Results 11 to 20 of about 353,477 (268)
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 ...
Rikke Langhede, Carsten Thomassen
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Learning in a Group, as a Group, and between Groups [PDF]
CBE—Life Sciences Education, 2019 Learning in groups is a common feature of science classrooms. The three articles I have chosen to feature in this installment of Current Insights reflect recent research of group learning at different scales. The first examines within-group dynamics, identifying interactions among students that allow scientific sense-making discussions to begin and ...
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To group or not to group? Group sizes for requirements elicitation
Information and Software Technology, 2023 Context: Requirement elicitation can be done by individuals or by groups. Computer-based system development life-cycle models suggest having people working together for many steps. Also, recommendations about analysis and design methods indicate that some processes could take advantage of group work.
Mich, Luisa +2 more
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Specific Gestalt principles cannot explain (un)crowding
Frontiers in Computer Science, 2023 The standard physiological model has serious problems accounting for many aspects of vision, particularly when stimulus configurations become slightly more complex than the ones classically used, e.g., configurations of Gabors rather than only one or a ...
Oh-Hyeon Choung +5 more
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South African Journal of Childhood Education, 2020 Background: In the foundation phase, division is split along the lines of grouping (quotition) and sharing (partition). Curriculum and Assessment Policy Statements (CAPS) recommends that representations such as drawings, concrete apparatus, and symbols ...
Valerie Ramsingh
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Repères, 2023 We are conducting collaborative research which aims to co-construct, with primary school teachers, teaching and classroom management practices supporting interaction between students in reflective oral contexts.
Kathleen Sénéchal +2 more
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The Fundamental Group of a Group Manifold [PDF]
Proceedings of the National Academy of Sciences, 1934 The study of the interrelations between group structures and topological structures is one of the interesting recent developments of group theory. It has become well known that a space @ which is at the same time a continuous group cannot be of arbitrary topological structure.
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Journal of Computing and Information Technology, 2016 In recent years, materialized views (MVs) are widely used to enhance the database performance by storing pre-calculated results of resource-intensive queries in the physical memory.
Kateryna Novokhatska, Oleksii Kungurtsev
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Lightness Contrast Spatially Propagates on Perceptually Unified Elements
Gestalt Theory, 2022 In 1993, Agostini and Proffitt showed that perceptual belongingness (the subsumption of some sets of elements into a perceived whole) causes simultaneous lightness contrast to be seen in configurations in which the inducing elements are not adjacent to ...
Galmonte Alessandra +4 more
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