3 papers
math.CO2025
Roux schemes which carry association schemes locally
Alexander L. Gavrilyuk, Jesse Lansdown, Akihiro Munemasa +1
A roux scheme is an association scheme formed from a special "roux" matrix and the regular permutation representation of an associated group. They were introduced by Iverson and Mi…
math.CO2019
A family of hemisystems on the parabolic quadrics
Jesse Lansdown, Alice C. Niemeyer
We constuct a family of hemisystems of the parabolic quadric , for all ranks and all odd prime powers , that admit …
math.CO2017
The binary -analogue of the Fano plane has a trivial automorphism group
John Bamberg, Ferdinand Ihringer, Jesse Lansdown +1
A -analogue of a -design is a set of subspaces (of dimension ) of a finite vector space over a field of order such that each subspace is contained in a con…