3 citations · 5 across the 4 of their papers we have counts for
6 papers
Classification of genus- holomorphic Lefschetz pencils
Noriyuki Hamada, Kenta Hayano
In this paper, we classify relatively minimal genus- holomorphic Lefschetz pencils up to smooth isomorphism. We first show that such a pencil is isomorphic to either the pencil…
Topology of Pareto sets of strongly convex problems
Naoki Hamada, Kenta Hayano, Shunsuke Ichiki +2
A multiobjective optimization problem is simplicial if the Pareto set and front are homeomorphic to a simplex and, under the homeomorphisms, each face of the simplex corresponds to…
Unchaining surgery and topology of symplectic 4-manifolds
R. Inanc Baykur, Kenta Hayano, Naoyuki Monden
We study a symplectic surgery operation we call unchaining, which effectively reduces the second Betti number and the symplectic Kodaira dimension at the same time. Using unchainin…
Stability of non-proper functions
Kenta Hayano
The purpose of this paper is to give a sufficient condition for (strong) stability of non-proper smooth functions (with respect to the Whitney -topology). We show that a…
On diagrams of simplified trisections and mapping class groups
Kenta Hayano
A simplified trisection is a trisection map on a 4-manifold such that, in its critical value set, there is no double point and cusps only appear in triples on innermost fold circle…
Topology of holomorphic Lefschetz pencils on the four-torus
Noriyuki Hamada, Kenta Hayano
In this paper we discuss topological properties of holomorphic Lefschetz pencils on the four-torus. Relying on the theory of moduli spaces of polarized abelian surfaces, we first p…