Francesco Polizzi's user avatar
Francesco Polizzi's user avatar
Francesco Polizzi's user avatar
Francesco Polizzi
  • Member for 13 years, 8 months
  • Last seen this week
6 votes

How are coordinate charts constructed in noncommutative geometry?

14 votes

Connеcted components of irreducible algebraic varieties

1 vote

(Non-)Rationality of a certain quotient of the symmetric square of the Fermat sextic (quartic) curve

4 votes
Accepted

Varieties with disjoint prime divisors

2 votes

General construction of ramified covering of projective variety

4 votes

Teaching algebraic geometry to computer science people

6 votes
Accepted

How small need a perturbation be to not change the diffeomorphism type of a variety?

2 votes

Contractible real analytic varieties

2 votes
Accepted

Image of $H^0(C,\omega_C-x)$ in $G(g-1,H^0(C,\omega_C))$

7 votes
Accepted

Cycles contained in ample enough hypersurfaces

2 votes

Books for learning branched coverings

5 votes
Accepted

Fundamental group of a smoothing of a complex surface

2 votes

What's the limit of a sequence of harmonic maps between manifolds?

11 votes
Accepted

Does the Lie algebra of vector fields $\mathfrak{X}(M)$ determine the diffeomorphism class of a manifold $M$?

3 votes

Topology of a smoothing of an isolated singularity

3 votes
Accepted

How do we define the type of a singularity on a cubic surface?

13 votes
Accepted

Non-Kähler pseudo-Kähler manifolds

3 votes

Projective embedding of a compact complex surface

2 votes
Accepted

Blow-up of a pencil of cubic curves (from Miranda's basic theory of elliptic surfaces)

2 votes

Examples of smooth compact Kähler manifolds with semipositive canonical class

1 vote

Surjectivity of $H^2(X,\mathbb C)\to H^2(X,\mathcal O)$

6 votes

Can quasi affine varieties contain projective curves

4 votes

Fixed-point free holomorphic involutions

5 votes

Varieties with few trisecant lines

5 votes
Accepted

Singularities of surfaces fibered in rational curves

6 votes

Explicit triples of isomorphic Riemann surfaces

3 votes

Is every virtually free group residually finite?

4 votes

Dimension of the dual variety

1 vote

Direct image of a sheaf with nowhere vanishing sections

6 votes
Accepted

How far is ample from globally-generated

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