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Perturbing plane cruve singularities.

Eduardo Casas-Alvero, Rosa Peraire (2003)

Revista Matemática Iberoamericana

We describe the singularity of all but finitely-many germs in a pencil generated by two germs of plane curve sharing no tangent.

Plurisubharmonic functions with logarithmic singularities

E. Bedford, B. A. Taylor (1988)

Annales de l'institut Fourier

To a plurisubharmonic function u on C n with logarithmic growth at infinity, we may associate the Robin function ρ u ( z ) = lim sup λ u ( λ z ) - log ( λ z ) defined on P n - 1 , the hyperplane at infinity. We study the classes L + , and (respectively) L p of plurisubharmonic functions which have the form u = log ( 1 + | z | ) + O ( 1 ) and (respectively) for which the function ρ u is not identically - . We obtain an integral formula which connects the Monge-Ampère measure on the space C n with the Robin function on P n - 1 . As an application we obtain a criterion on the convergence of the Monge-Ampère...

Puiseux Expansion of a Cuspidal Singularity

Maciej Borodzik (2012)

Bulletin of the Polish Academy of Sciences. Mathematics

We present an effective and elementary method of determining the topological type of a cuspidal plane curve singularity with given local parametrization.

Quasipositivity and new knot invariants.

Lee Rudolph (1989)

Revista Matemática de la Universidad Complutense de Madrid

This is a survey (including new results) of relations ?some emergent, others established? among three notions which the 1980s saw introduced into knot theory: quasipositivity of a link, the enhanced Milnor number of a fibered link, and the new link polynomials. The Seifert form fails to determine these invariants; perhaps there exists an ?enhanced Seifert form? which does.

Quelques conséquences locales de la théorie de Hodge

François Loeser (1985)

Annales de l'institut Fourier

Un résultat de positivité de théorie de Hodge nous permet de déterminer certaines pôles de la distribution | f | 2 z pour f une fonction analytique à singularité isolée. Dans le cas des courbes et des singularités quasi-homogènes on détermine l’ensemble exact des pôles. On démontre aussi que si le résidu d’une forme holomorphe est de carré intégrable sur la fibre spéciale, l’intégrale sur la fibre spéciale est limite de celle sur les fibres voisines.

Racines de polynômes de Bernstein

Pierrette Cassou-Noguès (1986)

Annales de l'institut Fourier

On considère un polynôme P , à coefficients réels non négatifs, à deux indéterminées. On montre que la connaissance des pôles des intégrales 0 1 0 1 x 1 β 1 - 1 x 2 β 2 - 1 P ( x 1 , x 2 ) s d x 1 d x 2 donne des renseignements sur les racines du polynômes de Bernstein de P . La détermination des pôles des intégrales peut se faire en utilisant certaines méthodes de Mellin. Des calculs explicites sont donnés.

Resultant and the Łojasiewicz exponent

J. Chądzyński, T. Krasiński (1995)

Annales Polonici Mathematici

An effective formula for the Łojasiewicz exponent of a polynomial mapping of ℂ² into ℂ² at an isolated zero in terms of the resultant of its components is given.

Simple framed curve singularities

Victor Goryunov, Gabor Lippner (2008)

Banach Center Publications

We obtain a complete list of simple framed curve singularities in ℂ² and ℂ³ up to the framed equivalence. We also find all the adjacencies between simple framed curves.

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