X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2FTODO;h=421e0e9450bd18bab8fc5b9f0c75c738df099080;hb=7c21799d680433b62d48ca79cc2ea8f27e1cd8da;hp=fcba1c0ea2e38a6e4dc9dbb8ba7c860179c08c20;hpb=107a5d3f653f8a4b33c6927110a63770b2be7f07;p=sage.d.git

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index fcba1c0..421e0e9 100644
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -1,5 +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. Conjecture: if x = (x1,x2), then det(x) = det(x1)det(x2).