875 reputation
322
bio website math.utep.edu/faculty/…
location El Paso, TX
age 32
visits member for 2 years, 3 months
seen Mar 21 at 0:25

Computational Science PhD student
University of Texas El Paso
Climate & Energy Science Student Organization President
National Energy Technology Laboratory Intern
NSF LSAMP Fellow


Sep
14
comment Understanding tensor divergence notation in an integral
Oh... ok... So, at each point, a matrix is assigned. Could I also consider it as if $\sigma$ were a matrix whose elements are functions of variables in $R^2$?
Sep
14
comment Understanding tensor divergence notation in an integral
In the definition of $\sigma$, it maps a vector to a matrix. But in your notation of the right hand side, wouldn't $\sigma n$ be a vector? Isn't this a contradiction?
Sep
14
comment Understanding tensor divergence notation in an integral
So, you mean "the usual divergence theorem" for each column vector of $\sigma$?
Sep
14
accepted Accumulation points of sequences as limits of subsequences?
Sep
14
asked Understanding tensor divergence notation in an integral
Sep
14
awarded  Citizen Patrol
Sep
14
comment Numerical solution of fractional integro-diffrential equ. using collocation method?
This question may be best posted on scicomp.stackexchange.com. It is more geared towards numerical methods for scientific computing.
Sep
14
comment Understanding Line integral notation
@MichaelBoratko: Yes, in fact, I'm evaluating the RHS integral in this notation. I'm parameterizing a curve around a quadrilateral, one segment at a time. Would $dS_{1}$ (in my case) be equivalent to ||C'(t)||dt?
Sep
14
comment Understanding Line integral notation
Its in Understanding and Implementing the Finite Element Method by M.S. Gockenbach.
Sep
14
asked Understanding Line integral notation
Sep
9
comment Proving the Kantorovich inequality
Could you post your answer? There may be others interested in the same question... i.e. me! :)
Sep
7
comment Accumulation points of sequences as limits of subsequences?
Ah, so it does work both ways! That's awesome! :)
Sep
7
comment Accumulation points of sequences as limits of subsequences?
As I'm working in $R^n$ space, I think that should work! :)
Sep
7
asked Accumulation points of sequences as limits of subsequences?
Sep
7
comment Evaluating $\iiint x\,dx\,dy\,dz$ limited by paraboloid of equation $x=4 y^2+4z^2$ & for plane $x=4$
Sometimes, books can be mistaken as well.
Sep
7
comment Evaluating $\iiint x\,dx\,dy\,dz$ limited by paraboloid of equation $x=4 y^2+4z^2$ & for plane $x=4$
You don't need to substitute anything for x... the change in variables result in a differential of the form: $r dxdrd\theta$.
Sep
7
answered Evaluating $\iiint x\,dx\,dy\,dz$ limited by paraboloid of equation $x=4 y^2+4z^2$ & for plane $x=4$
Aug
31
comment Verifying an error estimate on a multidimensional function using its jacobian
Thanks, copper.hat! :)
Aug
31
accepted Verifying an error estimate on a multidimensional function using its jacobian
Aug
31
comment Verifying an error estimate on a multidimensional function using its jacobian
You're answer makes a lot sense now! Just one little question: I'm not quite sure I understand how we can make the assumption that $\epsilon \le ||J(x^*)||$ "without loss of generality". Could you elaborate on that? What allows us to make such a claim?