Nobuo Iida

activity

20192026

most citedAn adjunction inequality for the Bauer-Furuta type invariants, with applications to sliceness and 4-manifold topology

4 citations · 8 across the 12 of their papers we have counts for

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math.SG2026

On Auroux's Luttinger-surgery uniqueness question

Nobuo Iida

We construct simply connected integral symplectic four-manifolds forming an exotic pair, with equal values of $c_{1}^{2}$ , $c_{2}$ , $c_{1} \cdot [ω]$ , and $[ω]^{2}$ , but with symplec…

math.GT2026

The three-dimensional symplectization question for small Seifert L-spaces and further classes

Nobuo Iida

We solve the three-dimensional symplectization question for several examples. These include small Seifert fibered $L$ -spaces, a family of Whitehead-link surgery $L$ -spaces, $S^1\ti…

math.GT2026

The three-dimensional symplectization question for overtwisted contact structures

Nobuo Iida

We consider closed connected oriented three-manifolds equipped with positive cooriented contact structures. We prove that a symplectomorphism between their symplectizations forces…

math.SG2026

Stein structures not determined by the contact boundary

Nobuo Iida

We construct two Stein structures on the same compact smooth four-manifold whose boundary contact forms are strictly identified and whose first Chern classes agree, but whose exact…