simon

In this paper, we proved a special case of the DDVV Conjecture.

Differential Geometry · Mathematics 2008-10-31 Timothy Choi , Zhiqin Lu

We present a conjecture for expressing the coefficients in the Cayley-Hamilton theorem for supermatrices in terms of supertraces. The conjecture is tested for several supermatrix dimensions and unique results are obtained. Generating…

Mathematical Physics · Physics 2010-03-22 Sotirios Bonanos , Kiyoshi Kamimura

A review of Finite Gap Jacobi Matrices.

Spectral Theory · Mathematics 2013-01-24 Jacob S. Christiansen , Barry Simon , Maxim Zinchenko

We give a sketch for an alternative proof of a recent result by J. Tseng.

Number Theory · Mathematics 2009-09-23 Nikolay G. Moshchevitin

We prove that the Tate conjecture in codimension $1$ over a finitely generated field follows from the same conjecture for surfaces over its prime subfield. In positive characteristic, this is due to de Jong--Morrow over $\mathbf{F}_p$ and…

Number Theory · Mathematics 2024-01-03 Bruno Kahn

We classify the matrices M which correspond to finite categories

Category Theory · Mathematics 2010-07-20 Samer Allouch

The article presents the proof of Casas-Alvero conjecture.

Number Theory · Mathematics 2017-05-09 Edward Dobrowolski

We develop relative oscillation theory for Jacobi matrices which, rather than counting the number of eigenvalues of one single matrix, counts the difference between the number of eigenvalues of two different matrices. This is done by…

Spectral Theory · Mathematics 2009-04-23 Kerstin Ammann , Gerald Teschl

We give a new proof of the Mordell-Lang conjecture in positive characteristic for finitely generated subgroups. We also make some progress towards the full Mordell-Lang conjecture in positive characteristic.

Number Theory · Mathematics 2013-12-02 Paul Ziegler

We prove Dejean's conjecture. Specifically, we show that Dejean's conjecture holds for the last remaining open values of n, namely 15 <= n <= 26.

Combinatorics · Mathematics 2009-05-22 James Currie , Narad Rampersad

We prove sharp uniqueness results for a wide class of one-dimensional discrete evolutions. The proof is based on a construction from the theory of complex Jacobi matrices combined with growth estimates of entire functions.

Classical Analysis and ODEs · Mathematics 2019-03-27 Yurii Lyubarskii , Eugenia Malinnikova

We show that Vojta's conjecture for some rational surfaces is related to the $abc$ conjecture. More specifically, we prove that Vojta's conjecture on these surfaces implies a special case of the $abc$ conjecture, while the $abc$ conjecture…

Number Theory · Mathematics 2016-01-26 Yu Yasufuku

We give a new proof of a_4\phi_3 summation due to G.E. Andrews and confirm another_4\phi_3 summation conjectured by him recently. Some variations of these two_4\phi_3 summations are also given.

Combinatorics · Mathematics 2010-12-14 Victor J. W. Guo

In this paper we show that a conjecture of Stephen Yau on highest weights of invariant Jacobians is true for arbitrary connected semisimple algebraic groups.

Representation Theory · Mathematics 2012-04-30 Nanhua Xi

We show that in order to decide whether a given probability measure is laminate it is enough to verify Jensen's inequality in the class of extremal non-negative rank-one convex integrands. We also identify a subclass of these extremal…

Analysis of PDEs · Mathematics 2019-11-12 André Guerra

We give a counterexample of Morrison's cone conjecture for a strict Calabi-Yau threefold.

Algebraic Geometry · Mathematics 2022-11-21 Keiji Oguiso

In the paper we complete a case by case proof of Reeder's Conjecture started in our previous work, proving the conjecture for simple Lie algebras of type $D$ and for the exceptional cases.

Representation Theory · Mathematics 2021-08-17 Sabino Di Trani

We present an improved incremental selection algorithm of the selection algorithm presented in [1] and prove all the selected conjectures.

Artificial Intelligence · Computer Science 2025-11-04 Jovial Cheukam Ngouonou , Ramiz Gindullin , Claude-Guy Quimper , Nicolas Beldiceanu , Remi Douence

We prove a conjecture due to Gica (Fibonacci Quarterly, 2008). Our proof is simple, uses only elementary abstract algebra, and generalizes to other recursive sequences.

Number Theory · Mathematics 2025-08-12 Menny Aka