A Residue Calculus for Root Systems |
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Authors: | E P van den Ban H Schlichtkrull |
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Institution: | (1) Mathematisch Instituut, Universiteit Utrecht, P.O. Box 80010, 3508 TA Utrecht, The Netherlands;(2) Matematisk Institut, Københavns Universitet, Universitetsparken 5, 2100 København Ø, Denmark |
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Abstract: | Let V be a finite-dimensional real vector space on which a root system is given. Consider a meromorphic function on V
=V+iV, the singular locus of which is a locally finite union of hyperplanes of the form V
![Copf](/content/m1265755600617h2/xxlarge8450.gif) ![mid](/content/m1265755600617h2/xxlarge8739.gif) , = s, , s . Assume is of suitable decay in the imaginary directions, so that integrals of the form ![int](/content/m1265755600617h2/xxlarge8747.gif) +iV
, d make sense for generic V. A residue calculus is developed that allows shifting . This residue calculus can be used to obtain Plancherel and Paley–Wiener theorems on semisimple symmetric spaces. |
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Keywords: | hyperplane configuration residue operator residue weight root system |
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