On Wed, Mar 12, 2014 at 11:35 AM, James Toll <james@jtoll.com> wrote:

Coming from a finance background, differences in terminology between finance, physics, math, and statistics is par for the course. I’ll have to be better about understanding the terminology from a math perspective and will try to keep that in mind when posting to this list.

On deeper reflection, I realize it's more complicated than that. Because there are
at least two meanings in math.

The lattices on hackage are all about posets and meets and joins, tracing back to the work of Birkhoff in that subspecialization of algebra known as order theory.

Then there are the lattices in sphere packings and geometric number theory and 'lattice'-based cryptography, cf ntru.

One could say that the geometric lattices are closer to binomial lattices, but not really. I wonder why 'binomial tree' isn't perfectly cromulent.

-- Kim-Ee