Skip to main content
7 events
when toggle format what by license comment
Jun 18, 2010 at 4:50 comment added Pierre-Yves Gaillard I wrote a tiny complement to this answer: mathoverflow.net/questions/28415/…
Jun 17, 2010 at 10:19 vote accept Nicolò
Jun 17, 2010 at 10:18 comment added Nicolò Wonderful! I choose this as answer for simplicity and for the fact that it works in every infinite dimensional normed space
Jun 17, 2010 at 3:45 comment added Pierre-Yves Gaillard It looks like the best possible answer!
Jun 16, 2010 at 21:15 comment added Matthew Daws Yeah, nice! And it answers my questions: $\ker f$ is always a subspace.
Jun 16, 2010 at 21:13 history edited Nate Eldredge CC BY-SA 2.5
added 78 characters in body
Jun 16, 2010 at 21:06 history answered Nate Eldredge CC BY-SA 2.5