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We prove that a triangulated category which is the underlying category of a stable derivator has a filtered enhancement, providing an affirmative answer to a conjecture in [3].

Category Theory · Mathematics 2018-11-20 George Ciprian Modoi

We prove a deviation inequality for noncommutative martingales by extending Oliveira's argument for random matrices. By integration we obtain a Burkholder type inequality with satisfactory constant. Using continuous time, we establish…

Probability · Mathematics 2013-12-31 Marius Junge , Qiang Zeng

We show that the Friedlander-Mazur conjecture holds for a complex smooth projective variety X of dimension three implies the standard conjectures hold for X. This together with a result of Friedlander yields the equivalence of the two…

Algebraic Geometry · Mathematics 2021-11-05 Jin Cao , Wenchuan Hu

We establish dilation theorems for non-tight frames with additional structure, i.e., frames generated by unitary groups of operators and projective unitary representations. This generalizes previous dilation results for Parseval frames due…

Functional Analysis · Mathematics 2012-04-09 Marcin Bownik , John Jasper , Darrin Speegle

We give an elementary and purely arithmetical proof of the strong normalization of Parigot's simply typed $\lambda\mu$-calculus.

Logic · Mathematics 2009-05-12 René David , Karim Nour

We prove a conjecture of Geelen that every proper vertex-minor-closed class of graphs is $\chi$-bounded.

Combinatorics · Mathematics 2021-10-01 James Davies

In a recent paper, Rose proves that certain generalized sum-of-divisor functions are quasi-modular forms for some congruence subgroup and conjectures that these forms are quasi-modular for $\Gamma_1(n)$. Here, we prove this conjecture.

Number Theory · Mathematics 2015-07-30 Hannah Larson

The purpose of this note is to give an affirmative answer to a conjecture appearing in [Integral Transforms Spec. Funct. 26 (2015) 90-95].

Classical Analysis and ODEs · Mathematics 2019-10-03 K. Castillo , M. N. de Jesus , J. Petronilho

We present a simple proof of the surface classification theorem using normal curves. This proof is analogous to Kneser's and Milnor's proof of the existence and uniqueness of the prime decomposition of 3-manifolds. In particular, we do not…

Geometric Topology · Mathematics 2026-02-10 Fethi Ayaz , Marc Kegel , Klaus Mohnke

In [8] (Nakagawa, et.al., IEEE Trans. IT, 2021), we investigated the convergence speed of the Arimoto-Blahut algorithm. In [8], the convergence of the order $O(1/N)$ was analyzed by focusing on the second-order nonlinear recurrence formula…

Information Theory · Computer Science 2022-09-13 Kenji Nakagawa , Yoshinori Takei , Shin-ichiro Hara

For a relative effective divisor $\mathcal{C}$ on a smooth projective family of surfaces $q:\mathcal{S}\rightarrow B$, we consider the locus in $B$ over which the fibres of $\mathcal{C}$ are $\delta$-nodal curves. We prove a conjecture by…

Algebraic Geometry · Mathematics 2017-12-04 Ties Laarakker

In a recent paper, Merca posed three conjectures on congruences for specific convolutions of a sum of odd divisor functions with a generating function for generalized $m$-gonal numbers. Extending Merca's work, we complete the proof of these…

Number Theory · Mathematics 2021-07-22 Kaya Lakein , Anne Larsen

In this paper, we focus on Oliver's $p$-group conjecture. We use elementary method to prove that Oliver's $p$-group conjecture holds for Sylow $p$-subgroups of unitary groups.

Group Theory · Mathematics 2024-12-04 Xingzhong Xu

We prove a uniformization theorem in complex algebraic geometry.

Algebraic Geometry · Mathematics 2010-08-11 Robert Treger

Here we outline a proof for the 4-dimensional smooth Poincare Conjecture.

Geometric Topology · Mathematics 2024-07-31 Selman Akbulut

For a matrix $A$ which satisfies Crouzeix's conjecture, we construct several classes of matrices from $A$ for which the conjecture will also hold. We discover a new link between cyclicity and Crouzeix's conjecture, which shows that…

Functional Analysis · Mathematics 2024-01-01 Ryan O'Loughlin , Jani Virtanen

We revamp the existing theory of Euler class groups and present them in as much generality as possible. We remark on two results of Asok-Fasel and indicate some improvements.

Commutative Algebra · Mathematics 2019-01-31 Mrinal Kanti Das

We prove a diagonalisation theorem for the tautological, or generalised Miller-Morita-Mumford classes of compact, smooth, simply-connected definite $4$-manifolds. Our result can be thought of as a families version of Donaldson's…

Differential Geometry · Mathematics 2023-05-24 David Baraglia

In this note, it is shown that the nilpotency of submatrices of a certain class of adjacency matrices is equivalent to the aperiodic Collatz conjecture.

General Mathematics · Mathematics 2024-12-23 Pietro Paparella

We give an arithmetical proof of the strong normalization of the $\lambda$-calculus (and also of the $\lambda\mu$-calculus) where the type system is the one of simple types with recursive equations on types. The proof using candidates of…

Logic · Mathematics 2009-05-08 René David , Karim Nour