Kronheimer–Mrowka basic class

In mathematics, the Kronheimer–Mrowka basic classes are elements of the second cohomology $H^{2}(X;\mathbb {Z} )$ of a simply connected, smooth 4-manifold $X$ of simple type that determine its Donaldson polynomials. They were introduced by Peter B. Kronheimer and Tomasz S. Mrowka (1994, 1995).

References

Kronheimer, Peter B.; Mrowka, Tomasz S. (1994), "Recurrence relations and asymptotics for four-manifold invariants", Bulletin of the American Mathematical Society, New Series, 30 (2): 215–221, arXiv:math/9404232, doi:10.1090/S0273-0979-1994-00492-6, ISSN 0002-9904, MR 1246469
Kronheimer, Peter B.; Mrowka, Tomasz S. (1995), "Embedded surfaces and the structure of Donaldson's polynomial invariants", Journal of Differential Geometry, 41 (3): 573–734, doi:10.4310/jdg/1214456482, ISSN 0022-040X, MR 1338483

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