# On the definition of transfer factors

@article{Langlands1987OnTD,
title={On the definition of transfer factors},
author={Robert P. Langlands and D. Shelstad},
journal={Mathematische Annalen},
year={1987},
volume={278},
pages={219-271}
}
• Published 1 March 1987
• Mathematics
• Mathematische Annalen
229 Citations
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• Mathematics
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In the paper [L] a project for proving the existence of transfer factors for forms of SL(3), especially for the unitary groups studied by Rogawski, was begun, and it was promised that it would be
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If G is a reductive group over a local or global field then it is possible to attach to G the endoscopic groups studied by Shelstad ([16] and the references therein) and myself ([5]). Over the real
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