If is a finite Galois extension with an almost monomial Galois group and if is not a common zero for any two Artin L-functions associated to distinct complex irreducible characters of the Galois group, then all Artin L-functions of are holomorphic at . We present examples and basic properties of almost monomial groups.
 G. James and A. Kerber, The Representation Theory of the Symmetric Group, Addison-Wesley, Boston, 1991. Search in Google Scholar
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