A Poincaré index formula for surfaces with boundary
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Publication:1979115
zbMath1004.57024MaRDI QIDQ1979115
Jaume Llibre, Jordi Villadelprat
Publication date: 24 May 2000
Published in: Differential and Integral Equations (Search for Journal in Brave)
Vector fields, frame fields in differential topology (57R25) Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Degree, winding number (55M25)
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