X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2FTODO;h=849757608ba571aad69b1b6b84812cefafb34c2c;hb=b259821a73cb75a6d5a81d13256802be023b0fa9;hp=fcba1c0ea2e38a6e4dc9dbb8ba7c860179c08c20;hpb=107a5d3f653f8a4b33c6927110a63770b2be7f07;p=sage.d.git

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index fcba1c0..6223bff 100644
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -1,5 +1,15 @@
-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. Can we hit "x" with the deortho matrix and delegate to the
+   _rational_algebra to speed up minimal_polynomial?
+
+5. In CartesianProductEJA we already know the multiplication table and
+   inner product matrix. Refactor things until it's no longer
+   necessary to duplicate that work.