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Intersection forms of almost-flat 4-manifolds. (English) Zbl 1398.57040

Summary: We calculate the intersection forms of all 4-dimensional almost-flat manifolds.

MSC:

57R19 Algebraic topology on manifolds and differential topology
57M05 Fundamental group, presentations, free differential calculus
20H15 Other geometric groups, including crystallographic groups
22E25 Nilpotent and solvable Lie groups
53C25 Special Riemannian manifolds (Einstein, Sasakian, etc.)

Software:

GAP
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Full Text: DOI arXiv

References:

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