The thick-thin decomposition and the bilipschitz classification of normal surface singularities

L Birbrair, WD Neumann, A Pichon - Acta Mathematica, 2014 - projecteuclid.org
We describe a natural decomposition of a normal complex surface singularity (X, 0) into its
“thick” and “thin” parts. The former is essentially metrically conical, while the latter shrinks …

Thick-thin decomposition for real definable isolated singularities

L Birbrair, A Fernandes, V Grandjean - Indiana University Mathematics …, 2017 - JSTOR
Two subset germs of Euclidean spaces are called blow-spherically equivalent if their
spherical modifications are homeomorphic and the homeomorphism induces …

An introduction to Lipschitz geometry of complex singularities

A Pichon - Introduction to Lipschitz Geometry of Singularities …, 2020 - Springer
The aim of this paper to introduce the reader to a recent point of view on the Lipschitz
classifications of complex singularities. It presents the complete classification of Lipschitz …

Invariants for bi-Lipschitz equivalence of ideals

C Bivià-Ausina, T Fukui - The Quarterly Journal of Mathematics, 2017 - academic.oup.com
We introduce the notion of bi-Lipschitz equivalence of ideals and derive numerical invariants
for such equivalence. In particular, we show that the log canonical threshold of ideals is a bi …

Choking Horns in Lipschitz Geometry of Complex Algebraic Varieties. Appendix by Walter D. Neumann

L Birbrair, A Fernandes, V Grandjean… - The Journal of Geometric …, 2014 - Springer
The paper studies the Lipschitz geometry of germs of complex algebraic varieties and
introduces the notion of a choking horn. A choking horn is a family of cycles on an algebraic …

Collapsing topology of isolated singularities

L Birbrair, A Fernandes, V Grandjean - arXiv preprint arXiv:1208.4328, 2012 - arxiv.org
We proof here the existence of a topological thick and thin decomposition of any closed
definable thick isolated singularity germ in the spirit of the recently discovered metric thick …

Some classes of homeomorphisms that preserve multiplicity and tangent cones

JE Sampaio - arXiv preprint arXiv:1911.08346, 2019 - arxiv.org
In this paper we present some applications of A'Campo-L\^ e's Theorem and we study some
relations between Zariski's Questions A and B. It is presented some classes of …

Generic linear sections of complex hypersurfaces and monomial ideals

C Bivià-Ausina - Topology and its Applications, 2012 - Elsevier
Let f:(Cn, 0)→(C, 0) be an analytic function germ. Under the hypothesis that f is Newton non-
degenerate, we compute the μ⁎-sequence of f in terms of the Newton polyhedron of f. This …

Local bi-lipschitz classification of semialgebraic surfaces

J Brasselet, MAS Ruas, T Nguyen - arXiv preprint arXiv:1902.02235, 2019 - arxiv.org
We provide bi-Lipschitz invariants for finitely determined map germs $ f:(\mathbb {K}^ n, 0)\to
(\mathbb {K}^ p, 0) $, where $\mathbb {K}=\mathbb {R} $ or $\mathbb {C} $. The aim of the …

[HTML][HTML] Exceptional rays and bilipschitz geometry of real surface singularities

D O'Shea, L Wilson - Topology and its Applications, 2018 - Elsevier
Exceptional rays and bilipschitz geometry of real surface singularities - ScienceDirect Skip
to main contentSkip to article Elsevier logo Journals & Books Search RegisterSign in View …