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AlffPlaceMin

Returns the "minimum" of a place.

Syntax:

p := AlffPlaceMin(P);

prime polynomial or 1/T
  p  
alff place
  P  

See also:  AlffPlaceSplit

Description:

Let F = k(T,y) be an algebraic function field defined by f(T,y)=0 over k and frak{P} | \p be a place of F over a place \p of the rational function field k(T). This function returns a monic prime polynomial in k[T] or 1/T, corresponding to \p.


Example:


kash> AlffInit(FF(5,2));
"Defining global variables: k, w, kT, kTf, kTy, T, y, AlffGlobals"
kash> AlffOrders(y^3+T^3+1);
"Defining global variables: F, o, oi, one"
kash> P := AlffPlaceSplit(F, T+3)[1];
Alff place < [ T + 3, 0, 0 ], [ w^4, 1, 0 ] >
kash> AlffPlaceMin(P);
> T + 3


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