Results 1 to 10 of about 1,281,875 (285)
GVZ-groups, Flat groups, and CM-Groups [PDF]
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]
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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Effective pre-control methods for construction workers during the construction phase are important means to ensure the final quality of the construction product.
Yujie Mei +4 more
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Food Myths or Food Facts? Study about Perceptions and Knowledge in a Portuguese Sample
Food myths are nutritional concepts poorly justified or even contradict existing scientific evidence that individuals take as the truth. Knowledge in nutrition is an important tool in tackling misinformation and in the promotion of adequate food choices.
Sofia G. Florença +3 more
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A snapshot of ABO, RH, and JK blood group systems in modern Ireland
Objectives This study aimed to capture a snapshot of the Irish population to determine if there had been any changes in the ABO and RH blood group system (BGS) distribution from previous Irish studies and to establish an Irish JK BGS frequency, providing
Anne Browne +4 more
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Analysis of approaches to assessing living standards of population
Relevance. The need to significantly improve living standards of population in the regions of the Russian Federation. This task is defined in a number of strategic development documents at the federal level and has been repeatedly outlined in the studies
R.V. Fattakhov, P.V. Stroev
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Depression in adolescence: a review
Background Depression is a common mental health disease, especially in mid to late adolescence that, due to its particularities, is a challenge and requires an effective diagnosis.
Diogo Beirão +5 more
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Grouping approaches of nanomaterials have the potential to facilitate high throughput and cost effective nanomaterial screening. However, an effective grouping of nanomaterials hinges on the application of suitable physicochemical descriptors to identify
Catherine Carnovale +9 more
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South African teachers work with division actions in Grade 3
Background: Internationally, the teaching of division has noted that the use of sharing situations with sharing actions (one-by-one distribution) is the predominant division model at the beginning of schooling.
Corin D. Mathews
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Contrast enhancement of images is a crucial topic in image processing that improves the quality of images. The methods of image enhancement are classified into three types, including the histogram method, the fuzzy logic method, and the optimal method ...
Nguyen Tu Trung +2 more
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