References
Albert, A.A.: Structure of Algebras. Amer. Math. Soc. Colloq. Publ. 1939
Knus, M.-A., Ojanguren, M., Sridharan, R.: Quadratic forms and Azumaya algebras. J. Reine. Angew. Math.303/304, 231–248 (1978)
Knus, M.-A., Parimala, R., Sridharan, R.: Non-free projective modules over ℍ[X,Y] and stable bundles over ℙ2(ℂ). Invent. Math.65,13–27 (1981)
Knus, M.-A., Ojanguren, M., Parimala, R.: Positive definite quadratic bundles over the plane. Comment. Math. Helv.57, 400–411 (1982)
Kopeiko, V.I.: Quadratic spaces and quaternion algebras [Russian]. Zap. Naučn. Sem. Leningrad. Otdel. Mat. Inst. Steklov.75, 110–120 (1978).
Ojanguren, M., Parimala, R., Sridharan, R.: Indecomposable quadratic bundles of rank 4n over the real affine plane. Invent. Math.71, 643–653 (1983)
Parimala, R.: Projective modules and hermitian matrices. J. Pure Appl. Algebra7, 5–14 (1976).
Parimala, S.: Failure of a quadratic analogue of Serre's conjecture. Amer. J. Math.100, 913–924 (1978)
Parimala, R.: Automorphisms of non-free projective ideals of polynomial extensions of division rings. Arch. Math. (Basel)38, 531–534 (1982)
Parimala, S., Sridharan, R.: Projective modules over polynomial rings over division rings. J. Math. Kyoto Univ.15, 129–148 (1975)
Parimala, R., Sridharan, R.: A local global principle for quadratic forms over polynomial rings. J. Algebra74, 264–269 (1982)
Author information
Authors and Affiliations
Additional information
In memory of Singbal
Rights and permissions
About this article
Cite this article
Parimala, R., Sridharan, R. Indecomposable rank 4 quadratic spaces of non-trivial discriminant over polynomial rings. Math Z 183, 281–292 (1983). https://doi.org/10.1007/BF01176472
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01176472