Results 21 to 30 of about 1,001 (184)

Milnor numbers in deformations of homogeneous singularities [PDF]

open access: yesBulletin des Sciences Mathématiques, 2021
Let f_0 be a plane curve singularity. We study the Minor numbers of singularities in deformations of f_0. We completely describe the set of these Milnor numbers for homogeneous singularities f_0 in the case of non-degenerate deformations and obtain some partial results on this set in the general case.
Brzostowski, Szymon   +2 more
openaire   +2 more sources

THE CHERN–SCHWARTZ–MACPHERSON CLASS OF AN EMBEDDABLE SCHEME

open access: yesForum of Mathematics, Sigma, 2019
The Chern–Schwartz–MacPherson class of a hypersurface in a nonsingular variety may be computed directly from the Segre class of the Jacobian subscheme of the hypersurface; this has been known for a number of years.
PAOLO ALUFFI
doaj   +1 more source

Improving the computation of invariants of plane curve singularities

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
In this article we present an algorithm to compute the incidence matrix of the resolution graph, the total multiplicities, the strict multiplicities and the Milnor number of a reduced plane curve singularity and its implemetation in ...
Binyamin Muhammad Ahsan
doaj   +1 more source

On the Milnor number of non-isolated singularities of holomorphic foliations and its topological invariance

open access: yes, 2021
We define the Milnor number -- as the intersection number of two holomorphic sections -- of a one-dimensional holomorphic foliation $\mathscr{F}$ with respect to a compact connected component $C$ of its singular set.
Rosas, Rudy   +2 more
core   +1 more source

Survival of Staphylococcus aureus on the outer shell of fire fighter turnout gear after sanitation in a commercial washer/extractor

open access: yesJournal of Occupational Medicine and Toxicology, 2019
Background Methicillin-resistant Staphylococcus aureus contamination on surfaces including turnout gear had been found throughout a number of fire stations.
Daniel Farcas   +6 more
doaj   +1 more source

A Classiffier for Unimodular Isolated Complete Intersection Space Curve Singularities

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
C.T.C. Wall classified the unimodular complete intersection singularities. He indicated in the list only the μ-constant strata and not the complete classification in each case.
Afzal Deeba, Pfister Gerhard
doaj   +1 more source

A geometric interpretation of Milnor’s triple linking numbers [PDF]

open access: yesAlgebraic & Geometric Topology, 2003
Milnor's triple linking numbers of a link in the 3-sphere are interpreted geometrically in terms of the pattern of intersections of the Seifert surfaces of the components of the link. This generalizes the well known formula as an algebraic count of triple points when the pairwise linking numbers vanish.
Mellor, Blake, Melvin, Paul
openaire   +4 more sources

Hyperplane Arrangements and Mixed Hodge Numbers of the Milnor Fiber [PDF]

open access: yesInternational Mathematics Research Notices, 2021
Abstract For a complex central essential hyperplane arrangement $\mathcal{A}$, let $F_{\mathcal{A}}$ denote its Milnor fiber. We use Tevelev’s theory of tropical compactifications to study invariants related to the mixed Hodge structure on the cohomology of $F_{\mathcal{A}}$.
Kutler, Max, Usatine, Jeremy
openaire   +2 more sources

Image Milnor Number Formulas for Weighted-Homogeneous Map-Germs [PDF]

open access: yes, 2021
We give formulas for the image Milnor number of a weighted-homogeneous map-germ $(\mathbb{C}^n,0)\to(\mathbb{C}^{n+1},0)$, for $n=4$ and $5$, in terms of weights and degrees.
Peñafort Sanchis, Guillermo   +1 more
core   +1 more source

Milnor number and Tjurina number of complete intersections

open access: yesMathematische Annalen, 1985
Let (X,x) be an isolated complete intersection singularity of dimension \(n\geq 2\). The main result of this note is a formula for the difference of the Milnor number \(\mu\) (X,x) and dim \(T^ 1_{X,x}\) (the dimension of the base of a miniversal deformation of (X,x)). It is of the form: \(\mu(X,x)-\dim T^ 1_{X,x}=\sum^{n-1}_{p=0}h^{p,0}(X,x)+a_ 1+a_ 2+
Looijenga, Eduard, Steenbrink, Joseph
openaire   +2 more sources

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