Picard-Lefschetz monodromy of products

• Autores: Darren Salven Tapp
• Localización: Journal of pure and applied algebra, ISSN 0022-4049, Vol. 212, Nº 10, 2008, págs. 2314-2319
• Idioma: inglés
• DOI: 10.1016/j.jpaa.2008.03.017
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• Resumen

  • Let f and g be reduced homogeneous polynomials in separate sets of variables. We establish a simple formula that relates the eigenspace decomposition of the monodromy operator on the Milnor fiber cohomology of fg to that of f and g separately. We use a relation between local systems and Milnor fiber cohomology that has been established by D. Cohen and A. Suciu.