Trends in Differential Geometry and Algebraic Topology

A special issue of Axioms (ISSN 2075-1680). This special issue belongs to the section "Geometry and Topology".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 520

Special Issue Editor


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Guest Editor
Department of Mathematics Education, Chungbuk National University, Cheongju 28644, Republic of Korea
Interests: differential geometry and algebraic topology; geometric structures on higher bundles; generalized cohomology theories and their equivariant, differential, and twisted refinements

Special Issue Information

Dear Colleague,

We are pleased to invite you to contribute to a Special Issue of Axioms titled "Trends in Differential Geometry and Algebraic Topology." This issue aims to showcase cutting-edge research and novel perspectives at the intersection of these two fundamental areas of mathematics.

As a recognized expert in the field, your contribution would be invaluable in shaping the discourse on recent developments and future directions. We welcome original research articles, comprehensive reviews, and insightful perspectives that explore the following:

  • Advances in differential geometric structures and their applications, including Riemannian and symplectic geometry;
  • Higher category theory, homotopy theory, homology theory, algebraic K-theory;
  • Interplay between differential geometry and algebraic topology;
  • Index theory, noncommutative geometry;
  • Emerging computational methods in geometric and topological analysis;
  • Applications of differential geometry and algebraic topology in physics, data science, or other disciplines.

We are excited about the possibility of featuring your work in this Special Issue and contributing to the advancement of these vital mathematical fields.

We look forward to the prospect of your valuable contribution.

Dr. Byungdo Park
Guest Editor

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Keywords

  • differential geometry
  • algebraic topology
  • Riemannian geometry
  • symplectic geometry
  • symplectic topology
  • homotopy algebra
  • homotopy theory
  • homology theory
  • category theory
  • algebraic K-theory
  • topological K-theory
  • index theory
  • noncommutative geometry
  • string theory
  • quantum field theory

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Published Papers (1 paper)

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Research

12 pages, 267 KiB  
Article
An Improvement of the Lower Bound on the Maximum Number of Halving Lines for Sets in the Plane with an Odd Number of Points
by Javier Rodrigo, Mariló López, Danilo Magistrali and Estrella Alonso
Axioms 2025, 14(1), 62; https://doi.org/10.3390/axioms14010062 - 16 Jan 2025
Viewed by 347
Abstract
In this paper, we give examples that improve the lower bound on the maximum number of halving lines for sets in the plane with 35, 59, 95, and 97 points and, as a consequence, we improve the current best upper bound of the [...] Read more.
In this paper, we give examples that improve the lower bound on the maximum number of halving lines for sets in the plane with 35, 59, 95, and 97 points and, as a consequence, we improve the current best upper bound of the rectilinear crossing number for sets in the plane with 35, 59, 95, and 97 points, provided that a conjecture included in the literature is true. As another consequence, we also improve the lower bound on the maximum number of halving pseudolines for sets in the plane with 35 points. These examples, and the recursive bounds for the maximum number of halving lines for sets with an odd number of points achieved, give a new insight in the study of the rectilinear crossing number problem, one of the most challenging tasks in Discrete Geometry. With respect to this problem, it is conjectured that, for all n multiples of 3, there are 3-symmetric sets of n points for which the rectilinear crossing number is attained. Full article
(This article belongs to the Special Issue Trends in Differential Geometry and Algebraic Topology)
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