#4688: wrap pari functions idealstar and ideallog
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Reporter: cremona | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.2.2
Component: number theory | Keywords:
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If I is an ideal in the ring of integers R of a number field K, then the
pari functions idealstar(K,I) returns the group {{{(R/I)^*}}} in the form
of an abstract abelian group (order, invariants, and a list of
generators). And ideallog() computes the discrete log with respect to I,
i.e. given a in K with valuation 0 at all primes dividing I, returns a
vector representing a mod I as an element of that abstract abelian group.
It would be very useful to have these wrapped in Sage. They appear in
libs/pari/decl.pxi already so that should not be hard.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4688>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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