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Turkish Journal of Mathematics

DOI

10.55730/1300-0098.3491

Abstract

We show that a number field of the form Q(λ) admits a symplectic form which is invariant under multiplication by λ if and only if the minimal polynomial of λ is palindromic of even degree. In particular, if λ is an algebraic integer, it is forced to be a unit. In the case when the minimal polynomial of λ is palindromic of degree 2d, we show that there is a d-dimensional space of invariant symplectic forms on Q(λ) .

Keywords

Number field, symplectic form, invariance, palindromic

First Page

53

Last Page

61

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