Takahiro Oba

activity

20242026

collaborators

Showing math.GTShow all

2 papers · 1 filter

math.GT2026

Every cusp singularity link admits infinitely many strong symplectic fillings

Naohiko Kasuya, Takahiro Oba

In this paper, we show that if the link of an isolated complex surface singularity is either a $S o l^{3}$ -manifold or an $S L (2; R)$ -manifold with its canonical con…

math.GT2024

A note on Stein fillability of circle bundles over symplectic manifolds

Takahiro Oba

We show that, given a closed integral symplectic manifold $(Σ, ω)$ of dimension $2 n \geq 4$ , for every integer $k > \int_{Σ} ω^{n}$ , the Boothby-Wang bundle over $(Σ, k ω)$ carries no St…