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Mathematics
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user72012
  • Member for 11 years, 5 months
  • Last seen more than 3 years ago
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13
How to show that the space of polynomials is not complete
Jul 2, 2015
answer
6
Limit of equations.
Jul 3, 2015
question
3
Show that $\frac{\int_\Omega e^{v^2}v^2}{\int_\Omega v^2} \geq \frac{\int_\Omega e^{u^2}u^2}{\int_\Omega u^2}$
Sep 19, 2013
question
3
If the gradient of $f$ at $x$ has the same direction with $x$ for all $x$, is $f$ radial?
Aug 17, 2015
answer
2
Sobolev inequality in $W_0^{1,p}$
Apr 11, 2013
answer
2
Calculus: simpler way of showing that derivative is negative?
Jun 30, 2015
answer
1
Prove that $\prod_1^{\infty}(1-a_i) > 0$ iff $\sum_1^{\infty}{a_i} < \infty$
Jun 30, 2015
answer
1
C1 function with strictly positive derivative at its root(s); can I prove that $x<y,\;f(x) > 0 \Rightarrow f(y) > 0$?
Jul 1, 2015
answer
1
Is this function monotonically decreasing?
Jul 8, 2015
answer
0
Prove that the following function is $C^{\infty}$
Jun 27, 2015
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Equivalent Norms on Sobolev Spaces