We provide a sufficient condition that ensures the nilpotency of endomorphisms universally of trace zero of Schur-finite objects in a category of homological type, i.e., a -linear -category with a tensor functor to super vector spaces. We present some applications in the category of motives, where our result generalizes previous results about finite-dimensional objects, in particular by Kimura. We also present some facts which suggest that this might be the best generalization possible of this line of proof.
@article{BUMI_2009_9_2_1_37_0,
author = {Alessio Del Padrone and Carlo Mazza},
title = {Schur-Finite Motives and Trace Identities},
journal = {Bollettino dell'Unione Matematica Italiana},
volume = {2},
year = {2009},
pages = {37-44},
zbl = {1179.14020},
mrnumber = {2493643},
language = {en},
url = {http://dml.mathdoc.fr/item/BUMI_2009_9_2_1_37_0}
}
Del Padrone, Alessio; Mazza, Carlo. Schur-Finite Motives and Trace Identities. Bollettino dell'Unione Matematica Italiana, Tome 2 (2009) pp. 37-44. http://gdmltest.u-ga.fr/item/BUMI_2009_9_2_1_37_0/
[AK02] - , Nilpotence, radicaux et structures monoïdales, Rend. Sem. Mat. Univ. Padova, 108 (2002), 107-291. | MR 1956434
[And04] , Une introduction aux motifs (motifs purs, motifs mixtes, périodes), Panoramas et Synthèses [Panoramas and Syntheses], 17, Société Mathématique de France (Paris, 2004). | MR 2115000 | Zbl 1060.14001
[Ber88] , Trace identities and -graded invariants, Trans. Amer. Math. Soc., 309, no. 2 (1988), 581-589. | MR 938917 | Zbl 0706.16015
[Del02] , Catégories tensorielles, Mosc. Math. J., 2, no. 2 (2002), 227-248. | MR 1944506
[DP06] , Schur functors, nilpotency and motives, Phd thesis, Università degli Studi di Genova, Dipartimento di Matematica, 2006 (2006).
[DPM] - , Schur finiteness and nd endomorphisms universally of trace zero via certain trace relations, To appear in Comm. in Alg. | MR 2482807 | Zbl 1171.14005
[DPM05] - , Schur finiteness and nilpotency, C. R. Math. Acad. Sci. Paris, 341, no. 5 (2005), 283-286. | MR 2166140
[FH91] - , Representation theory, Graduate Texts in Mathematics, 129 (1991), xvi+551. | MR 1153249 | Zbl 0744.22001
[GP03] - , Finite-dimensional motives and the conjectures of Beilinson and Murre, K-Theory, 30, no. 3 (2003), 243-263. | MR 2064241 | Zbl 1060.19001
[Jan94] , Motivic sheaves and filtrations on Chow groups, Motives (Seattle, WA, 1991), Proc. Sympos. Pure Math., 55, (1994), 245-302. | MR 1265533 | Zbl 0811.14004
[Jan07] , On finite-dimensional motives and Murre's conjecture, Algebraic Cycles and Motives, London Math. Soc. Lecture Note Ser., 344 (2007), 420-450. | MR 2187152 | Zbl 1127.14007
[JSV96] - - , Traced monoidal categories, Math. Proc. Cambridge Philos. Soc., 119, n0. 3 (1996), 447-468. | MR 1357057 | Zbl 0845.18005
[Kah] , On the multiplicities of a motive, Preprint, February 5, 2007, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0818/.
[Kim05] , Chow groups are finite dimensional, in some sense, Math. Ann., 331, no. 1 (2005), 173-201. | MR 2107443 | Zbl 1067.14006
[Maz04] , Schur functors and motives, K-Theory, 33, no. 2 (2004), 89-106. | MR 2131746
[Sai] , Bloch's Conjecture and Chow Motives, Preprint, February 7, 2000, arXiv, http://arxiv.org/abs/math/0002009v2.