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seen Apr 5 at 20:07
Attempting rather ill-advised independent research soon.

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revised What is torsion in differential geometry intuitively?
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comment Action of the mapping class group on middle-dimensional cohomology
Similarly whoops. My comment is missing the condition of simple connectedness.
Aug
11
comment Action of the mapping class group on middle-dimensional cohomology
Whoops! You are indeed correct Greg! Schoolboy error.... :(
Aug
11
comment Action of the mapping class group on middle-dimensional cohomology
In dimension 4 one requires stabilization M-> M#S^2XS^2 to guarantee the existence of a diffeomorphism realising a given automorphism, for a homeomorphism, however, stabilization is unnnecessary. These results are respectively due to Wall and Freedman. As to whether this is true in higher dimensions, I'd put money on you not needing stabilization for a diffeomorphism- this would be analogous to the situation with h-cobordisms.
Aug
7
comment Continuous + holomorphic on a dense open => holomorphic?
@Viktor- I know, I know... In all fairness though I did acknowledge my uncertainty...