Skip to main content
Log in

Stable rationality of certain PGLn-quotients

  • Published:
Inventiones mathematicae Aims and scope

Summary

Stable rationality of the field of matrix invariants ℂM n ×M n )PGL n is proved forn=5 andn=7. In combination with existing results this shows that ℂ (V)PGL n is stably rational wheneverV is an almost free representation ofPGL n andn divides 420=22·3·5·7.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Benson, D.: Modular Representation Theory: New Trends and Methods. (Lect Notes Math., vol. 1081) Berlin Heidelberg, New York: Springer 1984

    MATH  Google Scholar 

  2. Benson, D.J., Parker, R.A.: The Green ring of a finite group. J. Algebra87, 290–331 (1984)

    Article  MathSciNet  MATH  Google Scholar 

  3. Bogomolov, F.A.: The stable rationality of quotient spaces for simply connected groups. Math. USSR Sb.58, 1–14 (1987)

    Article  MATH  Google Scholar 

  4. Colliot-Thélène, J-L., Sansuc, J-J.: LaR-équivalence sur les tores. Ann. Sci. Éc. Norm. Super.10, 175–229 (1977)

    MATH  Google Scholar 

  5. Colliot-Thélène, J-L., Sansuc, J-J.: Principal homogeneous spaces under flasque tori: applications. J. Algebra106, 148–205 (1987)

    Article  MathSciNet  MATH  Google Scholar 

  6. Curtis, C.W., Reiner, I.: Methods of Representation Theory I. New York: Wiley-Interscience 1981

    MATH  Google Scholar 

  7. Curtis, C.W., Reiner, I.: Methods of Representation Theory II. New York: Wiley-Interscience 1981

    MATH  Google Scholar 

  8. Dolgachev, I.V.: Rationality of fields of invariants. In: Bloch, S.J. )ed.) Algebraic Geometry Bowdoin 1985, Proc. Symp. Pure Math.46, Part 2, 3–16 (1987)

  9. Dress, A.: The permutation class group of a finite group. J. Pure Appl. Algebra6, 1–12 (1975)

    Article  MathSciNet  MATH  Google Scholar 

  10. Endo, S., Miyata, T.: On a classification of the function fields of algebraic tori. Nagoya Math. J.56, 85–104 (1974)

    MathSciNet  MATH  Google Scholar 

  11. Endo, S., Miyata, T.: On the projective class group of finite groups. Osaka J. Math.13, 109–122 (1976)

    MathSciNet  MATH  Google Scholar 

  12. Formanek, E.: The center of the ring of 3×3 generic matrices. Linear Multilinear Algebra7, 203–212 (1979)

    Article  MathSciNet  MATH  Google Scholar 

  13. Formanek, E.: The center of the ring of 4×4 generic matrices. J. Algebra62, 304–319 (1980)

    Article  MathSciNet  MATH  Google Scholar 

  14. Hulek, K.: On the classification of stable rankr vector bundles over the projective plane. Prog. Math.7, 113–144 (1980)

    MathSciNet  Google Scholar 

  15. Kempf, G. et al.: Toroidal Embeddings. (Lect Notes Math., vol. 339) Berlin, Heidelberg, New York: Spinger 1973

    MATH  Google Scholar 

  16. Le Bruyn, L., Schofield, A.: Rational invariants of quivers and the ring of matrixinvariants. NATO-ASI Ser. C-233, 21–30 (1988)

  17. Lenstra, H.W.: Rational functions invariant under a finite abelian group. Invent. Math.25, 299–325 (1974)

    Article  MathSciNet  MATH  Google Scholar 

  18. Mumford, D., Fogarty, J.: Geometric Invariant Theory (2nd edition). Berlin, Heidelberg, New York: Springer 1981

    MATH  Google Scholar 

  19. Oliver, R.:G-actions on disks and permutation representations. J. Algebra50, 44–62 (1978)

    Article  MathSciNet  MATH  Google Scholar 

  20. Procesi, C.: Non-commutative affine rings. Atti Accad. Naz. Lincei, VIII. Ser., v. VIII, fo.6, 239–255 (1967)

    MathSciNet  MATH  Google Scholar 

  21. Procesi, C.: The invariant theory ofn×n matrices. Adv. Math.19, 306–381 (1976)

    Article  MathSciNet  MATH  Google Scholar 

  22. Reiner, I.: Maximal Orders. London: Academic Press 1975

    MATH  Google Scholar 

  23. Saltman, D.J.: Retract rational fields and cyclic Galois extensions. Isr. J. Math.47, 165–215 (1984)

    Article  MathSciNet  MATH  Google Scholar 

  24. Saltman, D.J.: The Brauer group and the center of generic matrices. J. Algebra97, 53–67 (1985)

    Article  MathSciNet  MATH  Google Scholar 

  25. Schofield, A.: Matrix invariants of composite size. 1989 (Preprint)

  26. Serre, J.P.: Corps Locaux. Paris: Hermann 1962

    MATH  Google Scholar 

  27. Swan, R.G.: Invariant rational functions and a problem of Steenrod. Invent. Math.7, 148–158 (1969)

    Article  MathSciNet  MATH  Google Scholar 

  28. Swan, R.G.: Noether's Problem in Galois theory. In: Srinivasan, B., Sally, J. (eds.) Emmy Noether in Bryn Mawr. Berlin, Heidelberg, New York: Springer 1983, pp. 21–40

    Chapter  Google Scholar 

  29. Sylvester, J.: On the involution of two matrices of the second order. Southport: British Association Report 1883, pp. 430–432

  30. Voskresenskiî, V.E.: Rationality of certain algebraic tori. Math. USSR, Izv.5, 1049–1056 (1971)

    Article  MATH  Google Scholar 

  31. Voskresenskiî, V.E.: The birational invariants of algebraic tori. Usp. Mat. Nauk30/3n2, 207–208 (1975)

    MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Oblatum 1-VII-1989 & 15-VI-1990 & 19-VII-1990

Partially supported by the DFG

Research associate of the NFWO

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bessenrodt, C., Le Bruyn, L. Stable rationality of certain PGLn-quotients. Invent. math. 104, 179–199 (1991). https://doi.org/10.1007/BF01245071

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01245071

Keywords

Navigation