http://mathforum.org/kb List of forum topics en http://mathforum.org/kb/thread.jspa?messageID=7930006&tstart=0#7930006 independent in R^m. Then for all a in S, |sum a_ju_j|> 0 (the sum will]]> Nov 29, 2012 1:15:09 PM Nov 29, 2012 1:15:09 PM 82ndAve@comcast.net 0 http://mathforum.org/kb/thread.jspa?messageID=7929908&tstart=0#7929908 > On 28/11/2012 20:56, Kaba wrote:
>>]]> Nov 29, 2012 10:07:59 AM Nov 29, 2012 10:07:59 AM schultz@math.fu-berlin.de 1 http://mathforum.org/kb/thread.jspa?messageID=7929888&tstart=0#7929888 > On 28/11/2012 20:56, Kaba wrote:
>>]]> Nov 29, 2012 9:44:20 AM Nov 29, 2012 9:44:20 AM kaba@nowhere.com 0 http://mathforum.org/kb/thread.jspa?messageID=7929753&tstart=0#7929753 > Hi,
>
> An exercise in a book on smooth manifolds asks me to prove]]> Nov 29, 2012 3:08:31 AM Nov 29, 2012 3:08:31 AM zen165943@zen.co.uk 3 http://mathforum.org/kb/thread.jspa?messageID=7929630&tstart=0#7929630 > An m x n matrix A has rank <= k
>
> iff every (k+1) x (k+1) submatrix]]> Nov 28, 2012 6:18:50 PM Nov 28, 2012 6:18:50 PM kaba@nowhere.com 0 http://mathforum.org/kb/thread.jspa?messageID=7929612&tstart=0#7929612 >> An m x n matrix A has rank <= k
>>
>> iff some k x k]]> Nov 28, 2012 6:10:24 PM Nov 28, 2012 6:10:24 PM kaba@nowhere.com 0 http://mathforum.org/kb/thread.jspa?messageID=7929611&tstart=0#7929611 >quasi wrote:
>>Kaba wrote:
Nov 28, 2012 6:05:59 PM Nov 28, 2012 6:05:59 PM quasi@null.set 1 http://mathforum.org/kb/thread.jspa?messageID=7929610&tstart=0#7929610
>Kaba wrote:
Nov 28, 2012 6:01:26 PM Nov 28, 2012 6:01:26 PM quasi@null.set 3 http://mathforum.org/kb/thread.jspa?messageID=7929597&tstart=0#7929597 >quasi wrote:
>> Let m,n be positive integers, and let k be an integer]]> Nov 28, 2012 5:51:27 PM Nov 28, 2012 5:51:27 PM quasi@null.set 4 http://mathforum.org/kb/thread.jspa?messageID=7929587&tstart=0#7929587 > Let m,n be positive integers, and let k be an integer with
> 0 <= k <=]]> Nov 28, 2012 5:13:53 PM Nov 28, 2012 5:13:53 PM kaba@nowhere.com 5