نتایج جستجو برای: groups 0
تعداد نتایج: 1255372 فیلتر نتایج به سال:
Abstract Mahan Mitra (Mj) proved Cannon–Thurston maps exist for normal hyperbolic subgroups of a group (Mitra in Topology, 37(3):527–538, 1998). We prove that do not infinite non-hyperbolic $${{\,\textrm{CAT}\,}}(0)$$ CAT ( 0 ) </mml...
We study abstract group actions of locally compact Hausdorff groups on CAT(0) spaces. Under mild assumptions the action we show that it is continuous or has a global fixed point. This mirrors results by Dudley and Morris–Nickolas for trees. As consequence obtain geometric proof fact any homomorphism from into torsion-free continuous.
the thesis has been arranged into five chapters and mainly concerned with the baer-invariant of groups which is the generalization of the schur-multiplier with respect to the variety of groups. chapter one is devoted to collect some notation and background information which are needed in the next chapters. its also contains some important statements which will be generalized in this thesis. cha...
thin films of binary bi 0 -teo and bi 0 -v 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. the optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a perkin-elmer uv/vis spectrophotometer. it is found that the value of n=3/2 in the davis-mott equation is best fitted for the fundamental absorption edge for the...
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