Journal of Topology Advance Access originally published online on October 25, 2007
Journal of Topology 2008 1(1):87-114; doi:10.1112/jtopol/jtm007
© 2007 London Mathematical Society
The tower of K-theory of truncated polynomial algebras
Lars Hesselholt, Department of Mathematics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA, larsh{at}math.mit.edu
Graduate School of Mathematics, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan, larsh{at}math.nagoya-u.ac.jp
Let A be a regular noetherian Fp-algebra. The relative K-groups Kq(A[x]/(xm),(x)) and the Nil-groups Nilq(A[x]/(xm)) were evaluated by the author and Ib Madsen in terms of the big de Rham–Witt groups Wr
Aq of the ring A. In this paper, we evaluate the maps of relative K-groups and Nil-groups induced by the canonical projection f: A[x]/(xm)
A[x]/(xn). The result depends strongly on the prime p. It generalizes earlier work by Stienstra on the groups in degrees 2 and 3.
Received February 28, 2007.
2000 Mathematics Subject Classification 19D55 (primary), 19E15 (secondary)
Research supported in part by the National Science Foundation.
References
- Bass H. Algebraic K-theory (1968) New York: W. A. Benjamin.
- Bloch S., Esnault H. The additive dilogarithm, Kazuya Kato's Fiftieth Birthday. Doc. Math. (2003) Extra Vol.:131–155.
- Grothendieck A. Éléments de géométrie algébrique. IV. Étude locale des schémas et des morphismes de schémas (Quatrième Partie). Inst. Hautes Études Sci. Publ. Math. (1967) 32:361.
- Hesselholt L. On the p-typical curves in Quillens K-theory. Acta Math. (1997) 177:1–53.[CrossRef]
- Hesselholt L. K-theory of truncated polynomial algebras. Handbook of K-theory (2005) vol. 1. New York: Springer. 71–110.
- Hesselholt L., Madsen I. Cyclic polytopes and the K-theory of truncated polynomial algebras. Invent. Math. (1997) 130:73–97.[CrossRef]
- Hesselholt L., Madsen I. On the K-theory of finite algebras over Witt vectors of perfect fields. Topology (1997) 36:29–102.[CrossRef][ISI]
- Hesselholt L., Madsen I. On the K-theory of nilpotent endomorphisms. Homotopy methods in algebraic topology, Boulder, CO, 1999, Contemp. Math. 271 (2001) Providence, RI: American Mathematical Society. 127–140.
- Hesselholt L., Madsen I. On the K-theory of local fields. Ann. Math. (2003) 158:1–113.[CrossRef]
- Hesselholt L., Madsen I. On the de Rham-Witt complex in mixed characteristic. Ann. Sci. École Norm. Sup. (2004) 37:1–43.
- Illusie L. Complexe de de Rham–Witt et cohomologie cristalline. Ann. Sci. École Norm. Sup. (1979) 12(4):501–661.
- Illusie L., Raynaud M. Les suites spectrales associées au complexe de de Rham–Witt. Inst. Hautes Études Sci. Publ. Math. (1983) 57:73–212.[CrossRef]
- Mandell M. A., May J. P. Equivariant orthogonal spectra and S-modules. Mem. Amer. Math. Soc. (2002) 159. Providence, RI: American Mathematical Society.
- Popescu D. General Néron desingularization. Nagoya Math. J. (1985) 100:97–126.
- Rülling K. The generalized de Rham–Witt complex over a field is a complex of zero-cycles. J. Algebr. Geom. (2007) 16:109–169.
- Stienstra J. On the K2 and K3 of truncated polynomial rings. Algebraic K-theory, Evanston, 1980 (1981) New York: Springer. 409–455. Lecture Notes in Mathematics 854.
- Suslin A. A. On the Grayson spectral sequence. Number theory, algebra, and algebraic geometry, Proc. Steklov. Inst. Math. (2003) 241:202–237.
| ||||||||||||||||||||||||||||||||||||||||||||||