Pith. sign in

REVIEW 1 cited by

Homological instability for moduli spaces of smooth 4-manifolds

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2211.03043 v2 pith:GP62RTZ2 submitted 2022-11-06 math.GT math.ATmath.DG

classification math.GTmath.ATmath.DG
keywords modulimanifoldssmoothspaceshomologicalprovetopologicalcategories
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We prove that homological stability fails for the moduli space of any simply-connected closed smooth 4-manifold in any degree of homology, unlike what happens in all dimensions $\neq 4$. We detect also the homological discrepancy between various moduli spaces, such as topological and smooth moduli spaces of 4-manifolds, and moduli spaces of 4-manifolds with positive scalar curvature metrics. To prove these results, we use the Seiberg-Witten equations to construct a new characteristic class of families of 4-manifolds, which is unstable and detects the difference between the smooth and topological categories in dimension 4.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Families of diffeomorphisms, embeddings, and positive scalar curvature metrics via Seiberg-Witten theory

    math.GT 2025-01 accept novelty 7.0 of 10

    A new gluing theorem for parameterized Seiberg-Witten invariants gives infinite rank Z^∞ summands in higher homotopy and homology of diffeomorphism groups of 4-manifolds that are topologically trivial.

Pith tools