نتایج جستجو برای: αl
تعداد نتایج: 162 فیلتر نتایج به سال:
An almost-direct product of free groups is an iterated semidirect product of finitely generated free groups in which the action of the constituent free groups on the homology of one another is trivial. We determine the structure of the cohomology ring of such a group. This is used to analyze the topological complexity of the associated Eilenberg-Mac Lane space. 1. Almost direct products of free...
Previous papers have proposed to add memory registers to the individual dynamics of discrete-time linear agents to move faster towards average consensus under interactions dictated by a given but unknown graph. They have proved that adding one memory slot per agent allows faster convergence. We here prove that this situation cannot be improved by adding more memory slots. We conclude by discuss...
The structure of the I domain of integrin alpha L beta 2 bound to the Ig superfamily ligand ICAM-1 reveals the open ligand binding conformation and the first example of an integrin-IgSF interface. The I domain Mg2+ directly coordinates Glu-34 of ICAM-1, and a dramatic swing of I domain residue Glu-241 enables a critical salt bridge. Liganded and unliganded structures for both high- and intermed...
Despite the popularity of a completely free beam resting on tensionless foundation in construction industry, existing bending analysis solutions are limited to certain types loads (mostly point and uniformly distributed loads); these also quite complex for practicing engineers handle. To overcome associated complexity, simple iterative procedure is developed this study, which uses Ritz method f...
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