= Peter Ozsváth
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<Peter Ozsváth> and <Zoltán Szabó> developed <Heegaard Floer homology>, constructing invariants of three-manifolds from holomorphic-disk counts associated with <Heegaard splittings>. Their Berkeley lecture record explicitly identifies the joint discovery.https://math.berkeley.edu/about/upcoming-events/lecture-series/chern-lectures/2010-chern-lectures[Institutional lecture abstract and joint attribution]{ref}
Their four-manifold work uses <pseudoholomorphic curves> on triangular domains to define maps associated with <cobordisms> and assemble a smooth four-manifold invariant. The construction connects surface diagrams with information about smooth structures in four dimensions.<Holomorphic triangles and invariants for smooth four-manifolds by Peter Ozsváth and Zoltán Szabó>[Abstract, Theorem 3.7 and section 10.1]{ref}
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