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seen Dec 16 at 12:29

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Sep
25
revised Solution to a system of linear equations in GF(2)
added 104 characters in body
Sep
25
revised Solution to a system of linear equations in GF(2)
added 11 characters in body
Sep
25
revised Getting the inverse of a lower/upper triangular matrix
added 4 characters in body
Sep
25
accepted How to calculate dual frames under constraints?
Sep
25
asked Solution to a system of linear equations in GF(2)
Aug
28
comment infinite series of the form $\sum\limits_{k=1}^{\infty}\frac{1}{a^{k}+1}$
Not a proof but I've tried "Plot[NSum[1/(a^k + 1), {k, 1, [Infinity]}] - (-Log[a/(a - 1)] + QPolyGamma[0, 1 - (I [Pi])/Log[a], 1/a])/Log[a], {a, 2, 10}]" in Mathematica and it turns out to be a zero function.
Aug
19
awarded  Tumbleweed
Jul
20
comment Can anyone recommend some books on PDE in $L^p$ space for me?
@Jack: Oops... 18-155
Jul
13
answered How am I supposed to substitute these integral bounds?
Jun
26
revised How to use Galerkin method to prove uniqueness of solutions of hyperbolic equations?
uniqueness -> existence
Jun
26
comment How to use Galerkin method to prove uniqueness of solutions of hyperbolic equations?
Oh @Willie Wong, I am so sorry, it should be existence. Hope that not wasted you too much time.
Jun
26
asked Moser interation for nonlinear elliptic equation
Jun
26
comment How to use Galerkin method to prove uniqueness of solutions of hyperbolic equations?
Am I misunderstanding something? I thought that this method (to prove existence of weak solutions by eigenfunction expansion) is called Galerkin method.
Jun
25
comment How to prove Campanato space is a Banach space
Thank you, @Martin Sleziak. I did google before, using "Campanato space Banach" as keywords, but didn't get much information.
Jun
25
revised Getting the inverse of a lower/upper triangular matrix
added 11 characters in body
Jun
25
revised Question in solving $\phi(t)=\phi(2t)+\phi(2t-1)$, $\phi\ne0$
edited tags
Jun
25
answered Getting the inverse of a lower/upper triangular matrix
Jun
25
asked How to prove Campanato space is a Banach space
Jun
24
comment How to use Galerkin method to prove uniqueness of solutions of hyperbolic equations?
Not exactly...I am searching a proof similar to the pages posted as the link above, but working on hyperbolic equations.
Jun
24
accepted Question in solving $\phi(t)=\phi(2t)+\phi(2t-1)$, $\phi\ne0$