On elements of order p^s in the plane Cremona group over a field of characteristic p
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🧮 math.AG
math.GR
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elementsordercharacteristiccontaincremonafieldgroupplane
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We show that the plane Cremona group over a field of characteristic p > 0 does not contain elements of order of power of p larger than 2 and it does not contain elements of order p^2 unless p =2. Also we describe conjugacy classes of elements of order 4.
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