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<p>&nbsp;<p>
<hr noshade size="5">
<h2><a name="AlffDivisorDeg"></a>
AlffDivisorDeg
</h2>

Degree of a divisor.

<p><p>

<h3>
Syntax:
</h3>
<pre>d := AlffDivisorDeg(D);</pre>

<p>

<table>
<tr>
<td>integer</td>
<td><pre>  d  </pre></td>
<td></td>
</tr>
<tr>
<td>alff divisor</td>
<td><pre>  D  </pre></td>
<td></td>
</tr>
</table>

<p>


See also:&nbsp;&nbsp;<a href="kashref.html#AlffPlaceDeg">AlffPlaceDeg</a>, <a href="kashref.html#AlffDivisorLDim">AlffDivisorLDim</a>, <a href="kashref.html#AlffGenus">AlffGenus</a>

<p>

<h3>
Description:
</h3>
This function returns the degree of an alff divisor over the
constant field of definition (not the exact constant field)
of the algebraic function field.

<p><p>

<p>
<hr>
<p>
<h3>
Example:
</h3>

<pre>

kash> AlffInit(FF(3,1));
"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> l := AlffPlaceSplit(F, 1/T);
[ Alff place < [ 1/T, 0, 0 ], [ 2/T, 1/T, (2*T + 2)/T ] >, 
  Alff place < [ 1/T, 0, 0 ], [ 2, (2*T + 2)/T, 2 ] > ]
kash> D := Sum(l);
Alff divisor
[ [ Alff place < [ 1/T, 0, 0 ], [ 2/T, 1/T, (2*T + 2)/T ] >, 1 ],
[ Alff place < [ 1/T, 0, 0 ], [ 2, (2*T + 2)/T, 2 ] >, 1 ] ]

kash> AlffDivisorDeg(D);
2
kash> a := AlffElt(o, [0, 1, 2]);
[ 0, 1, 2 ]
kash> AlffDivisorDeg(AlffDivisor(a));
> 0

</pre>

<p>


<hr>

<p>
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