Article ID Journal Published Year Pages File Type
4585364 Journal of Algebra 2013 12 Pages PDF
Abstract

For any number field K, it is unknown which finite groups appear as Galois groups of extensions L/K such that L is a maximal subfield of a division algebra with center K (a K-division algebra). For K=Q, the answer is described by the long standing Q-admissibility conjecture.We extend a theorem of Neukirch on embedding problems with local constraints in order to determine for every number field K, what finite solvable groups G appear as Galois groups of tamely ramified maximal subfields of K-division algebras, generalizing Liedahlʼs theorem for metacyclic G and Sonnʼs solution of the Q-admissibility conjecture for solvable groups.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory