Mathematics
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Mohan
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All Questions Answers
Score Newest
answer
18
Example of an ample line bundle $L$ with $L^{\otimes m}$ very ample and $L^{\otimes (m+1)}$ not very ample
Oct 30, 2015
answer
16
Do automorphisms of a finitely generated free module restrict to automorphisms on every invariant submodule?
Sep 20, 2017
answer
13
Is there a non-homogeneous ideal whose radical is homogeneous?
May 17, 2017
answer
12
"path-connectedness" of an algebraic variety
Oct 30, 2015
answer
9
Hartshorne exercise 1.1 (c)
Sep 1, 2017
answer
8
If $I$ is not finitely generated and every ideal properly containing $I$ is finitely generated, then $I$ is prime?
Aug 20, 2017
answer
8
Normal bundle of a section of a projective bundle
Jun 11, 2017
answer
8
how to prove that an algebraic variety is normal but not smooth?
Feb 5, 2016
answer
8
Slope-stability: subsheaves vs. subbundles
Sep 6, 2020
answer
7
Can blow-up of a surface be a product of two curves?
Aug 1, 2021
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19
Why there is a Quot-scheme, not a Sub-scheme?
17
Examples of simultaneous independent breakthroughs
15
In $\mathbb{C}[x,y]$: If $\langle u,v \rangle$ is a maximal ideal, then $\langle u-\lambda,v-\mu \rangle$ is a maximal ideal?
12
An analogue of the Bass-Quillen conjecture with power or Laurent series
11
Choosing the algebraic independent elements in Noether's normalization lemma

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