Joachim König

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20152026

most citedSeptic equations are solvable by 2-fold origami

2 citations · 4 across the 16 of their papers we have counts for

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math.NT2020

Covering groups of $M_{22}$ as regular Galois groups over $Q$

Joachim König

We close a gap in the literature by showing that the full covering groups of the Mathieu group $M_{22}$ and of its automorphism group $A u t (M_{22})$ occur as the Galois group of $\m…

math.NT2020

Reducible Fibers of Polynomial Maps

Joachim König, Danny Neftin

For a degree $n$ polynomial $f$ over the rationals, the elements in the fiber $f^{- 1} (a)$ are of degree $n$ over $Q$ for most rational values $a$ by Hilbert's irreducibilit…

Covering groups of M22​ as regular Galois groups over Q

Reducible Fibers of Polynomial Maps

Covering groups of $M_{22}$ as regular Galois groups over $Q$