1
vote
1answer
53 views
Non-(stable)-triviality of the tautological bundles
This is a question I asked at Math.SE but got no answers: http://math.stackexchange.com/q/396217/7110/
The tautological vector bundle $\gamma_k(\mathbb{K}^N)$ over the Grassmann m …
2
votes
2answers
100 views
Are all Equivariant Bundles of a Total Flag Manifold Constructable from Line Bundles?
As we all know, for any homogeneous space $G/H$ we have that the equivariant vector bundles over $G/H$ are characterized by the representations of $H$. Thus, for the the complex pr …
0
votes
1answer
191 views
Cech Cohomology of Sections of Holomorphic Bundle over Contractible Space
Is there anything that can be said in general about the Cech cohomology of the sheaf $\mathcal{F}$ of sections of a holomorphic bundle over a contractible space $X$?
I know that …
7
votes
0answers
284 views
Big tangent bundle
Let $X$ be a nonsingular complex algebraic variety whose tangent bundle is $T_X$. I use Lazarsfeld's book for the definition of a big vector bundle. A line bundle $L$ is big if it …
15
votes
1answer
363 views
Existence of non-split vector bundles on smooth projective varieties
Question. Is it known/easy to see that every smooth projective variety $X$ (over an algebraically closed field), except for the point and $\mathbb{P}^1$, has a vector bundle whi …
1
vote
1answer
192 views
non-trivial topological line bundles over cartesian product of manifolds not coming from a pullback
Let $X$ and $Y$ be connected smooth manifolds. Let $L$ be a topological real line
bundle over $X\times Y$. Then we know that the isomorphism class of such a line bundle is determin …
11
votes
3answers
591 views
what is a spinor structure?
There are of course lots of definitions and references for this, but in the same way that, on a manifold $M$,
a Riemannian metric is a section of positive definite symmetric bili …
0
votes
0answers
52 views
sections of vector bundles transversal to a divisor
Let $X$ a smooth projective curve over $\mathbb{C}$, $S$ a finite subscheme of $X$.
$E$ a vector bundle over $X$ with a divisor $D$.
We look at the sections $A:=H^{0}(X,E)$ with …
9
votes
5answers
571 views
From Topological to Smooth and Holomorphic Vector Bundles
In the last weeks I have been think of the transition from topological vector bundles to smooth and holomorphic vector bundles. This has resulted in a few questions (with a common …
4
votes
1answer
375 views
Coherent Sheaves and Holomorphic Vector Bundles
For a complex manifold $M$, I'm trying to understand (from a differential geometry point of view) what its category of coherent sheaves is. If I understand correctly, then the shea …
5
votes
1answer
264 views
Alternate definition of vector bundle?
Recall the usual definition of a $k$-dimensional vector bundle (everything is assumed to be continuous/smooth/etc depending on the category):
A $k$-dimensional vector bundle is …
4
votes
1answer
270 views
Classifying Globally Generated Holomorphic Line Bundles over a Flag Manifold
I was recently looking back at an old question of mine, where I asked about the classification of the line bundles over a general complex flag manifold. Pavel Etingof gave the foll …
4
votes
1answer
159 views
When are the Smooth Sections of a Bundle Generated as a Module (over Smooth Functions) by the Holomorohic Sections
For a holomorphic vector bundle $E$ over a complex manifold $M$, we denote its space of smooth sections by $\Gamma^{\infty}(E)$, and its space of holomorphic sections by $\Gamma^{h …
1
vote
3answers
242 views
Linearly trivial bundles on hypersufaces in $\mathbb CP^n$
Recall a definition. Let $V\subset \mathbb CP^n$ be a projective variety
and $E$ be a holomorphic vector bundle on it. We call $E$ linearly trivial if the restriction of $E$ to any …
0
votes
0answers
137 views
sections of vector bundles
Let $X$ a smooth projective connected curve over $\mathbb{C}$.
Let $E$ a vector bundle and $E'$ a subbundle of $E$.
Let $(x_{1},\dots,x_{n})$ $n$ closed points on the curve $X$ wit …

