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Related papers: Construction of surfaces with large systolic ratio

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This paper studies the space $X_g\subset \mathcal{M}_g$ consisting of surfaces with filling systoles and its subset, critical points of the systole function. In the first part, we obtain a surface with Teichm\"uller distance…

Geometric Topology · Mathematics 2024-07-24 Yue Gao

The systolic ratio of a contact form on a closed three-manifold is the quotient of the square of the shortest period of closed Reeb orbits by the contact volume. We show that every co-orientable contact structure on any closed…

Symplectic Geometry · Mathematics 2021-03-05 Alberto Abbondandolo , Barney Bramham , Umberto L. Hryniewicz , Pedro A. S. Salomão

We investigate the interaction between systolic geometry and positive scalar curvature through spinorial methods. Our main theorem establishes an upper bound for the two-dimensional stable systole on certain high-dimensional manifolds with…

Differential Geometry · Mathematics 2025-09-30 Shunichiro Orikasa

Let $(M,g_0)$ be a closed Riemannian manifold of dimension $n$, for $3 \leq n \leq 7$, and non-negative Ricci curvature. Let $g = \phi^2 g_0$ be a metric in the conformal class of $g_0$. We show that there exists a smooth closed embedded…

Differential Geometry · Mathematics 2015-10-12 Parker Glynn-Adey , Yevgeny Liokumovich

Let $\Sigma$ be a surface with $\chi (\Sigma) < 0$, and a representation $\rho $ from the fundamental group $\pi_1 (\Sigma)$ into $ \rm{SL} (2 , \mathbb{C})$. We define the \emph{trace systole} of $\rho$, denoted $\mathrm{tys} (\rho)$ as…

Geometric Topology · Mathematics 2023-08-30 Frederic Palesi

No power law systolic freedom is possible for the product of mod $2$ systoles of dimension $1$ and codimension $1$. This means that any closed $n$-dimensional Riemannian manifold $M$ of bounded local geometry obeys the following systolic…

Differential Geometry · Mathematics 2023-10-18 Hannah Alpert , Alexey Balitskiy , Larry Guth

A compact manifold is called Bieberbach if it carries a flat Riemannian metric. Bieberbach manifolds are aspherical, therefore the supremum of their systolic ratio, over the set of Riemannian metrics, is finite by a fundamental result of M.…

Differential Geometry · Mathematics 2014-03-07 Chady Elmir , Jacques Lafontaine

Let $M$ be a closed Riemannian surface of genus $g$. We construct a family of 1-cycles on $M$ that represents a non-trivial element of the k'th homology group of the space of cycles and such that the mass of each cycle is bounded above by…

Differential Geometry · Mathematics 2016-06-08 Yevgeny Liokumovich

For a translation surface, we define the systole to be the length of the shortest saddle connection. We give a characterization of the maxima of the systole function on a stratum, and give a family of examples providing local but nonglobal…

Metric Geometry · Mathematics 2022-03-30 Corentin Boissy , Slavyana Geninska

We prove the $3$-manifold $\RP^3 \# \RP^3$ is of $\Z_{2}$-coefficient homology $(1, 2)$-systolic freedom. Given a Riemannian metric on $\RP^{3}\# \RP^{3}$, we define $\Z_{2}$-coefficient homology $1$-systole as the infimum of lengths of all…

Differential Geometry · Mathematics 2014-12-02 Lizhi Chen

In this paper we examine the geometry of minimal surfaces of arithmetic hyperbolic 3-manifolds. In particular, we give bounds on the totally geodesic 2-systole, construct infinitely many incommensurable manifolds with the same initial…

Geometric Topology · Mathematics 2015-06-30 Benjamin Linowitz , Jeffrey S. Meyer

We prove a universal inequality between the diastole, defined using a minimax process on the one-cycle space, and the area of closed Riemannian surfaces. Roughly speaking, we show that any closed Riemannian surface can be swept out by a…

Differential Geometry · Mathematics 2024-02-05 Florent Balacheff , Stéphane Sabourau

In this paper, we investigate the asymptotic behavior of the non-simple systole, which is the length of a shortest non-simple closed geodesic, on a random closed hyperbolic surface on the moduli space $\mathcal{M}_g$ of Riemann surfaces of…

Geometric Topology · Mathematics 2025-08-21 Yuxin He , Yang Shen , Yunhui Wu , Yuhao Xue

We construct infinite families of closed hyperbolic surfaces that are local maxima for the systole function on their respective moduli spaces. The systole takes values along a linearly divergent sequence $(L_n)_{n\geq 1}$ at these local…

Geometric Topology · Mathematics 2018-09-18 Maxime Fortier Bourque , Kasra Rafi

In this article we explore the relationship between the systole and the diameter of closed hyperbolic orientable surfaces. We show that they satisfy a certain inequality, which can be used to deduce that their ratio has a (genus dependent)…

Geometric Topology · Mathematics 2023-04-03 Florent Balacheff , Vincent Despré , Hugo Parlier

We establish combinatorial versions of various classical systolic inequalities. For a smooth triangulation of a closed smooth manifold, the minimal number of edges in a homotopically non-trivial loop contained in the $1$-skeleton gives an…

Geometric Topology · Mathematics 2015-06-24 Ryan Kowalick , Jean-François Lafont , Barry Minemyer

We study the systolic area (defined as the ratio of the area over the square of the systole) of the 2-sphere endowed with a smooth riemannian metric as a function of this metric. This function, bounded from below by a positive constant over…

Differential Geometry · Mathematics 2007-05-23 Florent Balacheff

The main goal of this note is to show that the study of closed hyperbolic surfaces with maximum length systole is in fact the study of surfaces with maximum length homological systole. The same result is shown to be true for once-punctured…

Geometric Topology · Mathematics 2015-03-17 Hugo Parlier

In this note we study the systoles of convex hypersurfaces in $\mathbb{R}^{2n}$ invariant under an anti-symplectic involution. We investigate a uniform upper bound of the ratio between the systole and the symmetric systole of the…

Symplectic Geometry · Mathematics 2020-07-22 Joontae Kim , Seongchan Kim , Myeonggi Kwon

We obtain the exact values of the systoles of these hyperbolic surfaces of genus $g$ with cyclic symmetries of the maximum order and the next maximum order. Precisely: for genus $g$ hyperbolic surface with order $4g+2$ cyclic symmetry, the…

Geometric Topology · Mathematics 2020-02-26 Sheng Bai , Yue Gao , Shicheng Wang