Managing Editor: Bruinier, Jan Hendrik
Ed. by Cohen, Frederick R. / Droste, Manfred / Darmon, Henri / Duzaar, Frank / Echterhoff, Siegfried / Gordina, Maria / Neeb, Karl-Hermann / Shahidi, Freydoon / Sogge, Christopher D. / Takayama, Shigeharu / Wienhard, Anna
IMPACT FACTOR 2018: 0.867
CiteScore 2018: 0.71
SCImago Journal Rank (SJR) 2018: 0.898
Source Normalized Impact per Paper (SNIP) 2018: 0.964
Mathematical Citation Quotient (MCQ) 2017: 0.67
On twists of cuspidal representations of GL(2)
Let be σ Galois automorphism of a number field E. We determine the cuspidal representations π of GL2 () such that σ(π) ⋍ π ⊗ ω for some Hecke character ω. Our result is applied to extend the descent criterion of the base change theorem for GL(2) from cyclic extensions of prime degree to arbitrary cyclic extensions.
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