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Related papers: Kakeya Sets in Cantor directions

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The classical Enestrom-Kakeya theorem establishes upper and lower bounds on the zeros of a polynomial with positive coefficients that are explicit functions of those coefficients. We establish a unifying framework that incorporates this…

Complex Variables · Mathematics 2018-02-06 Aaron Melman

We extend P\'olya's indicator diagram theory to encompass entire functions of order at most 1, allowing functions of maximal type. To do so, we introduce an extension of the complex plane in which indicator diagrams may be unbounded or even…

Complex Variables · Mathematics 2026-05-26 Kei Beauduin

In 1994, J.Cobb constructed a tame Cantor set in $\mathbb R^3$ each of whose projections into $2$-planes is one-dimensional. We show that an Antoine's necklace can serve as an example of a Cantor set all of whose projections are…

Geometric Topology · Mathematics 2022-12-07 Olga Frolkina

We consider (bounded) Besicovitch sets in the Heisenberg group and prove that $L^p$ estimates for the Kakeya maximal function imply lower bounds for their Heisenberg Hausdorff dimension.

Metric Geometry · Mathematics 2017-03-13 Laura Venieri

We define tropical analogues of the notions of linear space and Plucker coordinate and study their combinatorics. We introduce tropical analogues of intersection and dualization and define a tropical linear space built by repeated…

Combinatorics · Mathematics 2007-05-23 David E Speyer

In this paper, we examine linear conditions on finite sets of points in projective space implied by the Cayley-Bacharach condition. In particular, by bounding the number of points satisfying the Cayley-Bacharach condition, we force them to…

Algebraic Geometry · Mathematics 2022-01-07 Jake Levinson , Brooke Ullery

We revisit a class of non-Hermitian topological models that are Galois conjugates of their Hermitian counter parts. Particularly, these are Galois conjugates of unitary string-net models. We demonstrate these models necessarily have real…

Strongly Correlated Electrons · Physics 2022-03-23 Chao-Yi Chen , Bing-Xin Lao , Xin-Yang Yu , Ling-Yan Hung

Rayleigh-L\'evy flights are simplified cosmological tools which capture certain essential statistical properties of the cosmic density field, including hierarchical structures in higher-order correlations, making them a valuable reference…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-14 Reginald Christian Bernardo , Stephen Appleby , Francis Bernardeau , Christophe Pichon

We construct a universal phantom subcategory on the blow-up of the complex projective plane in 11 general points. This phantom subcategory is the orthogonal complement of a non-full exceptional collection of line bundles of maximal length.…

Algebraic Geometry · Mathematics 2025-11-11 Shihao Ma , Yirui Xiong , Song Yang

Extending the methods developed in the author's previous paper and using adapted coordinate systems in two variables, an L^p boundedness theorem is proven for maximal operators over hypersurfaces in R^3 when p > 2. When the best possible p…

Classical Analysis and ODEs · Mathematics 2010-08-25 Michael Greenblatt

This paper studies equable parallelograms whose vertices lie on the integer lattice. Using Rosenberger's Theorem on generalised Markov equations, we show that the g.c.d. of the side lengths of such parallelograms can only be 3, 4 or 5, and…

Number Theory · Mathematics 2021-05-03 Christian Aebi , Grant Cairns

The scalars in vector multiplets of N=2 supersymmetric theories in 4 dimensions exhibit `special Kaehler geometry', related to duality symmetries, due to their coupling to the vectors. In the literature there is some confusion on the…

High Energy Physics - Theory · Physics 2009-10-30 B. Craps , F. Roose , W. Troost , A. Van Proeyen

In this article we prove analogs of Kawamata's canonical bundle formula, Kawamata subadjunction and plt/lc inversion of adjunction for generalized pairs on Kaehler varieties. We also show that a conjecture of BDPPin dimension n-1 implies…

Algebraic Geometry · Mathematics 2024-04-19 Christopher Hacon , Mihai Paun

We formulate the conditional Kolmogorov complexity of x given y at precision r, where x and y are points in Euclidean spaces and r is a natural number. We demonstrate the utility of this notion in two ways. 1. We prove a point-to-set…

Computational Complexity · Computer Science 2016-12-02 Jack H. Lutz , Neil Lutz

The thesis concentrates on two problems in discrete geometry, whose solutions are obtained by analytic, probabilistic and combinatoric tools. The first chapter deals with the strong polarization problem. This states that for any sequence…

Metric Geometry · Mathematics 2019-07-12 Gergely Ambrus

The string coupling of N=2 supersymmetric compactifications of type II string theory on a Calabi-Yau manifold belongs to the so-called universal dilaton hypermultiplet, that has four real scalars living on a quaternion-Kaehler manifold.…

High Energy Physics - Theory · Physics 2015-05-18 Nicola Ambrosetti , Ignatios Antoniadis , Jean-Pierre Derendinger , Panteleimon Tziveloglou

Given an n-tuple {a_1, ..., a_n} of self-adjoint operators on an infinite dimensional Hilbert space H and a positive integer k, there exists a projection p of rank k such that, for each for j = 1, ..., n, pa_jp is a scalar multiple of p.…

Operator Algebras · Mathematics 2007-05-23 Charles A. Akemann , Joel Anderson

In this Paper, for every $n>5$, we show examples of pairs articulated $n$-gons $P$ and $P'$ of different area such that every ordered sequence of internal angles of $P$ coincide with some ordered sequence of internal angles of $P'$.

General Mathematics · Mathematics 2022-01-05 Michele Gaeta , Giovanni Vincenzi

We consider the possibility of charged stable Kaluza-Klein leptons in orbifold models in which all the Standard Model fields propagate (UED models). At tree level the masses of the 1st mode states are nearly identical and kinematics can…

High Energy Physics - Phenomenology · Physics 2009-11-10 Mark Byrne

We prove a generalization of a result of Peres and Schlag on the dimensions of certain exceptional sets of projections and then apply it to a geometric problem.

Classical Analysis and ODEs · Mathematics 2011-07-26 Daniel M. Oberlin