5 papers
A pyramid with a Ramsey base is Ramsey
Kenneth Moore
A finite subset of is called a Ramsey set if for any number of colours there exists a dimension such that whenever is -coloured there…
On traces of randomly rolling polytopes
Kenneth Moore, János Pach
Let be a three-dimensional convex polytope resting with one of its faces on the plane. At each step, is allowed to roll over a randomly selected edge of…
Point sets avoiding near-integer distances
Ritesh Goenka, Kenneth Moore
Let , , and . Denote by the maximum number of points in a subset of the closed Euclidean ball of radius in su…
Any 2-coloring of the plane contains monochromatic unit rhombuses
Kenneth Moore, Arsenii Sagdeev
In this note, we prove that any 2-coloring of the plane contains 4 points of the same color forming a rhombus with unit sides and non-unit diagonals, answering a question of Axenov…
One Hundred and Twelve Point Three Degree Theorem
George Tokarsky, Jacob Garber, Boyan Marinov +1
It has been known since Fagnano in 1775 that an acute triangle always has a periodic billiard path, namely the orthic triangle. It is currently unknown whether every obtuse triangl…