X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2FTODO;h=2d93ffb38a772f9409ecdff4153e975cb7c02c0b;hb=44ef5b665217783bbeb05341476d6e02bbc44d4f;hp=280811e41761ed62d61a7b54886e88b7795b3d7b;hpb=8e8f38a7f283ea32535fcbdfdac642b70c08c8ad;p=sage.d.git diff --git a/mjo/eja/TODO b/mjo/eja/TODO index 280811e..2d93ffb 100644 --- a/mjo/eja/TODO +++ b/mjo/eja/TODO @@ -19,7 +19,8 @@ sage: a0 = (1/4)*X[4]**2*X[6]**2 - (1/2)*X[2]*X[5]*X[6]**2 - (1/2)*X[3]*X[4]*X[6 6. Instead of storing a basis multiplication matrix, just make product_on_basis() a cached method and manually cache its entries. The cython cached method lookup should be faster than a - python-based matrix lookup anyway. + python-based matrix lookup anyway. NOTE: we should still be able + to recompute the table somehow. Is this worth it? 7. What the ever-loving fuck is this shit? @@ -27,3 +28,11 @@ sage: a0 = (1/4)*X[4]**2*X[6]**2 - (1/2)*X[2]*X[5]*X[6]**2 - (1/2)*X[3]*X[4]*X[6 sage: e0 = O.monomial(0) sage: e0*[[[[]]]] [[[[]]]]*e0 + +8. In fact, could my octonion matrix algebra be generalized for any + algebra of matrices over the reals whose entries are not real? Then + we wouldn't need real embeddings at all. They might even be fricking + vector spaces if I did that... + +9. Add HurwitzMatrixAlgebra subclass between MatrixAlgebra and + OctonionMatrixAlgebra.