6,775 reputation
1726
bio website math.arizona.edu/~nhenscheid
location Tucson, AZ
age 27
visits member for 1 year, 5 months
seen 36 mins ago

Studying for an applied math PhD at the University of Arizona. BS & MS from Western Washington University. When I'm not doing math, I'm climbing rocks.


Apr
10
comment Significance of squared in meters per second squared
It's better to think of it as a (meter per second) per second, i.e. (m/s)/s.
Apr
8
comment Why are function spaces typically defined on open sets?
Okay, the part about differentiability makes perfect sense...not sure why I didn't think about that.
Apr
8
accepted Why are function spaces typically defined on open sets?
Apr
8
comment Why are function spaces typically defined on open sets?
@copper.hat do you maybe have an example of a function/property that only make sense for open sets? (I would imagine some kind of topoligist's sine curve...?)
Apr
8
asked Why are function spaces typically defined on open sets?
Apr
4
comment Recommend Fourier Analysis Workbook or online examples
Stein and Shakarchi is a decent place to start, lots of good exercises.
Mar
31
comment Fourier Transform, Geophysics, Signal Analysis
@Sabyasachi sorry, I was looking at the OP's posted link, trying to understand their question.
Mar
31
revised Fourier Transform, Geophysics, Signal Analysis
added 12 characters in body; edited tags
Mar
31
comment Fourier Transform, Geophysics, Signal Analysis
I don't see $\omega_0=1$ anywhere. They're just telling you that $\omega_0$ is the frequency in radians, and $f_0$ is the frequency in cycles per second (Hertz).
Mar
13
comment Is deconvolution simply division in frequency domain?
Those are operator compositions, the technique works for any $A$ not just convolution. If $Af=f\star g$, then $A^tA$ can also be written as a convolution, yes.
Mar
12
answered Should an undergrad accept that some things don't make sense, or study the foundation of mathematics to resolve this?
Mar
5
answered Math games for car journeys
Mar
5
reviewed Approve suggested edit on Does there exist a continuous function $f\colon \Bbb R\rightarrow \Bbb R$ such that $f(f(x))=-x$ for all $x\in\Bbb R$?
Mar
5
reviewed Approve suggested edit on Continuous function $f:\mathbb{R}\to\mathbb{R}$ such that $f(f(x)) = -x$?
Mar
2
comment In which case should a wavelet transform be applied instead of a Fourier transform?
Read also here: math.stackexchange.com/questions/279980/…
Mar
2
answered In which case should a wavelet transform be applied instead of a Fourier transform?
Feb
25
awarded  Informed
Feb
24
asked Approximating the Fourier transform with DFT/FFT
Feb
20
comment Lebesgue measurablity of Hardy Littlewood maximal function
@Nirav this is implicit - the supremum is over all balls containing $x$, though not necessarily centered at $x$.
Feb
11
comment Integral with a jump (Leibniz rule?)
It is the full Leibniz rule applied to each integral, but two of the chain rule terms drop out (the ones corresponding to the constant limits of integration $a$ and $b$).