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Michael Albanese
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Can a class be represented by both a $(p,q)$ form-form and a $(p',q')$ form-form?

Suppose $X$ is a complex manifold.

If $X$ is Kähler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms-forms.

If $X$ is not Kähler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$-form and a $(p',q')$-form with $(p, q) \neq (p',q')$?

Can a class be represented by both a $(p,q)$ form and a $(p',q')$ form?

Suppose $X$ is a complex manifold.

If $X$ is Kähler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms.

If $X$ is not Kähler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$-form and a $(p',q')$-form with $(p, q) \neq (p',q')$?

Can a class be represented by both a $(p,q)$-form and a $(p',q')$-form?

Suppose $X$ is a complex manifold.

If $X$ is Kähler, the cohomology groups decompose into subgroups represented by $(p,q)$-forms.

If $X$ is not Kähler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$-form and a $(p',q')$-form with $(p, q) \neq (p',q')$?

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Michael Albanese
  • 19.3k
  • 9
  • 87
  • 160

Suppose $X$ is a complex manifold.

If $X$ is KahlerKähler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms.

If $X$ is not KahlerKähler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$ form-form and a $(p',q')$ ($(p,q)\neq (p',q')$)-form with $(p, q) \neq (p',q')$?

Suppose $X$ is a complex manifold.

If $X$ is Kahler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms.

If $X$ is not Kahler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$ form and a $(p',q')$ ($(p,q)\neq (p',q')$)form?

Suppose $X$ is a complex manifold.

If $X$ is Kähler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms.

If $X$ is not Kähler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$-form and a $(p',q')$-form with $(p, q) \neq (p',q')$?

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user39380
user39380

Can a class be represented by both a $(p,q)$ form and a $(p',q')$ form?

Suppose $X$ is a complex manifold.

If $X$ is Kahler, the cohomology groups decompose into subgroups represented by $(p,q)$ forms.

If $X$ is not Kahler, I think the decomposition may not hold?

Is there an example where we have a nonzero class be represented by both a $(p,q)$ form and a $(p',q')$ ($(p,q)\neq (p',q')$)form?