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It is known that all but finitely many leaves of a measured foliated 2-complex of thin type are quasi-isometric to an infinite tree with at most two topological ends. We show that if the foliation is cooriented, and the associated R-tree is…

Geometric Topology · Mathematics 2015-09-01 Ivan Dynnikov , Alexandra Skripchenko

Conventionally, convolutional neural networks (CNNs) process different images with the same set of filters. However, the variations in images pose a challenge to this fashion. In this paper, we propose to generate sample-specific filters…

Computer Vision and Pattern Recognition · Computer Science 2018-12-06 Wei Shen , Rujie Liu

The area of topology optimization of continuum structures of which is allowed to change in order to improve the performance is now dominated by methods that employ the material distribution concept. The typical methods of the topology…

Computational Engineering, Finance, and Science · Computer Science 2013-09-24 Jun-ichi Koga , Jiro Koga , Shunji Homma

We introduce a graph-theoretic framework based on discrete sheaves to diagnose and localize inconsistencies in preference aggregation. Unlike traditional linearization methods (e.g., HodgeRank), this approach preserves the discrete…

Theoretical Economics · Economics 2025-12-03 Karen Sargsyan

Multi-relational clustering is a challenging task due to the fact that diverse semantic information conveyed in multi-layer graphs is difficult to extract and fuse. Recent methods integrate topology structure and node attribute information…

Machine Learning · Computer Science 2023-12-22 Xiaowei Qian , Bingheng Li , Zhao Kang

We reinterpret algebraic de Rham cohomology for a possibly singular complex variety X as sheaf cohomology in the site of smooth schemes over X with Voevodsky's h-topology. Our results extend to the algebraic de Rham complex as well. Our…

Algebraic Geometry · Mathematics 2007-10-23 Ben Lee

In this paper, we formally introduce the concept of a row-sum matrix over an arbitrary group $G$. When $G$ is cyclic, these types of matrices have been widely used to build uniform 2-factorizations of small Cayley graphs (or, Cayley…

Combinatorics · Mathematics 2022-09-23 A. C. Burgess , P. Danziger , A. Pastine , T. Traetta

We investigate the topology of a double cover of a complex affine plane branching along a nodal real line arrangement. We define certain topological 2-cycles in the double plane using the real structure of the arrangement, and calculate…

Algebraic Geometry · Mathematics 2025-05-06 Ichiro Shimada

Local connection forms provide a very useful tool for handling connections on principal bundles, because they ignore any complexities of the total space and, essentially, involve only two fundamental features of the structure group, namely…

Differential Geometry · Mathematics 2013-06-19 Efstathios Vassiliou

In this article we mainly study linear codes over $\mathbb{F}_{2^n}$ and their binary subfield codes. We construct linear codes over $\mathbb{F}_{2^n}$ whose defining sets are the certain subsets of $\mathbb{F}_{2^n}^m$ obtained from…

Information Theory · Computer Science 2023-03-17 Hongwei Liu , Zihao Yu

To investigate the topological structure of Morse flows with a sink on the 2-sphere we use the planar tree as complete topological invariant of the flow. We give a list of all planar tree with at least 7 edges. We use a list of rooted…

Dynamical Systems · Mathematics 2023-05-03 Oleksandr Pryshliak

We develop a family of simple rank one theories built over quite arbitrary sequences of finite hypergraphs. (This extends an idea from the recent proof that Keisler's order has continuum many classes, however, the construction does not…

Logic · Mathematics 2024-07-24 M. Malliaris , S. Shelah

In this paper I will show the problems that are encountered when dealing with uniqueness of connectives in a bilateralist setting within the larger framework of proof-theoretic semantics and suggest a solution. Therefore, the logic 2Int is…

Logic in Computer Science · Computer Science 2022-10-04 Sara Ayhan

We give an idiosyncratic overview of applications of topology to cyber research, spanning the analysis of variables/assignments and control flow in computer programs, a brief sketch of topological data analysis in one dimension, and the use…

Algebraic Topology · Mathematics 2022-03-09 Steve Huntsman , Jimmy Palladino , Michael Robinson

A basic assumption of tiling theory is that adjacent tiles can meet in only a finite number of ways, up to rigid motions. However, there are many interesting tiling spaces that do not have this property. They have "fault lines", along which…

Dynamical Systems · Mathematics 2007-05-23 Natalie Priebe Frank , Lorenzo Sadun

Generic bifurcation theory was classically well developed for smooth differential systems, establishing results for $k$-parameter families of planar vector fields. In the present study we focus on a qualitative analysis of $2$-parameter…

Dynamical Systems · Mathematics 2018-09-11 Douglas Duarte Novaes , Marco Antonio Teixeira , Iris de Oliveira Zeli

Examining cables using many conductor transmission line theory has shed light on the modes supported by various cable types. However, so far the theory disregards the fundamental surface wave mode whose lateral confinement increases with…

Classical Physics · Physics 2021-11-22 Tobias Schaich , Daniel Molnar , Anas Al Rawi , Mike Payne

We prove a structure theorem for the solutions of nonlinear thin two-membrane problems in dimension two. Using the theory of quasi-conformal maps, we show that the difference of the sheets is topologically equivalent to a solution of the…

Analysis of PDEs · Mathematics 2024-05-10 Lorenzo Ferreri , Luca Spolaor , Bozhidar Velichkov

We describe categories of equivariant vector bundles on certain toroidal spherical varieties in linear algebra terms: vector spaces equipped with filtrations, group and Lie algebra actions, and linear maps preserving these structures.

Algebraic Geometry · Mathematics 2009-08-28 Aravind Asok , James Parson

We show that tropicalization of linear series on curves gives rise to two-parameter families of tilings by polymatroids, with one parameter arising from the theory of divisors on tropical curves and the other from the reduction of linear…

Algebraic Geometry · Mathematics 2024-05-08 Omid Amini , Eduardo Esteves