The paper by means of O. Bogopolski and A. Vikentiev describes a few quite useful?niteindexsubgroupsoftheautomorphismgroupofa?nitelygeneratedfree crew. one in every of their makes use of will be to assault the matter at the Kazhdan estate (T) for those teams. The paper of A. Juhasz encompasses a answer of the di?cult club challenge in a subclass of one-relator teams. Papers of F. Matucci, D. Savchuk and R. Zarzycki will allure the eye of these who need to know extra approximately teams of adjustments of the unit period [0,1], specifically in regards to the well-known Thompson's crew F and its restrict homes. The paper through A.J. Duncan, V. Dieckert and A.G. Myasnikov includes a very thoroughsurveyonrewritingsystemswithnewissuesonin?niterewritingsystems. The paper through L. Frenkel, A.G. Myasnikov and V.N. Remeslennikov is dedicated to theproblemofhowto measuresomesubsets infreegroupsbyusingrandomwalks. the result of this paper can be used for designing algorithms that run speedy on just about all inputs. This paper in addition to the paper by means of M. Hock and B. Tsaban are hugely instructed to experts in cryptography. eventually, the paper through D. Goncalves and P. Wong is dedicated to the twisted conjugacy in 2-dimensional crystallographic teams. we're very thankful to the firms that supported those meetings: * TheconferenceinDortmundwasorganizedbyO.Bogopolski,M.-T.Bochnig, G.Rosenberger,V.Shpilrainand E.Ventura.Thisconferencewas?nancially supported by way of DAAD (Deutscher Akademischer Austauschdienst), by means of DFG (Deutsche Forschungsgemeinschaft), and by means of the Universit. at Dortmund. The URL tackle for its homepage is http://www.mathematik.uni-dortmund.de/?gcgta/.
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