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Mohan's user avatar
Mohan's user avatar
Mohan
  • Member for 13 years, 9 months
  • Last seen this week
21 votes
Accepted

A ring such that all projectives are stably free but not all projectives are free?

21 votes
Accepted

Why there is a Quot-scheme, not a Sub-scheme?

18 votes

Examples of simultaneous independent breakthroughs

15 votes
Accepted

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?

13 votes
Accepted

An analogue of the Bass-Quillen conjecture with power or Laurent series

13 votes

Are units of rings of functions on algebraic varieties finitely generated (mod. constants)?

11 votes

Choosing the algebraic independent elements in Noether's normalization lemma

11 votes
Accepted

Hilbert polynomial of the normalization

11 votes
Accepted

Holomorphic vector bundles over $\mathbb{C}^{n}\setminus 0$

10 votes

Normalization of complete intersection

10 votes
Accepted

Are projective modules over a certain localised Laurent polynomial ring free?

10 votes
Accepted

Endomorphisms of Artinian modules

8 votes
Accepted

Self-map of short exact sequences

8 votes

When is a smooth projective variety a fibration

7 votes

Finite, Étale Morphism Of Varieties

7 votes

Localization of a ring and the Hom functor

7 votes
Accepted

Examples of noetherian local rings $R$ such that $K'_0(R)$ is not isomorphic to $\mathbb Z$

7 votes

Existence of isomorphism mod every power of the maximal ideal

7 votes

Role of stably free modules in algebraic geometry

6 votes

Height of associated primes in regular rings

6 votes
Accepted

Reduced scheme structure on locally complete intersection

6 votes
Accepted

Proper morphisms with geometrically reduced and connected fibers

6 votes

Grothendieck group and faithfully flat morpshim

6 votes

Birational maps and Picard groups

6 votes

zero locus of a sheaf homomorphism

6 votes
Accepted

Divisor on variety determined by its restriction to curves

5 votes
Accepted

Non-isomorphic line bundles detected by sub-curves?

5 votes
Accepted

Does the degree of a finite dominant morphism bound the induced degree on subschemes?

5 votes
Accepted

Torsion free sheaves in flat families

5 votes
Accepted

Deformations of holomorphic/algebraic vector bundles over $\mathbb{P}^3$

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