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I was about to create a new entry “characteristic differential form” when I discrovered this old entry.
Have added more redirects to it and more cross-links with Chern-Weil homomorphism.
Can someone help me with (4) in the section “Preliminaries”?
I think one of the Ω2’s should be Ω2⋅. (Also, Ω2 is not a ring or algebra on its own.)
The powers of Ω in (4) look correct to me: The formula is including a 2-form into the ring if even-degree forms.
But the variable “t” is either missing in the last term or spurious in the second-but-last. I am deleting it now.
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