|Bill Allombert on Thu, 01 Sep 2016 09:59:05 +0200|
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|Re: Isometry testing of lattices|
On Fri, Aug 26, 2016 at 10:56:21AM -0700, Watson Ladd wrote: > Dear Pariniks, > > I've noticed that we have an implementation of lattice isometry > computation that is used for determining the equivalence of quadratic > forms. Unfortunately I have a problem that requires this computation > for lattices, and the relation between lattices and quadratic forms is > not quite as clean as one might hope when trying to compute stronger > invariants. > > Is there a function that exposes isometry testing for lattices in an > ambient quadratic space, or will I have to write it myself? How is your lattice given ? It seems to me you could just chose a basis and use the Gram matrix of your lattice as a quadratic form. Cheers, Bill.