MathOverflow

I live in a very poor country. I have done masters in mathematics.
I am self studying Geometric Group theory from the textbook Office Hours with a Geometric Group Theorist and also know text book on the same subject by Clara Loh. Geometric Group theory is a vast and beautiful subject....

In D. Halpern-Leistner’s paper The Derived Category of a GIT Quotient and other places of the literature, it is claimed that from the main theorem of the paper one can reconstruct Beilinson’s exceptional collection for $D^b(\mathbb{P}^n)$. However, I...

Recently, I was learning about Gromov-Witten (GW) theory in enumerative geometry. I saw there is an interesting conjecture saying that,
All Gromov-Witten cycles corresponding to a smooth projective variety $X$ lie in the tautological ring.
There is a big class of $X$ for which this is true. My question is the following:...

I am asking if this variant of the weak Goldbach Conjecture is already known.
Let $N$ be an odd number. Does there exist prime numbers $p_1$, $p_2$ and $p_3$ such that $p_1+p_2-p_3=N$? Ideally, can we find $p_1$, $p_2$ and $p_3$ so that they are small enough? For example, can we prove that for large enough $N$, we can find such...