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In this note we study the behavior of symplectic capacities of convex domains in the classical phase space with respect to symplectic $p$-products. As an application, by using a "tensor power trick", we show that it is enough to prove the…

Symplectic Geometry · Mathematics 2023-09-29 Pazit Haim-Kislev , Yaron Ostrover

A strong version of a conjecture of Viterbo asserts that all normalized symplectic capacities agree on convex domains. We review known results showing that certain specific normalized symplectic capacities agree on convex domains. We also…

Symplectic Geometry · Mathematics 2020-10-06 Jean Gutt , Michael Hutchings , Vinicius G. B. Ramos

We prove that the cylindrical capacity of a dynamically convex domain in $\mathbb{R}^4$ agrees with the least symplectic area of a disk-like global surface of section of the Reeb flow on the boundary of the domain. Moreover, we prove the…

Symplectic Geometry · Mathematics 2024-12-05 Oliver Edtmair

In this note, we show that the strong Viterbo conjecture holds true on any convex toric domain, and that the Viterbo's volume-capacity conjecture holds for the product of a $1$-unconditional convex body $A\subset\mathbb{R}^{n}$ and its…

Symplectic Geometry · Mathematics 2020-08-21 Kun Shi , Guangcun Lu

In this work we discuss a conjecture of Viterbo relating the symplectic capacity of a convex body and its volume. The conjecture states that among all 2n-dimensional convex bodies with a given volume the euclidean ball has maximal…

Symplectic Geometry · Mathematics 2007-05-23 Shiri Artstein-Avidan , Yaron Ostrover

We introduce a new normalization condition for symplectic capacities, which we call cube normalization. This condition is satisfied by the Lagrangian capacity and the cube capacity. Our main result is an analogue of the strong Viterbo…

Symplectic Geometry · Mathematics 2022-08-30 Jean Gutt , Miguel Pereira , Vinicius G. B. Ramos

In this note we apply the billiard technique to deduce some results on Viterbo's conjectured inequality between volume of a convex body and its symplectic capacity. We show that the product of a permutohedron and a simplex (properly related…

Metric Geometry · Mathematics 2018-04-26 Alexey Balitskiy

A long-standing conjecture states that all normalized symplectic capacities coincide on the class of convex subsets of ${\mathbb R}^{2n}$. In this note we focus on an asymptotic (in the dimension) version of this conjecture, and show that…

Symplectic Geometry · Mathematics 2015-09-08 Efim D. Gluskin , Yaron Ostrover

In this work we prove a Brunn-Minkowski-type inequality in the context of symplectic geometry and discuss some of its applications.

Symplectic Geometry · Mathematics 2007-12-27 Shiri Artstein-Avidan , Yaron Ostrover

In this note we link symplectic and convex geometry by relating two seemingly different open conjectures: a symplectic isoperimetric-type inequality for convex domains, and Mahler's conjecture on the volume product of centrally symmetric…

Metric Geometry · Mathematics 2015-01-14 Shiri Artstein-Avidan , Roman Karasev , Yaron Ostrover

For a convex domain in the standard Euclidean symplectic space which is invariant under a linear anti-symplectic involution $\tau$ we show that its Ekeland-Hofer-Zehnder capacity is equal to the $\tau$-symmetrical symplectic capacity of it.

Symplectic Geometry · Mathematics 2020-08-04 Kun Shi , Guangcun Lu

We study some particular cases of Viterbo's conjecture relating volumes of convex bodies and actions of closed characteristics on their boundaries, focusing on the case of a Hamiltonian of classical mechanical type, splitting into summands…

Metric Geometry · Mathematics 2020-02-27 Roman Karasev , Anastasia Sharipova

We state a conjecture about the volume of symplectically self-polar convex bodies and show that it is equivalent to Mahler's conjecture concerning the volume of a convex body and its Euclidean polar. We also establish lower and upper bounds…

Metric Geometry · Mathematics 2025-12-02 Mark Berezovik , Roman Karasev

In this note we consider two topics involving the relationship between the symplectic capacity and the mean width of convex bodies in $\mathbb{R}^{2n}$. We first describe an alternative path from the symplectic Brunn-Minkowski inequality of…

Symplectic Geometry · Mathematics 2026-02-10 Jonghyeon Ahn , Ely Kerman

In this paper, we compare the symplectic (co)homology capacity with the spectral capacity in the relative case. This result establishes a chain of inequalities of relative symplectic capacities, which is an analogue of the non-relative…

Symplectic Geometry · Mathematics 2025-04-15 Jonghyeon Ahn

We use positive S^1-equivariant symplectic homology to define a sequence of symplectic capacities c_k for star-shaped domains in R^{2n}. These capacities are conjecturally equal to the Ekeland-Hofer capacities, but they satisfy axioms which…

Symplectic Geometry · Mathematics 2018-10-24 Jean Gutt , Michael Hutchings

In this note we study the expected value of certain symplectic capacities of randomly rotated centrally symmetric convex bodies in the classical phase space.

Symplectic Geometry · Mathematics 2017-04-05 Efim D. Gluskin , Yaron Ostrover

We first provide a classical analysis proof of a version of the Alexandroff-Bakelman-Pucci inequality (ABP) for compactly supported $C^2$ functions in dimension $2$, inspired by the symplectic geometry proof method of Viterbo, which avoids…

Analysis of PDEs · Mathematics 2026-05-14 Daniel Maienshein , Juan J. Manfredi

While symplectic manifolds have no local invariants, they do admit many global numerical invariants. Prominent among them are the so-called symplectic capacities. Different capacities are defined in different ways, and so relations between…

Symplectic Geometry · Mathematics 2007-05-23 K. Cieliebak , H. Hofer , J. Latschev , F. Schlenk

We study the minimum volume ellipsoid estimator associates to a cloud of points in phase space. Using as a natural measure of uncertainty the symplectic capacity of the covariance ellipsoid we find that classical uncertainties obey…

Mathematical Physics · Physics 2015-05-19 Maurice de Gosson
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