Eric Naslund

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Name Eric Naslund
Member for 2 years
Seen 21 hours ago
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Location Vancouver
Age
My interests lean towards Analytic Number Theory and Additive Combinatorics.

You can contact me at: naslund (at) princeton.edu

Apr
18
comment Estimates for the size of the product set [n].[n]
This is an exact duplicate of: mathoverflow.net/questions/108912/…
Mar
25
answered Recovering $\sum_{n \leq x} a(n)$ from $\sum_{n \leq x} a(n)e^{-n/x}$
Mar
19
comment Probability that two random integers are coprime
See the last part of this Math Stack Exchange answer: math.stackexchange.com/a/38142/6075
Mar
18
comment Is there an explicit expression for the imaginary part of some non-trivial zero of zeta,
At at a colloquium I once heard the comment, "Can we even prove that all the zeros of every primitive L-function are not all rational multiples of each other?"
Mar
12
awarded  Popular Question
Mar
12
revised Integer Points on the Elliptic Curve $y^2=x^3+17$.
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Mar
12
revised Mathematical Advice for Interested Highschool Students
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Mar
1
awarded  Popular Question
Mar
1
comment Euler constant transcendality.
The question of irrationality is still open. See: en.wikipedia.org/wiki/…
Mar
1
comment How to rewrite this totient summation in terms of Mertens?
@Will Jagy: I didn't see the question on Math Stack Exchange until after answering this.
Mar
1
comment How to rewrite this totient summation in terms of Mertens?
When $l=0$ you obtain the result at the displayed equation in my answer above.
Mar
1
accepted How to rewrite this totient summation in terms of Mertens?
Mar
1
answered How to rewrite this totient summation in terms of Mertens?
Feb
19
comment Prime race in 2 dimensions
@Stefan: I don't think you are normalizing correctly. Looking at the count of primes up to $3.206\cdot 10^{11}$, we expect the error term in the prime number race to be around $\sqrt{x}/\log x$, or in your case $$\sqrt{3.206*10^{11}}/\log(3.206*10^{11})\approx 21371.$$
Feb
3
accepted A curious limit involving prime numbers and composite numbers
Feb
1
comment Prime race in 2 dimensions
@Teo B: The movement in the negative and positive direction comes from the prime number race modulo $8$ between the residues $1$ and $5$. More often than not, there will be more primes congruent to $5$ modulo $8$ than $1$. (To be specific, we need to talk about the logarithmic density and assume GRH and LI) The first time that the primes congruent to $1$ modulo $8$ pulls ahead in the race is between $10^8$ and $10^9$.
Feb
1
comment Should I tell my coauthor?
This may be more appropriate on academia.stackexchange.com
Jan
20
comment Probability of all combinations of k numbers among n being coprime
How are the $x_1,\dots,x_n$ chosen? If they are all multiples of two, then the gcd condition never happens.
Jan
12
awarded  Yearling
Jan
3
comment A closed form of infinite products of complex zeros involving $\Im(\rho_n)$. Does a proof of this closed form imply RH?
@Andy Putman: I don't think the OP claimed to have proved RH. His question is whether a particular statement is equivalent to RH.
Dec
31
comment 3-7 primes in base 10
Can we even prove that there are infinitely many primes which in their decimal expansion do not contain the digit $9$?
Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
comment Using Quotient of Prime Numbers to Approximation Reals
@quid: Thank you for your comments. I found the [paper](arxiv.org/abs/math/0609615), it is also by Goldston, Graham, Pintz and Yıldırım.
Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
awarded  Enlightened
Dec
25
awarded  Nice Answer
Dec
25
accepted Using Quotient of Prime Numbers to Approximation Reals
Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
revised Using Quotient of Prime Numbers to Approximation Reals
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Dec
25
answered Using Quotient of Prime Numbers to Approximation Reals
Dec
18
comment maximum of the sum of polynomials
I am not sure I understand. On the interval $[0,1]$, take the polynomials $p_1(x)=x^2$ and $p_2(x)=(1-x)^2$. Each has maximum $1$, and exactly $1$ peak on this interval, but their sum has two peaks. For a more extreme example, take $p_1(x)=x$ and $p_2(x)=1-x$. Again, both have maximum $1$ and only $1$ peak on $[0,1]$, but their sum is then the constant function.
Dec
15
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
15
comment Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
Thanks for sharing this answer. It is much cleaner, and it made me realize I previously have an error in the calculation of the constant $C_0$. (Also, it certainly looks much nicer to write $S(n)=\frac{1}{\Gamma(-i)}n^{−i}\left(1+O\left(\frac{1}{n}\right)\right).$)
Dec
15
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
15
comment Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
@S. Carnahan: Thank you for the response. However, I have noticed that I made a mistake in the calculation of the constant $C_0$. It should be around $0.3016$, not $0.33815$, and I can't find my error at the moment. If I don't find it soon, I will just delete my answer.
Dec
15
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
awarded  Nice Answer
Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
comment Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
@S. Carnahan: I don't believe so.
Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
comment Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
@Noam D. Elkies: Thank you for pointing this out. I have updated my answer and added a proof.
Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
revised Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
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Dec
14
answered Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$
Dec
3
revised A curious limit involving prime numbers and composite numbers
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Dec
2
revised Integers represented by the polynomial $a^2+b^3+c^6$
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