activity
20212026
most citedOn four-dimensional Dehn twists and Milnor fibrations

1 citations · 3 across the 7 of their papers we have counts for

collaborators

9 papers

math.GT2026

Exotic diffeomorphisms on closed aspherical -manifolds

Hokuto Konno, Jianfeng Lin, Anubhav Mukherjee +1

We study a class of diffeomorphisms of closed manifolds obtained from Davis' reflection trick construction, which are obtained by reflecting a diffeomorphism supported in the funda…

math.GT2025

Constraints on Lefschetz fibrations with four-dimensional fibers from Seiberg-Witten theory

Hokuto Konno, Jianfeng Lin, Anubhav Mukherjee +1

We establish constraints on the topology of smooth Lefschetz fibrations with -dimensional fibers, by studying the family Bauer-Furuta invariant. To compute this invariant, we an…

math.GT2025

A Morse complex for the homology of vanishing cycles

Aleksander Doan, Juan Muñoz-Echániz

We construct Morse homology groups associated with any regular function on a smooth complex algebraic variety, allowing singular and non-compact critical loci. These groups are gen…

math.GT2025

Configurations of Lagrangian spheres in surfaces

Juan Muñoz-Echániz

We study Dehn--Seidel twists on configurations of Lagrangian spheres in symplectic surfaces, using tools from Seiberg--Witten theory. In the case of configurations of La…

math.GT2025

Counting connections on Seifert-fibered spaces

Juan Muñoz-Echániz

We study the character variety of a Seifert-fibered homology -sphere from the point of view of gauge theory. Namely, we introduce a class of perturbations of…

math.GT2024

The monodromy diffeomorphism of weighted singularities and Seiberg--Witten theory

Hokuto Konno, Jianfeng Lin, Anubhav Mukherjee +1

We prove that the monodromy diffeomorphism of a complex 2-dimensional isolated hypersurface singularity of weighted-homogeneous type has infinite order in the smooth mapping class…

math.GT2024★ 1 cited

On four-dimensional Dehn twists and Milnor fibrations

Hokuto Konno, Jianfeng Lin, Anubhav Mukherjee +1

We study the monodromy diffeomorphism of Milnor fibrations of isolated complex surface singularities, by computing the family Seiberg--Witten invariant of Seifert-fibered Dehn twis…

math.SG2022★ 1 cited

Exotic Dehn twists on sums of two contact 3-manifolds

Eduardo Fernández, Juan Muñoz-Echániz

We exhibit the first examples of exotic contactomorphisms with infinite order as elements of the contact mapping class group. These are given by certain Dehn twists on the separati…

math.SG2021★ 1 cited

A monopole invariant for families of contact structures

Juan Muñoz-Echániz

We use monopole Floer homology to study the topology of the space of contact structures on a 3-manifold. Our main tool is a generalisation of the Kronheimer--Mrowka--Ozsváth--Szabó…