Classification of Hermitian Forms with the Neighbour Method

نویسنده

  • Alexander Schiemann
چکیده

The neighbour method of Kneser can be adapted to the hermitian case. Generalizing results of Hof91], we show that it can be used to classify any genus in a hermitian space of dimension 2 by neighbour steps at suitable primes. The method was implemented for positive deenite hermitian lattices (not necessarily free) over Q(p d). A table of class numbers of unimodular genera and the largest minima attained in those genera is given. We also describe a generalization of the LLL-algorithm to lattices in positive hermitian spaces over number elds.

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عنوان ژورنال:
  • J. Symb. Comput.

دوره 26  شماره 

صفحات  -

تاریخ انتشار 1998