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AlffIharaBound

missing shortdoc

Syntax:

b := AlffIharaBound(F);
b := AlffIharaBound(q, g);

global function field
  F  
integer
  q, g  
integer
  b  

See also:  AlffSerreBound, AlffPlacesDegOneNumBound

Description:

Computes the Ihara bound for a global function field over the exact constant field {\Bbb F}_q for the number of places of degree one from the function field or for given q and g, where q is the size of the finite field and g denotes the genus.


Example:


kash> AlffInit(FF(2,1));
"Defining global variables: k, w, kT, kTf, kTy, T, y, AlffGlobals"
kash> AlffOrders(y^3 + T^3 * y + T);
"Defining global variables: F, o, oi, one"
kash> AlffGenus(F);
3
kash> AlffIharaBound(F);
8
kash> AlffIharaBound(2, 1);
> 5


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