A two-point set is a subset of the plane which meets every line in exactly two points. We discuss previous work on the topological symmetries of a two-point set, and show that there exist subgroups of S1 which do not leave any two-point set invariant. Further, we show that two-point sets may be chosen to be topological groups, in which case they are also homogeneous
Let S be a two-colored set of n points in general position in the plane. We show that S admits at le...
In this note, we use the result that the group of isometries of a Finsler space is a Lie transformat...
AbstractA stable plane is a topological geometry with the properties that (i) any two points are joi...
AbstractA two-point set is a subset of the plane which meets every line in exactly two points. We di...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
AbstractA two-point set is a subset of the plane which meets every planar line in exactly two-points...
We prove the existence of homogeneous n-point sets (i.e., subsets of the plane which eet every line ...
A two-point set is a subset of the plane which meets every line in exactly two points. By working in...
This thesis concerns two-point sets, which are subsets of the real plane which intersect every line ...
summary:A subset of the plane is called a two point set if it intersects any line in exactly two poi...
summary:A subset of the plane is called a two point set if it intersects any line in exactly two poi...
For two curves in a plane or two surfaces in ordinary space various projective invariants have been ...
summary:We construct an example of a homogeneous space which is of point-countable but not of counta...
Let S be a two-colored set of n points in general position in the plane. We show that S admits at le...
In this note, we use the result that the group of isometries of a Finsler space is a Lie transformat...
AbstractA stable plane is a topological geometry with the properties that (i) any two points are joi...
AbstractA two-point set is a subset of the plane which meets every line in exactly two points. We di...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
A two-point set is a subset of the plane which meets every planar line in exactly two-points. We dis...
AbstractA two-point set is a subset of the plane which meets every planar line in exactly two-points...
We prove the existence of homogeneous n-point sets (i.e., subsets of the plane which eet every line ...
A two-point set is a subset of the plane which meets every line in exactly two points. By working in...
This thesis concerns two-point sets, which are subsets of the real plane which intersect every line ...
summary:A subset of the plane is called a two point set if it intersects any line in exactly two poi...
summary:A subset of the plane is called a two point set if it intersects any line in exactly two poi...
For two curves in a plane or two surfaces in ordinary space various projective invariants have been ...
summary:We construct an example of a homogeneous space which is of point-countable but not of counta...
Let S be a two-colored set of n points in general position in the plane. We show that S admits at le...
In this note, we use the result that the group of isometries of a Finsler space is a Lie transformat...
AbstractA stable plane is a topological geometry with the properties that (i) any two points are joi...