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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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11 papers · 1 filter

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 -spaces, a family of Whitehead-link surgery -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.GT2025

The pretzel knot is not squeezed

Nobuo Iida, Tatsumasa Suzuki

We prove that an infinite family of three-strand pretzel knots is not squeezed. In particular, we show that is not squeezed. This answers a question posed by Lewark (…

math.GT2025

On the slice-torus invariant from -equivariant Seiberg--Witten Floer cohomology

Nobuo Iida, Taketo Sano, Kouki Sato +1

We show that Iida--Taniguchi's -valued slice-torus invariant cannot be realized as a linear combination of Rasmussen's -invariant, Ozsváth--Szabó's -invaria…

math.GT2024

Monopoles and transverse knots

Nobuo Iida, Masaki Taniguchi

We present a framework for studying transverse knots and symplectic surfaces utilizing the Seiberg-Witten monopole equation. Our primary approach involves investigating an equivari…

math.GT2024

Rank three instantons, representations and sutures

Aliakbar Daemi, Nobuo Iida, Christopher Scaduto

We show that the knot group of any knot in any integer homology sphere admits a non-abelian representation into such that meridians are mapped to matrices whose eigenvalues…

math.GT2023

Bennequin-Plamenevskaya-Shumakovitch type inequalities for Kronheimer-Mrowka's concordance invariant

Nobuo Iida

We give Bennequin-Plamenevskaya-Shumakovich type lower bounds for the concordance invariant introduced by Kronheimer and Mrowka. The proof is a consequence of computations…

math.GT2022

A note on generalized Thurston--Bennequin inequalities

Nobuo Iida, Hokuto Konno, Masaki Taniguchi

We give a generalized Thurston--Bennequin-type inequality for links in using a Bauer--Furuta-type invariant for 4-manifolds with contact boundary. As a special case, we also…

math.GT2022

Diffeomorphisms of 4-manifolds with boundary and exotic embeddings

Nobuo Iida, Hokuto Konno, Anubhav Mukherjee +1

We define family versions of the invariant of 4-manifolds with contact boundary due to Kronheimer and Mrowka and use these to detect exotic diffeomorphisms of 4-manifolds with boun…

math.GT2021★ 4 cited

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

Nobuo Iida, Anubhav Mukherjee, Masaki Taniguchi

Our main result gives an adjunction inequality for embedded surfaces in certain -manifolds with contact boundary under a non-vanishing assumption on the Bauer--Furuta type invar…

math.GT2020★ 1 cited

Seiberg-Witten Floer homotopy contact invariant

Nobuo Iida, Masaki Taniguchi

We introduce a Floer homotopy version of the contact invariant introduced by Kronheimer-Mrowka-Ozváth-Szabó. Moreover, we prove a gluing formula relating our invariant with the fir…