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2 votes
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Chern classes and rational equivalence

Let $X$ be a complex variety and let $l_1$ and $l_2$ be line bundles on $X$. Let $f_1$ and $f_2$ be sections of $l_1$ and $l_2$ respectively, and let $Z_1$ and $Z_2$ be their zero-sets. I would like ...
Ron Z.'s user avatar
  • 89
2 votes
0 answers
129 views

principal divisor on complex surfaces

Let $X$ be a non compact complex surface non projective and non algebraic, and let $S$ be compact Riemann surface embedded in $X$ ( i mean that $S$ is a compact complex sub variety of $X$ of ...
singularity's user avatar
2 votes
0 answers
167 views

Ricci flat metric on pair (X,D)

Let $(X,\omega)$ be a Calabi-Yau variety and $D$ be a simple normal crossing divisor on $X$ with conic singularities with cone angle $2\pi\theta$, $0<\theta<1$ such that $K_X+D>0$, then is ...
Alon's user avatar
  • 75
1 vote
0 answers
47 views

Positivity of self-intersection of dicisor associated to meromorphic function

In the book "Holomorphic Vector Bundles over Compact Complex Surfaces" by Vasile Brînzănescu, in the proof of theorem 2.13 there is the following claim Let $X$ be a compact non-algebraic ...
JerryCastilla's user avatar
1 vote
0 answers
184 views

Divisor cohomology through spectral sequences

I don't know if it belongs here but anyway, I need to compute arithmetic genus of divisors pulled back from a Fano base space to a bundle (which may or mayn't be trivial) defined through the ...
user333644's user avatar
1 vote
0 answers
190 views

How to define a principal divisor on general complex spaces?

[I am not a native English speaker, so my sentences may sound strange. ] I'm studying about complex analytic spaces. For meromorphic functions, I don't know how to define their principal divisors ...
map's user avatar
  • 11
1 vote
0 answers
168 views

Rational classes of $(-2)$-curves in a minimal surface of general type

Let $X$ be a minimal surface of general type over $\mathbb{C}$. One can show that if for any set of $(-2)$-curves $C_1,\cdots,C_l$ on $X$, there exists $k$, $1\le k\le l$ such that $$\sum_{i=1}^k\...
astana's user avatar
  • 41
1 vote
0 answers
217 views

Family $(X_y,D_y)$ with trivial canonical bundles

Let $i:D\hookrightarrow X$ and $f : X \to Y$ be holomorphic mappings of complex manifolds such that $i$ is a closed embedding and $f$ as well as$ f \circ i$ are proper and smooth and $D$ is a divisor. ...
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