Reputation
9,805
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
11 30
Newest
 Necromancer
Impact
~187k people reached

Jun
11
comment What special role plays the function $\pi^{\frac x\pi}$ in analysis?
What is $\psi$?
Jun
7
revised Inverting a complex function
spelling
Jun
6
answered What does this definition of $C^k$ surface mean?
Jun
5
answered Converge of a sequence in $L^p(\mathbb{R}^3)$
Jun
5
answered Inverting a complex function
May
30
comment Behavior of a Solution to Heat equation Compactly Supported in Time
Isn't running into problems and solution being large exactly what we want?
May
30
comment Behavior of a Solution to Heat equation Compactly Supported in Time
Ok, I found it. What prevents you from applying the uniqueness part of Proposition 5.1 to produce contradiction? Smoothness in time?
May
30
comment Behavior of a Solution to Heat equation Compactly Supported in Time
I have a paperback edition, and cannot find the remark. Can you give a section reference?
May
25
revised Compactness of an operator involving the resolvent of laplacian
added 4 characters in body
May
17
revised Problem about Ricci Flow
added 68 characters in body
Apr
25
answered Radii problem in a power series
Mar
22
comment show $\sum_{i=1}^Nx_i\bar{y_i}$ is defined
Square summability would be enough, which is weaker than absolute convergence.
Mar
21
awarded  Necromancer
Mar
17
awarded  Enlightened
Mar
17
awarded  Nice Answer
Feb
11
comment oblique derivative smoothness of harmonic functions
@Andrew: I overlooked the condition $f\in C(S)$, but I am pretty sure your statement is true. I take back the smoothness statement though. I am not sure what you mean by "which assume that solutions are from ..." but the Schauder estimates you mention imply additional regularity, given that the solution has some minimal regularity to start with.
Feb
11
answered oblique derivative smoothness of harmonic functions
Feb
1
revised Convergence of a crazy power series
added 3 characters in body
Feb
1
answered Convergence of a crazy power series
Feb
1
comment A power series problem, find ROC
$|\sin x|\leq|x|$ is a good bound when $x$ is small, but for large $x$ one should use $|\sin x|\leq1$.