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A generalized logarithmic module and duality of Coxeter multiarrangements

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 نشر من قبل Takuro Abe
 تاريخ النشر 2008
  مجال البحث
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 تأليف Takuro Abe




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We introduce a new definition of a generalized logarithmic module of multiarrangements by uniting those of the logarithmic derivation and the differential modules. This module is realized as a logarithmic derivation module of an arrangement of hyperplanes with a multiplicity consisting of both positive and negative integers. We consider several properties of this module including Saitos criterion and reflexivity. As applications, we prove a shift isomorphism and duality of some Coxeter multiarrangements by using the primitive derivation.



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