X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2FTODO;h=421e0e9450bd18bab8fc5b9f0c75c738df099080;hb=7c21799d680433b62d48ca79cc2ea8f27e1cd8da;hp=0c3bd156662e20247bdc2206a304e4acadf55ec2;hpb=ef6cbbcaf6e708e327968211b9d11d2e29a7a35b;p=sage.d.git

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index 0c3bd15..421e0e9 100644
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -1,15 +1,10 @@
-1. Add CartesianProductEJA.
+1. Add references and start citing them.
 
-2. Check the axioms in the constructor when check != False?
+2. Profile (and fix?) any remaining slow operations.
 
-3. Add references and start citing them.
+3. When we take a Cartesian product involving a trivial algebra, we
+   could easily cache the identity and charpoly coefficients using
+   the nontrivial factor. On the other hand, it's nice that we can
+   test out some alternate code paths...
 
-4. Implement the octonion simple EJA.
-
-5. Factor out the unit-norm basis (and operator symmetry) tests once
-   all of the algebras pass.
-
-6. Override inner_product(), _max_test_case_size(), et cetera in
-   DirectSumEJA.
-
-7. Switch to QQ in *all* algebras for _charpoly_coefficients().
+4. Conjecture: if x = (x1,x2), then det(x) = det(x1)det(x2).