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AlffSignature

Returns the signature of a global function field extension F/FF_q(T).

Syntax:

L := AlffSignature(F);

list
  L  
global function field
  F  

See also:  AlffPlaceSplit, AlffUnitRank

Description:

The function returns the list L:=[[e_1,f_1], … ,[e_s,f_s]] consisting of the ramification and relative degrees of the inequivalent valuations of F extending the degree valuation of FF_q(T) ordered according to (e_i


Example:


kash> AlffInit(FF(5,2));
"Defining global variables: k, w, kT, kTf, kTy, T, y, AlffGlobals"
kash> AlffOrders(y^3+T^4+1);
"Defining global variables: F, o, oi, one"
kash> AlffSignature(F);
> [ [ 3, 1 ] ]


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