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实特征标和实表示 被引量:1

Real Characters and Real Representation
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摘要 有限群的不可约实特征标未必由实表示提供.证明了当有限群G恰有3个不可约实特征标时,其中次数较大的非主不可约实特征标一定由实表示提供,并且还给出了其中的两个非主不可约实特征标的某些性质. The real characters of finite groups are not always afforded by real representations.Let G be a finite group,we write IrrR(G) for the set of irreducible realcharacters of G.When IrrR(G)={1G,φ,η},in this paper,we will prove the character φ must be afford by a real representation if φ(1)≥η(1).Furthermore,we will give some properties of φ and η.
出处 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第2期154-156,共3页 Journal of Xiamen University:Natural Science
基金 国家自然科学基金项目(11171243) 福建省自然科学基金项目(2011J01022)
关键词 实特征标 实表示 实共轭类 real character real representation real conjugacy class
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参考文献5

  • 1Isaacs I M. Character theory of finite groups[M]. New York: Academic Press, 1976.
  • 2Huppert B. Endliche gruppen I[M]. Berlin: Springer-Ver lag,1967.
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同被引文献15

  • 1HUPPERT B.Endliche Gruppen I[M].Berlin:Springer-Verlag,1967.
  • 2ISAACS I M.Character theory of finite groups[M].New York:Academic Press,1976.
  • 3IWASAKI S.On finite groups with exactly two real conjugacy classes[J].Archiv der Mathematik,1979,33(1):512-517.
  • 4MORETóA,NAVARRO G.Groups with three real valued irreducible characters[J].J Math,2008,163(1):85-92.
  • 5PHAM HUU T.Real ordinary characters and real brauer characters[J].Transactions of the American Mathematical Society,2015,367(2):1273-1312.
  • 6MARINELLI S,TIEP P H.Zeros of real irreducible characters of finite groups[J].Algebra and Number Theory,2013,7(3):567-593.
  • 7CHEN Xiaoyou.Finite groups with smallest order whose characters have real values[J].Journal of Shanxi University(Natural Science Edition),2013,36(4):544-547.
  • 8CHILLAG D,MANN A.Nearly odd-order and nearly real finite groups[J].Communications in Algebra,1998,26(7):2041-2064.
  • 9DOLFI S,NAVARRO G,TIEP P H.Primes dividing the degrees of the real characters[J].Mathematische Zeitschrift,2008,259(4):755-774.
  • 10DOLFI S,PACIFICI E,SANUS L.Finite groups with real-valued irreducible characters of prime size[J].Journal of Algebra,2008,320(5):2181-2195.

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