activity
20152026
most citedThe improved isoperimetric inequality and the Wigner caustic of planar ovals

26 citations · 65 across the 15 of their papers we have counts for

collaborators

18 papers

math.CO2026

Shuffle Squares in Differentiable Words

Michał Zwierzyński

Experiments on binary run-length differentiability lead to sharp computer-assisted criteria for shuffle squares. Every -word of length greater than is a shuffle square ex…

math.DG2026

Singularities of the Wigner Caustic and the Centre Symmetry Set of Frontal Curves in the Euclidean Plane

Michał Zwierzyński

Motivated by the role of the Wigner caustic in semiclassical phase-space analysis, we extend it, together with the centre symmetry set, from regular planar curves to cooriented fro…

math.DG2026

Invariants of an Affine Reflection Transform

Peter Giblin, Stanisław Janeczko, Michał Zwierzyński

We introduce the affine reflection transform (ART) of an oval relative to an interior point by applying the parallel-tangent involution to chords through and taking the…

math.MG2026

A Sharp Surface-Area Extension of Vaaler's Theorem

Michał Zwierzyński

Karasev proved, in dimensions two and three, a sharp surface-area counterpart of a polyhedral extension of Vaaler's theorem [8, Theorem 1.2]. We remove the dimension restriction. M…

math.DS2026

Area-Normalized Pentagram Map Dynamics: Spectral Flattening and Elliptic Asymptotics

Michał Zwierzyński

The pentagram map sends a polygon to the intersections of consecutive short diagonals. We study its shape dynamics after translating and positively rescaling each iterate to restor…

math.DG2026

Mixed Volumes, the Wigner Caustic, and Isoperimetric Inequalities

Michał Zwierzyński

Let be a convex body and its central symmetral. We study the defects through the even--odd decomp…

math.DG2026

Convex Polygons with Parallel Opposite Sides: Convergence, Reconstruction, and Isoperimetric Inequalities

Izabella Konicer, Bartłomiej Murawski, Bruno Rogala +2

In this paper, we study affine -equidistants of convex polygons with parallel opposite sides (CPPOSes), introduced by M. Craizer et al. (Polygons with Parallel Opposite Sides, D…

math.DG2025

The th Order Preserving Sets and Isoperimetric Type Inequalities for Planar Ovals

Maksymilian Filip Safarewicz, Michał Zwierzyński

In this work, we introduce and investigate a new class of sets, the \textit{th Order Preserving Sets}, arising naturally from the Fourier analysis of support functions associate…

math.GM2024

Artistic Aspects of the Wigner Caustic and the Centre Symmetry Set

Iza Danielewska, Dawid Poławski, Dominika Sterczewska +1

The Wigner caustic and the Centre Symmetry Set of a closed smooth planar curve are known singular sets which generically admit only cusp singularities. Applications of these object…

math.DG2022

The Geometry of the Centre Symmetry Set of a Planar Curve

Dominika Miller, Michał Zwierzyński

The Centre Symmetry Set of a planar curve is the envelope of affine chords of , i.e. the lines joining points on with parallel tangent lines. In this paper we study glob…

math.DG2021

The Singular Evolutoids Set and the Extended Evolutoids Front

M. Zwierzyński

In this paper we introduce the notion of the singular evolutoid set which is the set of all singular points of all evolutoids of a fixed smooth planar curve with at most cusp singu…

math.DG2018★ 13 cited

Singular points of the Wigner caustic and affine equidistants of planar curves

W. Domitrz, M. Zwierzyński

In this paper we study singular points of the Wigner caustic and affine --equidistants of planar curves based on shapes of these curves. We generalize the Blaschke-Süss theorem…

math.DG2018★ 1 cited

The Geometry of the Secant Caustic of a Planar Curve

W. Domitrz, M. C. Romero Fuster, M. Zwierzyński

The secant caustic of a planar curve is the image of the singular set of the secant map of . We analyse the geometrical properties of the secant caustic of a planar curve, i…

math.DG2018★ 12 cited

The Gauss-Bonnet Theorem for coherent tangent bundles over surfaces with boundary and its applications

Wojciech Domitrz, Michał Zwierzyński

In [31,32,33] the Gauss-Bonnet formulas for coherent tangent bundles over compact oriented surfaces (without boundary) were proved. We establish the Gauss-Bonnet theorem for cohere…

math.DG2016★ 7 cited

Isoperimetric equalities for rosettes

M. Zwierzyński

In this paper we study the isoperimetric-type equalities for rosettes, i.e. regular closed planar curves with non-vanishing curvature. We find the exact relations between the lengt…

math.GR2016★ 1 cited

Cubulating mapping tori of some polynomial growth free group automorphisms

Mark Hagen, Daniel T Wise

Let be a finite-rank free group and let have polynomial growth. Let . We give sufficient conditions on that ensure acts fr…

math.PR2016★ 5 cited

How can a clairvoyant particle escape the exclusion process?

Rangel Baldasso, Augusto Teixeira

We study a detection problem in the following setting: On the one-dimensional integer lattice, at time zero, place nodes on each site independently with probability an…

math.DG2015★ 26 cited

The improved isoperimetric inequality and the Wigner caustic of planar ovals

Michał Zwierzyński

The classical isoperimetric inequality in the Euclidean plane states that for a simple closed curve of the length , enclosing a region of the area …