Abstract
A class of finite local rings of characteristic p2 is here analyzed and classified up to isomorphism, this being a natural analogue of a class of rings of characteristic p already treated by B. Corbas and the author. The solution amounts to determining the orbits of certain groups of similitudes acting on M2(Fp). The determination of this class of rings is a cornerstone in a forthcoming complete classification of all finite rings of order pn (n ≤ 5).
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B. CORBAS and G. D. WILLIAMS, Rings of order p5, Part I: Nonlocal rings. J.Algebra (2000), to appear.
B. CORBAS and G. D. WILLIAMS, Rings of order p5, Part II: Local rings. J.Algebra (2000), to appear.
B. CORBAS and G. D. WILLIAMS, Congruence of two-dimensional subspaces in M2(K) (characteristic ≠ 2). Pacific J. Math. 188, 225–235 (1999).
B. CORBAS and G. D. WILLIAMS, Congruence of two-dimensional subspaces in M2(K) (characteristic 2). Pacific J. Math. 188, 237–249 (1999).
J. B. DERR, G. F. ORR and P. S. PECK, Noncommutative rings of order p4. J. Pure Appl. Algebra 97, 109–116 (1994).
J. DIEUDONNÉ, La Géométrie des Groupes Classiques, 3me ed. Springer-Verlag, Berlin 1971.
N. JACOBSON, Basic Algebra I. Freeman, San Francisco 1974.
G. D. WILLIAMS, Congruence of (2 × 2) matrices. Discrete Math. (2000), to appear.
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Williams, G.D. On a Class of Finite Rings of Characteristic p 2 . Results. Math. 38, 377–390 (2000). https://doi.org/10.1007/BF03322018
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DOI: https://doi.org/10.1007/BF03322018