17,442 reputation
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bio website people.math.osu.edu/edgar.2
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visits member for 5 years
seen 5 hours ago

1d
comment Is the ISC kaput
So the quitting time is within the last 10 days.
2d
comment Is the ISC kaput
Yes, the old one at Simon Fraser (oldweb) is OK, but is badly out of date. The address I used is the one in the link in my question... isc.carma.newcastle.edu.au where it moved in 2010.
2d
asked Is the ISC kaput
2d
comment hypergeometric at nearest singularity
This is a good answer. Evans & Stanton point out that the ${}_2F_1$ case in Luke's book is easier than the ${}_3F_2$ they are doing.
2d
accepted hypergeometric at nearest singularity
Oct
19
asked hypergeometric at nearest singularity
Oct
19
comment A criterion of norm null sequences in Banach space
More generally, in a metric space, a sequence $x_n$ converges to $y$ if and only if every subsequence of $x_n$ has a subsequence that converges to $y$. For topological space, you can do this with nets instead of sequences.
Oct
18
comment Is the notation ${}^t g$ for the transpose of a linear transformation intended to be suggestive?
I think the left t is the Bourbaki choice.
Oct
18
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
You say "functionals" and not "linear functionals", right?
Oct
16
awarded  Yearling
Oct
15
comment Is the sequence of Apéry numbers a Stieltjes moment sequence?
I accepted this answer. But anyone reading should see the other answers, too, to get a full discussion.
Oct
15
accepted Is the sequence of Apéry numbers a Stieltjes moment sequence?
Oct
15
comment Are Banach space norms (up to equivalence) unique?
... of course (as noted by Simon) that unbounded $\phi$ cannot be explicitly constructed. And cannot be constructed at all in simple ZF set theory.
Oct
13
comment the meaning of “Cauchy filter” for an arbitrary topological group
So, in fact, "Cauchy filter" is not standard in a general topological group. Instead, "left Cauchy" and "right Cauchy" filters are.
Oct
12
comment How do the compact Hausdorff topologies sit in the lattice of all topologies on a set?
For purposes of bestowing reputation, ask only one question per post. You are more likely to get answers rather than comments.
Oct
11
comment Another question on Borel sets and projections
Looks like Bob may find a book on descriptive set theory to be of interest.
Oct
10
awarded  Nice Answer
Oct
9
comment The Notion of Strong Measurability for Separable Banach Spaces
Yes, in complete measure space, you can redefine your approximations on a set of measure zero.
Oct
3
comment How to study analytically this ODE?
What do you mean by "analytical"?
Sep
30
awarded  Explainer