781 reputation
315
bio website
location
age
visits member for 4 years, 4 months
seen 3 hours ago

Sep
2
revised Motivation of the Gaussian Integral
added 3 characters in body
Sep
2
asked Motivation of the Gaussian Integral
Aug
24
awarded  Yearling
Jul
11
answered Proof that $\sum\limits_{k=1}^nk^2 = \frac{n(n+1)(2n+1)}{6}$?
Jul
8
answered Covectors and Vectors
Jun
19
comment Functions as integrals of basis functions
I know about this theory. However, it doesn't yield the classical Fourier transform though (where thinkings happen in $L^1(\mathbf R)$.
Jun
18
revised Functions as integrals of basis functions
added 574 characters in body
Jun
18
asked Functions as integrals of basis functions
May
27
comment Questions about boundary faces of simplices and triangulations
@wckronholm I understand what you meant to say now, that is that every point of a simplex is an interior point of one of its faces. Let me think about what I can do with that.
May
27
awarded  Commentator
May
27
comment Questions about boundary faces of simplices and triangulations
@wckronholm That cannot be true since two subsimplices may share a face.
May
27
comment Questions about boundary faces of simplices and triangulations
@Joseph A triangulation of an $n$-dimensional simplex $S$ is a finite collection of $n$-simplices, called the subsimplices of the triangulation, whose union equals S and such that the intersection of any two of them is a common face.
May
26
asked Questions about boundary faces of simplices and triangulations
May
16
comment Checking that a particular set is a $\sigma$-algebra
What is $\mathcal M$ supposed to be?
May
13
awarded  Teacher
May
13
answered Quantum mechanics for mathematicians
May
13
accepted On the probability that two positive integers are relatively prime
May
7
comment On the probability that two positive integers are relatively prime
Cool. I did not anticipate this would lead to talk about amenable groups. I just learned about them recently in connection with the Banach-Tarski paradox and ergodic measures.
May
7
comment On the probability that two positive integers are relatively prime
Are these "densities" the same as "Banach means" as in the first answer above? In any case, would it be correct to say that "the density that two random positive integers are coprime is $6/\pi^2$"?
May
6
asked On the probability that two positive integers are relatively prime