2 papers
math.NT2023
Directed graphs of integers with arcs determined by an arithmetic function
Phakhinkon Napp Phunphayap, Passawan Noppakaew, Prapanpong Pongsriiam
We introduce a new arc in directed graphs of integers. Among other things, we determine the positive integers that have arcs to all except a finite number of positive integers. We…
math.RT2016
Parabolic subalgebras, parabolic buildings and parabolic projection
David M. J. Calderbank, Passawan Noppakaew
Reductive (or semisimple) algebraic groups, Lie groups and Lie algebras have a rich geometry determined by their parabolic subgroups and subalgebras, which carry the structure of a…