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bio website matematicamente.it/forum/…
location Italy
age 32
visits member for 3 years, 9 months
seen Dec 3 at 12:32

I used to be a good Math student; now I'm a PhD student in Mathematics...


Dec
3
comment Definite integral reciprocal of polynomial plus trig function
$x^{1/4}$ is definitively not a polynomial... And, however, the integrand seems not to be elementary integrable. Neverthless, the definite integral exists (because the integrand is everywhere continuous in $[0,\pi/2]$), it is a positive real number (for the integrand is positive in $[0,\pi/2]$) and it approximately equals $1$. ;-)
Dec
3
revised Useful mathematical fora
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Oct
11
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Sep
30
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28
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16
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Jul
2
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Apr
9
answered A basic question on bound of a function
Apr
9
comment A basic question on bound of a function
Oh, now I see...
Apr
9
comment A basic question on bound of a function
What about $a=0$? ;-)
Apr
5
awarded  Nice Answer
Mar
22
awarded  Yearling
Sep
22
answered $\sum_{j=3n}^{2n}a_{j}=\sum_{j=2n}^{3n}a_{j}$: true or false?
Aug
17
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Apr
9
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Apr
2
asked Increasing rearrangement and Hardy-Littlewood inequality
Mar
30
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Mar
25
revised Sobolev inequality in $W_0^{1,p}$
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Mar
25
asked Sobolev inequality in $W_0^{1,p}$
Mar
22
awarded  Yearling