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9m
reviewed Close Ky Fan norms and nuclear norm
23h
reviewed Leave Closed New algorithm discovered to find prime numbers
Jan
22
reviewed Close Notation in groups/rings/fields
Jan
20
comment Mean value of Maass forms
@paulgarrett: Sure, that works too! (I wrote the first thing that came to mind.)
Jan
20
revised Mean value of Maass forms
added 100 characters in body
Jan
20
comment Mean value of Maass forms
@paul garrett: Once you approximate the characteristic function by $f$, just use Cauchy's inequality to bound $\langle \phi_j, f-\chi_A \rangle$ by $\le \Vert f-\chi_A\Vert$. (I edited that in to the answer)
Jan
20
revised Mean value of Maass forms
edited tags
Jan
20
answered Mean value of Maass forms
Jan
19
comment Thin sequences with good counting properties
@juan When the $a_n$ are distinct, then from the conditions it follows that very few of the $a_n$ can be multiples of a prime $p$ with $p\le x^{1/10}$ say. But then the number of integers up to $x$ composed of primes larger than $x^{1/10}$ is $O(x/\log x)$.
Jan
19
comment Thin sequences with good counting properties
If the $a_n$ can have repeats, then you should just be able to repeat primes an appropriate number of times. If the $a_n$ are distinct, then there is no such sequence. Perhaps you could clarify the question.
Jan
16
awarded  Good Answer
Jan
16
reviewed Leave Closed What is the value of $\sum\limits_{p≤x}\frac{1}{p^2}$?
Jan
16
reviewed No Action Needed About the first decimal of $\sqrt {n!}$
Jan
16
reviewed No Action Needed Prime Number Theorem on APs under various conjectures
Jan
16
reviewed Close Isolating x? Stupid question sorry
Jan
16
reviewed No Action Needed Immersability and applications of a particular Riemannian metric
Jan
14
reviewed Leave Closed TM and abstract algebra
Jan
14
awarded  Nice Answer
Jan
14
answered Why does this sequence converges to $\pi$?
Jan
14
reviewed Leave Closed How many of Ramanujan's discoveries have had a practical application?