33 citations · 133 across the 8 of their papers we have counts for
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3 papers · 1 filter
math.GT2000
Cycles, submanifolds, and structures on normal bundles
C. Bohr, B. Hanke, D. Kotschick
We give explicit examples of degree 3 cohomology classes not Poincare dual to submanifolds, and discuss the realisability of homology classes by submanifolds with Spin-C normal bun…
math.DG2000
On products of harmonic forms
D. Kotschick
We prove that manifolds admitting a Riemannian metric for which products of harmonic forms are harmonic satisfy strong topological restrictions, some of which are akin to propertie…
math.SG2000
Some examples of aspherical symplectic four-manifolds
H. Endo, D. Kotschick
The paper was withdrawn due to a gap in the proof of Lemma 3.