The density of representation degrees

• Autores: Martin W. Liebeck, Dan Segal, Aner Shalev
• Localización: Journal of the European Mathematical Society, ISSN 1435-9855, Vol. 14, Nº 5, 2012, págs. 1519-1537
• Idioma: inglés
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• Resumen

  • For a group G and a positive real number x , define d G (x) to be the number of integers less than x which are dimensions of irreducible complex representations of G . We study the asymptotics of d G (x) for algebraic groups, arithmetic groups and finitely generated linear groups. In particular we prove an "alternative" for finitely generated linear groups G in characteristic zero, showing that either there exists a>0 such that d G (x)>x a for all large x , or G is virtually abelian (in which case d G (x) is bounded).