X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2FTODO;h=b8ceda8fa3defcb3df1a5641ab03eed28c910ee9;hb=12178d0b2943c4fe22c34c57171c794bec6a853a;hp=98314cea72c13f0d58a54f2e16ad0067e740336b;hpb=a7fa05ef3da8b47cc4962de23e1313a5f6ef6374;p=sage.d.git diff --git a/mjo/eja/TODO b/mjo/eja/TODO index 98314ce..b8ceda8 100644 --- a/mjo/eja/TODO +++ b/mjo/eja/TODO @@ -1,3 +1,8 @@ +A. Add tests for orthogonality in the Peirce decomposition. + +B. Add support for a symmetric positive-definite bilinear form in + the JordanSpinEJA. + 1. Add CartesianProductEJA. 2. Check the axioms in the constructor when check != False? @@ -9,15 +14,6 @@ 5. Factor out the unit-norm basis (and operator symmetry) tests once all of the algebras pass. -6. Implement spectral projector decomposition for EJA operators - using jordan_form() or eigenmatrix_right(). I suppose we can - ignore the problem of base rings for now and just let it crash - if we're not using AA as our base field. - -7. Do we really need to orthonormalize the basis in a subalgebra? - So long as we can decompose the operator (which is invariant - under changes of basis), who cares? - -8. Ensure that we can construct all algebras over both AA and RR. - -9. Check that our field is a subring of RLF. +6. Can we make the minimal and characteristic polynomial tests work + for trivial algebras, too? Then we wouldn't need the "nontrivial" + argument to random_eja().