Keyphrases
Billiards
100%
Polygon
80%
Pentagram Map
28%
Billiard Map
26%
Periodic Trajectories
26%
Evolute
23%
Outer Billiards
21%
Hyperbolic Plane
21%
Configuration Space
20%
Tire Tracks
18%
Frieze Pattern
14%
Regular Polygon
13%
Four Vertex Theorem
13%
Integrable
12%
Cusp
12%
Circle Theorem
11%
Periodic Orbits
11%
Circumcenter
11%
Periscope
11%
Planimeter
11%
Differential Geometry
11%
Three-dimensional (3D)
10%
Strictly Convex
10%
Billiard Trajectory
10%
Commuting
9%
In(III)
9%
Smooth Curve
9%
Moduli Space
9%
Integrability
9%
Liouville
9%
Affine
8%
N-dimensional
8%
Birkhoff Billiards
8%
Legendrian
8%
Schwarzian Derivative
8%
Rear-end
8%
Complete Integrability
8%
Hatchet
8%
Cross-ratio
8%
Completely Integrable
8%
Ellipsoid
7%
Euclidean Space
7%
Poisson Structure
7%
Quiver
7%
Affine Space
7%
Bicycle Motion
7%
Bicycle Kinematics
7%
Curve Evolution
7%
Orientation-preserving
7%
Birkhoff
7%
Mathematics
Polygon
85%
Circle
46%
Ellipse
33%
Oval
32%
Pentagram
28%
Plane Curve
28%
Configuration Space
23%
Hyperbolic Plane
21%
Periodic Orbit
18%
Nonexistence
18%
Diffeomorphism
17%
Regular Polygon
17%
Projective
15%
Strictly Convex
14%
Affine Space
13%
Lagrangian
13%
Generating Function
11%
Evolute
11%
Regular Pentagon
11%
Circumcentre
11%
Involutes
11%
Open Problem
11%
Rigidity
11%
Tangent Line
11%
Initial Position
11%
Differential Geometry
11%
Tangent Space
11%
Distinct Point
10%
Dynamical System
10%
Manifold
10%
Parameter Family
10%
Complete Integrability
10%
Projective Geometry
9%
Poisson Structure
9%
Completely Integrable System
9%
Asymptotics
8%
Extremal
8%
Right Angle
8%
Projective Space
8%
Light Ray
8%
Cross ratio
7%
Riemannian Geometry
7%
Ellipsoid
7%
Minkowski
7%
Euclidean Space
7%
Pentagon
6%
Hyperbolic Space
6%
Triangle
6%
Rotation Number
6%
Convex Domain
5%
