4 papers
On Borel orbits of quadratic forms in characteristic 2
Yasmine B. Sanderson
We consider the spherical variety of quadratic forms over a quadratically closed field of characteristic 2, and determine its orbits for the action of the Borel subgroup of upper t…
On infinite words avoiding a finite set of squares
Yasmine B. Sanderson
Building an infinite square-free word by appending one letter at a time while simultaneously avoiding the creation of squares is most likely to fail. When the alphabet has two lett…
Effective Generation of Subjectively Random Binary Sequences
Yasmine B. Sanderson
We present an algorithm for effectively generating binary sequences which would be rated by people as highly likely to have been generated by a random process, such as flipping a f…
On the hypersurface orbital varieties of sl(N,C)
Elise Benlolo, Yasmine B. Sanderson
We study the structure of hypersurface orbital varieties of sl(N,C) (those that are hypersurfaces in the nilradical of some parabolic subalgebra) and how information about this str…