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Surjective Linear Maps Between Root Systems with Zero

Published online by Cambridge University Press:  20 November 2018

D. Ž. Đoković  and
Nguyêñ Q. Thãńg
D. Ž. Đoković
Affiliation:
Department of Pure Mathematics, University of Waterloo, Waterloo, Ontario, N2L 3G1
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Abstract

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If R1 and R2 are root systems and there is a linear map which maps R1 ∪{0} onto R2∪{0} we write R1 —> R2. We determine all pairs (R1, R2) of irreducible root systems such that R1 —> R2.

Keywords

17B2017B25
Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 39 , Issue 1 , 01 March 1996 , pp. 25 - 34
Copyright
Copyright © Canadian Mathematical Society 1995

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