Linked Questions

64 votes
11 answers
23k views

What are the open big problems in algebraic geometry and vector bundles? More specifically, I would like to know what are interesting problems related to moduli spaces of vector bundles over ...
35 votes
8 answers
4k views

For the time being, the OEIS website contains almost $300000$ sequences. Each of these sequences is the mark of a specific mathematical concept. Sometimes two (or more) distinct concepts have the ...
29 votes
4 answers
5k views

The short version of my question goes: What is known to follow from the existence of Siegel zeros? A longer version to give an idea of what I have in mind: The "exceptional zeros" of course first ...
Kálmán Kőszegi's user avatar
30 votes
3 answers
3k views

Main Question. Can there be an embedding $j:V\to L$ of the set-theoretic universe $V$ to the constructible universe $L$, if $V\neq L$? By embedding here, I mean merely a proper class isomorphism from $...
Joel David Hamkins's user avatar
43 votes
1 answer
4k views

Is there an example of a complex bundle on $\mathbb CP^n$ or on a Fano variety (defined over complex numbers), that does not admit a holomorphic structure? We require that the Chern classes of the ...
Dmitri Panov's user avatar
  • 29.4k
28 votes
2 answers
3k views

I have seen lots of descriptions of this map in the literature but never seen it nicely drawn anywhere. I could try to do it myself but I really lack expertise, hence am afraid to miss something or ...
მამუკა ჯიბლაძე's user avatar
23 votes
1 answer
3k views

The conjecture that $\pi(x+y) \leq \pi(x) + \pi(y)$, with $\pi$ the counting function for prime numbers, is customarily attributed to Hardy and Littlewood in their 1923 paper, third in the Partitio ...
T..'s user avatar
  • 3,791
3 votes
1 answer
1k views

What is the source of the $k$-tuple conjecture, that every integer tuple $(k_1,\ldots,k_n)$ either contains all members of a congruence class mod a prime or has infinitely many primes amongst $(k_1+c,\...
Charles's user avatar
  • 9,419
1 vote
1 answer
764 views

Consider the following function $f: \omega\to \{0,1\}$: Set $f(n) = 1$ if for all $k\in \omega$ there are prime numbers $p,q > k$ such that $n = p-q$, and set $f(n) = 0$ otherwise. (Trivially, if $...
Dominic van der Zypen's user avatar
1 vote
0 answers
273 views

Does anyone know who formulated this conjecture related to Riemann's zeta function? Conjecture. The set $$\{ x : \exists y \space \space \zeta (x+iy) = 0\}$$ is dense in $[0, 1]$. In ...
Cristian Dumitrescu's user avatar