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4 votes
0 answers
130 views

Stability of Ricci-flat Fujiki class $\mathcal C$ by small deformations

As we know, a compact Kähler manifold remains Kähler after any infinitesimal deformations. Since a compact complex manifold in Fujiki class $\mathcal C$ is bimeromorphic to a Kähler manifold, it was ...
Tom's user avatar
  • 471
4 votes
0 answers
236 views

Deform a non-Kähler manifold to a Kähler one

Let $X$ be a compact complex non-Kähler manifold, then what conditions do we need to make it has a Kähler deformation? that is to say it can be deformed to a Kähler manifold. Obviously not all the ...
Tom's user avatar
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1 vote
0 answers
161 views

Manifolds with $[,]:H^1(X,T_X)\times H^1(X,T_X)\rightarrow 0$

Let $X$ be a compact complex manifold, for arbitrary $\phi_1,\phi_2\in H^1(X,T_X)$, if the Lie bracket $[,]:H^1(X,T_X)\times H^1(X,T_X)\rightarrow H^2(X,T_X)$ always maps $\phi_1,\phi_2$ to zero, i.e.$...
Tom's user avatar
  • 471
6 votes
1 answer
877 views

The period map and the Kodaira--Spencer map

Let $f : X \to B$ be a non-isotrivial holomorphic submersion with connected fibres between compact Kähler manifolds of positive relative dimension. Suppose the fibres of $f$ are Calabi--Yau $(c_{1,\...
GradStudent's user avatar
4 votes
0 answers
207 views

Rigid non-algebraic manifolds

The famous Kodaira problem asks: whether a compact Kähler manifold can always be deformed to a projective manifold? In order to provide a counterexample, one way is trying to construct a rigid compact ...
Tom's user avatar
  • 471
14 votes
0 answers
709 views

Is Hironaka's example the only known deformation of Kähler manifolds with non-Kähler central fibre?

A well-known example in the deformation theory of compact complex manifolds is the one given by Hironaka in his 1962 paper An Example of a Non-Kählerian Complex-Analytic Deformation of Kählerian ...
Michael Albanese's user avatar