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Denis T
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There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$$\Bbb C$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and itwhere $A$ is a scalar matrix with non-real value $a$. It maps to a product of complex projective spaces by further quotiening, giving it structure of principal bundle with fibersfiber being elliptic curvescurve $\Bbb C / (\Bbb Z\cdot 1, \Bbb Z \cdot a)$. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have algebraic dimension zero as "most" generic complex manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have algebraic dimension zero as "most" generic complex manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb C$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, where $A$ is a scalar matrix with non-real value $a$. It maps to a product of complex projective spaces by further quotiening, giving it structure of principal bundle with fiber being elliptic curve $\Bbb C / (\Bbb Z\cdot 1, \Bbb Z \cdot a)$. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have algebraic dimension zero as "most" generic complex manifolds.

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Denis T
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There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have spectralalgebraic dimension zero as "most" generic cookedcomplex manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have spectral dimension zero as "most" generic cooked manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have algebraic dimension zero as "most" generic complex manifolds.

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Denis T
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There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $\Bbb C^n \times \Bbb C^m$$(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have spectral dimension zero as "most" generic cooked manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $\Bbb C^n \times \Bbb C^m$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

There are complex manifolds with reduced cohomology vanishing in arbitrarily high degrees. Namely, product of two odd-dimensional spheres admits complex structure coming from representing it as a quotient of $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0})$ by diagonal action of $\Bbb R$. They are known as Calabi-Eckmann manifolds.

Easiest example is $(\Bbb C^n \setminus {0})\times (\Bbb C^m \setminus {0}) / (e^At, e^At)$, and it maps to a product of complex projective spaces by further quotiening, with fibers being elliptic curves. This map is the algebraic reduction of the manifold.

This easy example admits deformations of several types; for example, you can take different contracting flow instead of linear diagonal one. Most deformations do not have complex submanifolds at all, and have spectral dimension zero as "most" generic cooked manifolds.

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Denis T
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