| bio | website | |
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| location | ||
| age | ||
| visits | member for | 6 months |
| seen | 14 hours ago | |
| stats | profile views | 162 |
I am a PhD student my major is Fractal and ergodic theory.
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May 14 |
answered | How to integrate $\int_0^\infty e^{-ty^2} \sin t dt$ |
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May 14 |
comment |
The unique root on (1,2) I just give some ideas, firstly, there dose exist a root between 1 and 2 using intermediate value theorem, but I need to prove this root is unique |
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May 14 |
asked | The unique root on (1,2) |
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May 13 |
answered | Proving that $\frac{\sigma_{n-1}}{\omega_n} = n$ in $\mathbb{R}^n$ |
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May 13 |
asked | The definition of Pisot number |
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May 10 |
accepted | An estimation in mathematical analysis |
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May 10 |
accepted | Polynomial with bounded coefficients |
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May 10 |
accepted | Rotation on the unit circle K |
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May 10 |
accepted | Minimal value of a polynomial |
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May 10 |
accepted | Topological properties under the Lipschitz map |
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May 10 |
accepted | Some basic properties of Pisot number |
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May 10 |
revised |
Construct a sequence with good property edited body |
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May 10 |
comment |
Question on closures and closed sets Should we consider the metric? |
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May 10 |
asked | Construct a sequence with good property |
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May 7 |
answered | Beta Function : Proof |
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May 7 |
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How can I prove that a polynomial has no rational roots? math.stackexchange.com/questions/383186/…; may be helpful |
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May 7 |
answered | Convergence of sequence uneven/even |
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May 7 |
comment |
Convergence of sequence uneven/even $0\leq\frac{1.3.5\cdots(2n-1)}{2.4.\cdots(2n)}\leq \frac{1.3.5\cdots(2n-1)}{\sqrt{1.3}.\sqrt{3.5}.\cdots(\sqrt{(2n-1)(2n+1)})}=\frac{1}{\sqrt{2n+1}}$ |
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May 7 |
comment |
Lower bound of a polynomial I think that the optimal bound is when the number of positive $a_n$ and negative $a_n$ are the same, therefore, they can offset each other perfectly. |
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May 7 |
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Lower bound of a polynomial I have known that it is not right, but I only need to find the lower bound of the polynomial. |