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In this note, we prove the connectivity of the Milnor fiber for a mixed polynomial $f(\mathbf z,\bar{\mathbf z})$, assuming the existence of a sequence of smooth points of $f^{-1}(0)$ converging to the origin. This result gives also a…

Algebraic Geometry · Mathematics 2018-09-05 Mutsuo Oka

Convenient mixed functions with strongly non-degenerate Newton boundaries have Milnor fibrations, as the isolatedness of the singularity follows from the convenience. In this paper, we consider the Milnor fibration for non-convenient mixed…

Algebraic Geometry · Mathematics 2014-09-24 Mutsuo Oka

We prove fibration theorems \`a la Milnor for differentiable real maps with non isolated critical values. We study the situation for maps with linear discriminant, and prove that the concept of d-regularity is the key point for the…

Algebraic Geometry · Mathematics 2020-02-18 JosÉ Luis Cisneros-Molina , AurÉlio Menegon , JosÉ Seade , Jawad Snoussi

We study the existence of Milnor fibration on a big enough sphere at infinity for a mixed polynomial $f: \bR^{2n} \to \bR^2$. By using strong non-degeneracy condition, we prove a counterpart of N\'emethi and Zaharia's fibration theorem. In…

Complex Variables · Mathematics 2012-07-18 Ying Chen

We consider a homogeneous polynomial of degree equal to a prime power and examine the cohomology of the Milnor fiber.

Algebraic Geometry · Mathematics 2022-06-06 David B. Massey

In this survey, we remind some fibrations structure theorems (also called Milnor's fibrations) recently proved in the real and complex case, in the local and global settings. We give several Poincar\'e-Hopf type formulae which relates the…

Algebraic Geometry · Mathematics 2014-09-18 Nicolas Dutertre , Raimundo N. Araújo Dos Santos , Ying Chen , Antonio Andrade

We describe a new algebro-geometric perspective on the study of the Milnor fibration and, as a first step toward putting it into practice, prove powerful criteria for a deformation of a holomorphic function germ to admit a stratification on…

Algebraic Geometry · Mathematics 2025-03-04 Alex Hof

We consider a mixed function of type $H(\mathbf z,\bar {\mathbf z})=f(\mathbf z)\bar g(\mathbf z)$ where $f$ and $g$ are convenient holomorphic functions which have isolated critical points at the origin and we assume that the intersection…

Algebraic Geometry · Mathematics 2019-09-04 Mutsuo Oka

Milnor fibrations were extended by Mutsuo Oka for certain mixed polynomial. In this paper, we study singular points of differentiable maps into the 2-dimensional torus, called Milnor fibration product maps, obtained by several Milnor…

Geometric Topology · Mathematics 2012-11-27 Daiki Sumida

We discuss and prove a number of cohomological results for Milnor fibers, real links, and complex links of local complete intersections with singularities of arbitrary dimension.

Algebraic Geometry · Mathematics 2014-02-24 David B. Massey

This brief survey of some singularity invariants related to Milnor fibers should serve as a quick guide to references. We attempt to place things into a wide geometric context while leaving technicalities aside. We focus on relations among…

Algebraic Geometry · Mathematics 2011-02-18 Nero Budur

In this paper we present new results about the topology of the Milnor fibrations of analytic function-germs with a special attention to the topology of the fibers. In particular, we provide a short review on the existence of the Milnor…

Algebraic Geometry · Mathematics 2022-12-08 Taciana O. Souza , Cesar A. Ipanaque Zapata

We study the Milnor monodromies of non-isolated hypersurface singularities and show that the reduced cohomology groups of the Milnor fibers are concentrated in the middle degree for some eigenvalues of the monodromies. As an application of…

Algebraic Geometry · Mathematics 2018-11-22 Takahiro Saito

For a polynomial $f$ in two complex variables, we prove that the multi-link at infinity of the 0-fiber $f^{-1}(0)$ is a fibred multi-link if and only if all the values different from 0 are regular at infinity.

Algebraic Geometry · Mathematics 2007-05-23 Arnaud Bodin

Khimshiashvili proved a topological degree formula for the Eu-ler characteristic of the Milnor fibres of a real function-germ with an isolated singularity. We give two generalizations of this result for non-isolated singularities. As…

Algebraic Geometry · Mathematics 2019-01-21 Nicolas Dutertre

We study the topology of real polynomial maps $\mathbb{R}^{4n} \longrightarrow \mathbb{R}^{4}$ expressed in terms of bicomplex variables and their conjugates, which we refer to as bicomplex mixed polynomials. We introduce the notion of…

Algebraic Geometry · Mathematics 2025-06-03 Yesenia Bravo , Inácio Rabelo , Agustín Romano-Velázquez

Milnor's fibration theorem and its generalizations play a central role in the study of singularities of complex and real analytic maps. In the complex analytic case, the Milnor fibration on the sphere is always given by the normalized map…

Complex Variables · Mathematics 2026-01-08 José Luis Cisneros Molina , Aurélio Menegon

We show that isolated surface singularities which are non-normal may have Milnor fibers which are non-diffeomorphic to those of their normalizations. Therefore, non-normal isolated singularities enrich the collection of Stein fillings of…

Algebraic Geometry · Mathematics 2015-03-06 Patrick Popescu-Pampu

This survey is the continuation of a series of works aimed at applying tools from Singularity Theory to Differential Equations. More precisely, we utilize the powerfull Milnor's Fibration Theory to give geometric-topological classifications…

Dynamical Systems · Mathematics 2023-08-28 Fernando Reis , Maico Ribeiro , Euripedes da Silva

We prove a Milnor-L\^e type fibration theorem for a subanalytic map $f: X \to Y$ between subanalytic sets $X \subset \mathbb{R}^m$ and $Y \subset \mathbb{R}^n$. Moreover, if $f$ extends to an analytic map $\mathbb{R}^m \to \mathbb{R}^n$, we…

Algebraic Geometry · Mathematics 2018-06-15 Rafaella de Souza Martins , Aurélio Menegon
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