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In 2019, Abramovich--Temkin--Wlodarczyk and McQuillan used weighted blow-ups to obtain very fast and functorial algorithms for resolution of singularities in characteristic zero. Recently, Abramovich--Quek--Schober simplified the…

Algebraic Geometry · Mathematics 2025-12-02 Maxim Jean-Louis Brais

Let $X$ be a fs logarithmic scheme that is generically logarithmically smooth, and that admits a strict closed embedding into a logarithmically smooth scheme $Y$ over a field $\kk$ of characteristic zero. We construct a simple and fast…

Algebraic Geometry · Mathematics 2023-11-21 Ming Hao Quek

Building upon work of Villamayor and Bierstone-Milman we give a proof of the canonical Hironaka principalization and desingularization. The idea of "homogenized ideals" introduced in the paper gives {\it a priori} the canonicity of…

Algebraic Geometry · Mathematics 2007-05-23 Jaroslaw Wlodarczyk

These expository notes, addressed to non-experts, are intended to present some of Hironaka's ideas on his theorem of resolution of singularities. We focus particularly on those aspects which have played a central role in the constructive…

Algebraic Geometry · Mathematics 2011-07-19 Angélica Benito , Santiago Encinas , Orlando E. Villamayor U

In this paper we simplify and otherwise improve the local resolution of singularities algorithm of [G1]-[G3], providing a local resolution of singularities method that works for functions with convergent power series over an arbitrary local…

Classical Analysis and ODEs · Mathematics 2015-03-25 Michael Greenblatt

This paper contains a short and simplified proof of desingularization over fields of characteristic zero, together with various applications to other problems in algebraic geometry (among others, the study of the behavior of…

Algebraic Geometry · Mathematics 2007-10-03 A. Bravo , S. Encinas , O. Villamayor

We prove the existence of resolution of singularities for arbitrary (not necessarily reduced or irreducible) excellent two-dimensional schemes, via permissible blow-ups. The resolution is canonical, and functorial with respect to…

Algebraic Geometry · Mathematics 2013-02-19 Vincent Cossart , Uwe Jannsen , Shuji Saito

This article is an exposition of an elementary constructive proof of canonical resolution of singularities in characteristic zero, presented in detail in Invent. Math. 128 (1997), 207-302. We define a new local invariant and get an…

alg-geom · Mathematics 2008-02-03 Edward Bierstone , Pierre D. Milman

In this paper, a geometric resolution of singularities algorithm is developed. This method is elementary in its statement and proof, using explicit coordinate systems as much as possible. Each coordinate change used in the resolution…

Classical Analysis and ODEs · Mathematics 2016-06-22 Michael Greenblatt

We present a concise proof for the existence and construction of a {\it strong resolution of excellent schemes} of finite type over a field of characteristic zero. Our proof is based on earlier work of Villamayor, Encinas-Villamayor and…

Algebraic Geometry · Mathematics 2007-05-23 S. Encinas , H. Hauser

Building upon works of Hironaka, Bierstone-Milman, Villamayor and Wlodarczyk, we give an a priori estimate for the complexity of the simplified Hironaka algorithm. As a consequence of this result, we show that there exists canonical…

Algebraic Geometry · Mathematics 2012-06-15 Edward Bierstone , Dima Grigoriev , Pierre Milman , Jaroslaw Wlodarczyk

In characteristic zero, we construct a canonical, functorial resolution algorithm by weighted blow-ups that strictly preserves the normal crossings (nc) locus, effectively answering Kollar's problem. Operating in full generality, our…

Algebraic Geometry · Mathematics 2026-04-07 Jarosław Włodarczyk

For a conformal vector field on a closed, real-analytic, Lorentzian manifold we prove that the flow is locally isometric -- that it preserves a metric in the conformal class on a neighborhood of any point -- or the metric is everywhere…

Differential Geometry · Mathematics 2025-11-06 Sorin Dumitrescu , Charles Frances , Karin Melnick , Vincent Pecastaing , Abdelghani Zeghib

Hironaka's concept of characteristic polyhedron of a singularity has been one of the most powerful and fruitful ideas of the last decades in singularity theory. In fact, since then combinatorics have become a major tool in many important…

Algebraic Geometry · Mathematics 2010-05-31 R. Piedra , J. M. Tornero

In this paper we describe a computer implementation of Abramovich, Temkin, and Wlodarczyk's algorithm for resolving singularities in characteristic zero. Their "weighted resolution" algorithm proceeds by repeatedly blowing up along centers…

Algebraic Geometry · Mathematics 2020-08-06 Jonghyun Lee

We discuss Hironaka's theorem on resolution of singularities in charactetistic 0 as well as more recent progress, both on simplifying and improving Hironaka's method of proof and on new results and directions on families of varieties,…

Algebraic Geometry · Mathematics 2017-11-29 Dan Abramovich

This article contains an elementary constructive proof of resolution of singularities in characteristic zero. Our proof applies in particular to schemes of finite type and to analytic spaces (so we recover the great theorems of Hironaka).…

alg-geom · Mathematics 2008-02-03 Edward Bierstone , Pierre Milman

I begin by explaining to non-specialists why resolution of singularities in characteristic 0 works. Then I go into some ideas telling how it actually works. I finish with a brief discussion of related results on foliations. I report on work…

Algebraic Geometry · Mathematics 2025-03-24 Dan Abramovich

These are introductional notes to resolution of singularities and Log principalization of ideals over fields of characteristic zero. We refer to `A simplified proof of desingularization and applications', A. Bravo, S. Encinas and O.…

Algebraic Geometry · Mathematics 2007-05-23 O. Villamayor U

We identify many new solvable subcases of the general dynamical system characterized by two autonomous first-order ordinary differential equations with purely quadratic right-hand sides; the solvable character of these dynamical systems…

Mathematical Physics · Physics 2020-12-02 F. Calogero , R. Conte , F. Leyvraz
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