7,918 reputation
11036
bio website
location
age
visits member for 3 years, 3 months
seen 13 hours ago

olivier dot begassat dot cours at gmail dot com


Jul
31
reviewed Close Lebesgue's Measure
Jul
31
reviewed Close analysis of Sequences and subsequence.
Jul
31
reviewed Close A multiple choice question on finite group
Jul
31
reviewed Close Surjective, Injective, Bijective Functions from $\mathbb Z$ to itself
Jul
31
reviewed Approve suggested edit on The definition of the right regular representation
Jul
30
reviewed Close Length of sides and type of triangle
Jul
30
revised Nth Term of Fractions
edited tags
Jul
30
reviewed Close Finding $\sin$ and $\cos$ value from known $\tan$ value
Jul
30
revised Determining Total Assets, Total Liabilities From a Financial Statement with Missing Values
edited tags
Jul
30
reviewed Edit suggested edit on How to prove that two sets are equaivalent
Jul
30
revised How to prove that two sets are equaivalent
changed tag
Jul
30
reviewed Edit suggested edit on Nth Term of Fractions
Jul
30
revised Nth Term of Fractions
edited tags
Jul
30
reviewed Edit suggested edit on Determining Total Assets, Total Liabilities From a Financial Statement with Missing Values
Jul
30
revised Determining Total Assets, Total Liabilities From a Financial Statement with Missing Values
edited tags
Jul
30
comment Convergence of a Cauchy sequence of matrices
You could a sequence whose sequence of partial sums oscillates between $0$ and $1$, for instance, $1,-1/2,-1/2,1/4,1/4,1/4,1/4,-1/8,-1/8\dots$
Jul
30
comment Convergence of a Cauchy sequence of matrices
There are also bounded counter examples, more in line with the question.
Jul
30
comment Convergence of a Cauchy sequence of matrices
What you describe (the limit of $\| C_{n+1}-C_n\|$ being $0$) does not mean that $C_n$ is Cauchy, and it doesn't imply convergence of the sequence. It is true however that the space of $p\times q$ real matrices is complete.
Jul
30
reviewed Approve suggested edit on Why is integration so much harder than differentiation?
Jul
29
reviewed Reject suggested edit on An inequality I am stuck on