Research output: Contribution to journal › Article › peer-review
Dilations of contraction cocycles and cocycle perturbations of the translation group of the line. / Amosov, G. G.; Baranov, A. D.
In: Mathematical Notes, Vol. 79, No. 1-2, 01.01.2006, p. 3-17.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Dilations of contraction cocycles and cocycle perturbations of the translation group of the line
AU - Amosov, G. G.
AU - Baranov, A. D.
PY - 2006/1/1
Y1 - 2006/1/1
N2 - The class of contraction cocycles which can be dilated to unitary Markovian cocycles of a translation group S on the straight line is introduced. The class of cocycle perturbations of S by unitary Markovian cocycles W with the property W t -I ε S 2 (the Hubert-Schmidt class) is investigated. The results are applied to perturbations of Kolmogorov flows on hyperfinite factors generated by the algebra of canonical anticommutation relations.
AB - The class of contraction cocycles which can be dilated to unitary Markovian cocycles of a translation group S on the straight line is introduced. The class of cocycle perturbations of S by unitary Markovian cocycles W with the property W t -I ε S 2 (the Hubert-Schmidt class) is investigated. The results are applied to perturbations of Kolmogorov flows on hyperfinite factors generated by the algebra of canonical anticommutation relations.
KW - Cocycle perturbation
KW - Contraction cocycle
KW - Dilation of a contraction cocycle
KW - Perturbations of Kolmogorov flows
KW - Translation group on the line
KW - Unitary markovian cocycle
UR - http://www.scopus.com/inward/record.url?scp=31844446635&partnerID=8YFLogxK
U2 - 10.1007/s11006-006-0001-2
DO - 10.1007/s11006-006-0001-2
M3 - Article
AN - SCOPUS:31844446635
VL - 79
SP - 3
EP - 17
JO - Mathematical Notes
JF - Mathematical Notes
SN - 0001-4346
IS - 1-2
ER -
ID: 62180410