bio | website | iecl.univ-lorraine.fr/… |
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location | Nancy, France | |
age | 64 | |
visits | member for | 4 years, 10 months |
seen | 1 hour ago | |
stats | profile views | 2,921 |
Email: pierre.yves.gaillard at gmail.com
If you have any idea about this MathOverflow question, thanks for letting me know.
Aug 21 |
awarded | Necromancer |
Aug 12 |
asked | Is there a positive integer k such that any endomorphism of any free module over any commutative ring is a linear combination of k idempotents? |
Aug 8 |
comment |
Trace of the identity map in a projective module
PS. I think $M=M/(1-e_i)M$ should be $M_i=M/(1-e_i)M$. |
Aug 7 |
comment |
Trace of the identity map in a projective module
Dear Neil: I'd be most grateful if you could tell me whether what I wrote here is correct. |
Jul 2 |
awarded | Curious |
Jun 12 |
revised |
a naive question about the second dual of a vector space
edit clearly indicated |
Jun 5 |
revised |
Dimension of infinite product of vector spaces
rewrote the answer |
Jun 1 |
revised |
Dimension of infinite product of vector spaces
added EDIT 2 |
May 30 |
revised |
Dimension of infinite product of vector spaces
edit clearly indicated |
May 30 |
comment |
Dimension of infinite product of vector spaces
Dear Todd: This is just to tell you that I posted a minor complement to your great answer as a community wiki answer. |
May 30 |
comment |
dim Hom(V,W) =?
To me, it was invaluable! (Also I now realize - thanks to you, Todd and François - how easy it was to answer my question using the Erdős-Kaplansky Theorem, and how silly my approach was...) |
May 30 |
comment |
Dimension of infinite product of vector spaces
Dear François: Here is a tiny bit of nitpicking. I find your question very nice, but I think it would be more correct to write in your blockquote "a family of nonzero vector spaces" instead of "a family of vector spaces". |
May 30 |
answered | Dimension of infinite product of vector spaces |
May 30 |
awarded | Yearling |
May 30 |
comment |
dim Hom(V,W) =?
Dear Fernando: Thanks for you answer. I especially enjoyed the answer mathoverflow.net/a/49572/461 of Todd Trimble's to the question you linked to! |
May 30 |
accepted | dim Hom(V,W) =? |
May 30 |
awarded | Good Question |
May 30 |
asked | dim Hom(V,W) =? |
May 17 |
comment |
a naive question about the second dual of a vector space
@GeraldEdgar - If $A$ is a $K$-algebra and $B$ is an $A$-module, then $\mathrm{End}_A(B)$ designates the $K$-vector space of all $A$-linear endomorphisms of $B$. |
May 17 |
comment |
a naive question about the second dual of a vector space
@GeraldEdgar - Yes, that's what I'm saying. Don't hesitate to tell me if it's easy, even if it's humiliating for me... Thanks for your comment. |