"Differential Galois theory"의 두 판 사이의 차이

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11번째 줄: 11번째 줄:
 
<h5>elemetary extension</h5>
 
<h5>elemetary extension</h5>
  
* using exponential and logarithm 
+
* using exponential and logarithm
 +
*  
  
 
 
 
 
25번째 줄: 26번째 줄:
 
<h5>Picard-Vessiot extension</h5>
 
<h5>Picard-Vessiot extension</h5>
  
* o
+
* examples<br>
 +
** algebraic extension
 +
** adjoining an integral
 +
** adjoining the exponential of an integral
 +
 
 +
 
 +
 
 +
theorem
 +
 
 +
If a Picard-Vessiot extension is a Liouville extension, then the Galois group of this extension is solvable.
  
 
 
 
 

2009년 8월 26일 (수) 20:11 판

 

elemetary extension
  • using exponential and logarithm
  •  

 

 

Liouville extension
  • we can adjoin integrals and exponentials of integrals

 

Picard-Vessiot extension
  • examples
    • algebraic extension
    • adjoining an integral
    • adjoining the exponential of an integral

 

theorem

If a Picard-Vessiot extension is a Liouville extension, then the Galois group of this extension is solvable.

 

 

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