eja: special subalgebra handling for Cartesian product EJAs.

[sage.d.git] / mjo / eja / TODO

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index 529f70fd633bf36275c63282a05614f1109a7df0..a5e81b910c68f59edb9d306b391d6d6f4b521f2c 100644 (file)
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -2,24 +2,16 @@
 
 2. Profile (and fix?) any remaining slow operations.
 
 
 2. Profile (and fix?) any remaining slow operations.
 

-3. Every once in a long while, the test
-
-       sage: set_random_seed()
-       sage: x = random_eja().random_element()
-       sage: x.is_invertible() == (x.det() != 0)
-
-   in eja_element.py returns False. Example:
-
-       sage: J1 = ComplexHermitianEJA(2)
-       sage: J2 = TrivialEJA()
-       sage: J = cartesian_product([J1,J2])
-       sage: x = J.from_vector(vector(QQ, [-1, -1/2, -1/2, -1/2]))
-       sage: x.is_invertible()
-       True
-       sage: x.det()
-       0
-
-4. When we take a Cartesian product involving a trivial algebra, we
+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...
    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. Add dimension bounds on any tests over AA that compute element
+   subalgebras.
+
+5. The rational_algebra() stuff doesn't really belong in classes that
+   don't derive from RationalBasisEJA or its as-yet-nonexistent
+   element class.
+
+6. Drop "FiniteDimensional" everywhere.