# Affine invariant conditions for the topological distinction of quadratic systems with a critical point of the 4th multiplicity.

Mark Voldman; Iu. T. Calin; Nicolae I. Vulpe

Publicacions Matemàtiques (1996)

- Volume: 40, Issue: 2, page 431-441
- ISSN: 0214-1493

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topVoldman, Mark, Calin, Iu. T., and Vulpe, Nicolae I.. "Affine invariant conditions for the topological distinction of quadratic systems with a critical point of the 4th multiplicity.." Publicacions Matemàtiques 40.2 (1996): 431-441. <http://eudml.org/doc/41265>.

@article{Voldman1996,

abstract = {The affine invariant partition of the set of quadratic systems with one finite singular point of the 4th multiplicity with respect to different topological classes is accomplished. The conditions corresponding to this partition are semi-algebraic, i.e. they are expressed as equalities or inequalities between polynomials.},

author = {Voldman, Mark, Calin, Iu. T., Vulpe, Nicolae I.},

journal = {Publicacions Matemàtiques},

keywords = {Ecuaciones diferenciales ordinarias; Resolución de ecuaciones; Invariancia; Ecuación cuadrática; Puntos singulares; Algebra de polinomios; Desigualdades; Propiedades topológicas; critical point; affine invariant partition; quadratic systems; finite singular point},

language = {eng},

number = {2},

pages = {431-441},

title = {Affine invariant conditions for the topological distinction of quadratic systems with a critical point of the 4th multiplicity.},

url = {http://eudml.org/doc/41265},

volume = {40},

year = {1996},

}

TY - JOUR

AU - Voldman, Mark

AU - Calin, Iu. T.

AU - Vulpe, Nicolae I.

TI - Affine invariant conditions for the topological distinction of quadratic systems with a critical point of the 4th multiplicity.

JO - Publicacions Matemàtiques

PY - 1996

VL - 40

IS - 2

SP - 431

EP - 441

AB - The affine invariant partition of the set of quadratic systems with one finite singular point of the 4th multiplicity with respect to different topological classes is accomplished. The conditions corresponding to this partition are semi-algebraic, i.e. they are expressed as equalities or inequalities between polynomials.

LA - eng

KW - Ecuaciones diferenciales ordinarias; Resolución de ecuaciones; Invariancia; Ecuación cuadrática; Puntos singulares; Algebra de polinomios; Desigualdades; Propiedades topológicas; critical point; affine invariant partition; quadratic systems; finite singular point

UR - http://eudml.org/doc/41265

ER -

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