Mathematics – Number Theory
Scientific paper
2008-10-02
Mathematics
Number Theory
To appear in RIMS Kokyuroku Bessatsu. 17 pages
Scientific paper
Let $k$ be a field of characteristic $\neq 2$. We survey a general method of the field intersection problem of generic polynomials via formal Tschirnhausen transformation. We announce some of our recent results of cubic, quartic and quintic cases the details of which are to appear elsewhere. In this note, we give an explicit answer to the problem in the cases of cubic and dihedral quintic by using multi-resolvent polynomials.
Hoshi Akinari
Miyake Katsuya
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