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相关论文: Fiber of Persistent Homology on Morse functions

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Persistent homology (PH) has been widely applied to graph data to extract topological features. However, little attention has been paid to how different distance functions on a graph affect the resulting persistence barcodes and their…

代数拓扑 · 数学 2026-02-17 Eunwoo Heo , Byeongchan Choi , Jae-Hun Jung

In this article we show that the braid type of a set of $1$-periodic orbits of a non-degenerate Hamiltonian diffeomorphism on a surface is stable under perturbations which are sufficiently small with respect to the Hofer metric $d_{\rm…

动力系统 · 数学 2021-12-22 Marcelo R. R. Alves , Matthias Meiwes

Let $\pi: P\to B$ be a locally trivial fiber bundle over a connected CW complex $B$ with fiber equal to the closed symplectic manifold $(M,\om)$. Then $\pi$ is said to be a symplectic fiber bundle if its structural group is the group of…

辛几何 · 数学 2007-05-23 Francois Lalonde , Dusa McDuff

We prove that the boundary distance map of a smooth compact Finsler manifold with smooth boundary determines its topological and differentiable structures. We construct the optimal fiberwise open subset of its tangent bundle and show that…

微分几何 · 数学 2021-08-16 Maarten V. De Hoop , Joonas Ilmavirta , Matti Lassas , Teemu Saksala

We present a machine learning approach that leverages persistent homology to classify bacterial flagellar motors into two functional states: rotated and stalled. By embedding protein structural data into a topological framework, we extract…

生物大分子 · 定量生物学 2025-12-19 Zakaria Lamine , Abdelatif Hafid , Mohamed Rahouti

We study fibered partially hyperbolic diffeomorphisms. We show that as long as certain topological obstructions vanish and as long as homological minimum expansion dominates the distortion on the fibers that a fibered partially hyperbolic…

动力系统 · 数学 2025-11-04 Jonathan DeWitt , Meg Doucette , Oliver Wang

We introduce here a natural functional associated to any $b \in QH_* (M, \omega)$: \emph{spectral length functional}, on the space of "generalized paths" in $ \text {Ham}(M, \omega)$, closely related to both the Hofer length functional and…

微分几何 · 数学 2011-06-14 Yasha Savelyev

We prove that every bounded finely plurisubharmonic function can be locally (in the pluri-fine topology) written as the difference of two usual plurisubharmonic functions. As a consequence finely plurisubharmonic functions are continuous…

复变函数 · 数学 2009-06-12 Said El Marzguioui , Jan Wiegerinck

For a given compact Hausdorff space $X$, we construct the space $OS_{f}(X)$ of normed, order-preserving, weakly additive, positively homogeneous and semi-additive functionals (for brevity, semi-additive functionals) and it is proved that…

一般拓扑 · 数学 2020-11-13 Kh. ~Kh. ~Kurbanov , A. ~Ya. ~Ishmetov

We introduce in this paper a field theory on symplectic manifolds that are fibered over a real surface with interior marked points and cylindrical ends. We assign to each such object a morphism between certain tensor products of quantum and…

辛几何 · 数学 2014-11-11 Francois Lalonde

Given a Morse function on a manifold whose moduli spaces of gradient flow lines for each action window are compact up to breaking one gets a bidirect system of chain complexes. There are different possibilities to take limits of such a…

辛几何 · 数学 2009-11-11 Kai Cieliebak , Urs Frauenfelder

We consider the homotopy type of maps between symplectic surface whose graphs form symplectic submanifolds of the product. We give a purely topological model for this space in terms of maps with constrained numbers of pre-images. We use…

辛几何 · 数学 2007-05-23 Joseph Coffey

The present paper mainly presents, for example, explicit classifications of compact smooth manifolds having non-empty boundaries and simple structures where the dimensions are general. Studies of this type is fundamental and important. They…

一般拓扑 · 数学 2021-06-21 Naoki Kitazawa

Under certain conditions, we describe the homotopy type of the homo-topy fibre of the inclusion map F\_n(X) $\rightarrow$ $\prod$\_1^n X for the n-th configuration space F\_n(X) of a topological manifold X without boundary such that dim(X)…

几何拓扑 · 数学 2016-08-29 Marek Golasinski , Daciberg Lima Gonçalves , John Guaschi

A classical result in Morse theory is the determination of the homotopy type of the loop space of a manifold. In this paper, we study this result through the lens of discrete Morse theory. This requires a suitable simplicial model for the…

代数拓扑 · 数学 2024-07-18 Lacey Johnson , Kevin Knudson

We characterize general pseudo-harmonic morphisms from a Riemannian manifold to a Hermitian manifold as pseudo horizontally weakly conformal maps with an additional property. We study to what extent we can (locally) describe these…

微分几何 · 数学 2007-12-18 Radu Slobodeanu

This paper initiates a systematic study of the relation of commensurability of surface automorphisms, or equivalently, fibered commensurability of 3-manifolds fibering over the circle. We show that every hyperbolic fibered commensurability…

几何拓扑 · 数学 2011-04-04 Danny Calegari , Hongbin Sun , Shicheng Wang

3-D shape is important to chemistry, but how important? Machine learning works best when the inputs are simple and match the problem well. Chemistry datasets tend to be very small compared to those generally used in machine learning so we…

机器学习 · 计算机科学 2023-04-18 Ella Gale

A homeomorphism f of a manifold M is called H_1-transitive if there is a transitive lift of an iterate of f to the universal Abelian cover \tM. Roughly speaking, this means that f has orbits which repeatedly and densely explore all elements…

动力系统 · 数学 2008-04-15 Philip Boyland

In this paper, we introduce and study sequential versions of several fibrewise homotopy invariants, including parametrized topological complexity, parametrized (subspace) homotopic distance. We investigate their basic properties, establish…

代数拓扑 · 数学 2026-01-30 Navnath Daundkar , Abhishek Sarkar , Ankur Sarkar