Janko group J1
| Algebraic structure → Group theory Group theory | 
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In the area of modern algebra known as group theory, the Janko group J1 is a sporadic simple group of order
- 175,560 = 23 · 3 · 5 · 7 · 11 · 19
- ≈ 2×105.
| Algebraic structure → Group theory Group theory | 
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| Basic notions | 
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 Infinite dimensional Lie group  
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In the area of modern algebra known as group theory, the Janko group J1 is a sporadic simple group of order