Results 11 to 20 of about 33,349,805 (332)
GVZ-groups, Flat groups, and CM-Groups [PDF]
Comptes Rendus. Mathématique, 2021 We show that a group is a GVZ-group if and only if it is a flat group. We show that the nilpotence class of a GVZ-group is bounded by the number of distinct degrees of irreducible characters. We also show that certain CM-groups can be characterized as GVZ-groups whose irreducible character values lie in the prime field.
Shawn T. Burkett, Mark L. Lewis
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Group Connectivity and Group Coloring: Small Groups versus Large Groups [PDF]
The Electronic Journal of Combinatorics, 2020 A well-known result of Tutte says that if $\Gamma$ is an Abelian group and $G$ is a graph having a nowhere-zero $\Gamma$-flow, then $G$ has a nowhere-zero $\Gamma'$-flow for each Abelian group $\Gamma'$ whose order is at least the order of $\Gamma$. Jaeger, Linial, Payan, and Tarsi observed that this does not extend to their more general concept of ...
Langhede, Rikke, Thomassen, Carsten
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An Information Flow Model for Conflict and Fission in Small Groups [PDF]
Journal of Anthropological Research, 1977 Data from a voluntary association are used to construct a new formal model for a traditional anthropological problem, fission in small groups. The process leading to fission is viewed as an unequal flow of sentiments and information across the ties in a ...
Konstantin Avrachenkov +2 more
semanticscholar +1 more source
, 1993 These notes correspond rather accurately to the translation of the lectures given at the Fifth Mexican School of Particles and Fields, held in Guanajuato, Gto., in December~1992.
N. Reshetikhin, Theo Johnson-Freyd
semanticscholar +1 more source
From mapping class groups to automorphism groups of free groups [PDF]
, 2005 We show that the natural map from the mapping class groups of surfaces to the automorphism groups of free groups, induces an infinite loop map on the classifying spaces of the stable groups after plus construction.
Wahl, Nathalie
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An enhanced healthcare system in mobile cloud computing environment
Vietnam Journal of Computer Science, 2016 Mobile cloud computing (MCC) is a new technology for mobile web services. Accordingly, we assume that MCC is likely to be of the heart of healthcare transformation. MCC offers new kinds of services and facilities for patients and caregivers.
Jemal Hanen +2 more
doaj +1 more source
Automorphism groups of polycyclic-by-finite groups and arithmetic groups [PDF]
, 2005 We show that the outer automorphism group of a polycyclic-by-finite group is an arithmetic group. This result follows from a detailed structural analysis of the automorphism groups of such groups. We use an extended version of the theory of the algebraic
A. Borel +40 more
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OrthoMCL: identification of ortholog groups for eukaryotic genomes.
Genome Research, 2003 The identification of orthologous groups is useful for genome annotation, studies on gene/protein evolution, comparative genomics, and the identification of taxonomically restricted sequences.
Li Li, C. Stoeckert, D. Roos
semanticscholar +1 more source
Village Seed Production Groups Supported by Network and Capacity Building in Disseminating Modern Varieties in Indonesia [PDF]
BIO Web of Conferences, 2023 Strategic food crops production such as rice, maize and soybean are determined by harvested areas multiplied by productivity, while productivity is affected by availability of highquality seed of modern varieties which is adaptive to both biotic and ...
Wardana I Putu +8 more
doaj +1 more source
Covering Groups of Nonconnected Topological Groups and 2-Groups [PDF]
, 2019 We investigate the universal cover of a topological group that is not necessarily connected. Its existence as a topological group is governed by a Taylor cocycle, an obstruction in 3-cohomology.
Rumynin, Dmitriy +2 more
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