کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
841017 908497 2011 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the finite weak singularities of quadratic systems via invariant theory
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Characterization of the finite weak singularities of quadratic systems via invariant theory
چکیده انگلیسی

This article is about weak singularities of quadratic differential systems, that is, non-degenerate singular points with traces of the corresponding linearized systems at such points equal to zero. These could be foci, centers or saddles. Necessary and sufficient conditions for a real quadratic system to possess a fixed number of weak singularities of a specific order are given. The conditions are stated in terms of affine invariant polynomials in the 12-dimensional space of the coefficients.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Theory, Methods & Applications - Volume 74, Issue 17, December 2011, Pages 6553–6582
نویسندگان
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