Results 11 to 20 of about 27,019,645 (348)

GVZ-groups, Flat groups, and CM-Groups [PDF]

open access: yesComptes 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
openaire   +4 more sources

Group Connectivity and Group Coloring: Small Groups versus Large Groups [PDF]

open access: yesThe 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
openaire   +3 more sources

The complex-type cyclic-Fibonacci sequence and its applications [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
In the present paper, we aim to generalize the notion of complex-type Fibonacci sequences to complex-type cyclic Fibonacci sequences. Firstly, we define the complex-type cyclic-Fibonacci sequence and then we give miscellaneous  properties of this ...
Ömür Deveci   +2 more
doaj   +1 more source

Rings and groups with commuting powers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
Let n be a fixed positive integer. Let R be a ring with identity which satisfies (i) xnyn=ynxn for all x,y in R, and (ii) for x,y in R, there exists a positive integer k=k(x,y) depending on x and y such that xkyk=ykxkand (n,k)=1.
Hazar Abu-Khuzam, Adil Yaqub
doaj   +1 more source

Contrast Effect of Facial Attractiveness in Groups

open access: yesFrontiers in Psychology, 2020
Research on facial attractiveness is an important part of aesthetics. Most relevant studies in the area have focused on the influence of individual perspectives on facial attractiveness, but it is necessary to consider the effect of contextual ...
Yatian Lei   +6 more
doaj   +1 more source

A Taxonomy for the Social Agents of Scientific Change

open access: yesScientonomy, 2017
Although we accept that a scientific mosaic is a set of theories and methods accepted and employed by a scientific community, scientific community currently lacks a proper definition in scientonomy.
Nicholas Overgaard
doaj   +1 more source

For stage II node positive breast cancer, Is it worthwhile to consider adjuvant radiotherapy following mastectomy?:

open access: yesFrontiers in Oncology, 2014
Purpose:To evaluate overall survival(OS), progression free survival(PFS), loco-regional recurrence(LRR), and toxicities for early breast cancer patients with 1-3positive axillary lymph nodes, by the addition of radiotherapy to adjuvant chemotherapy ...
Mohammed A M Osman   +2 more
doaj   +1 more source

Test groups for Whitehead groups

open access: yesRocky Mountain Journal of Mathematics, 2012
We consider the question of when the dual of a Whitehead group is a test group for Whitehead groups. This turns out to be equivalent to the question of when the tensor product of two Whitehead groups is Whitehead. We investigate what happens in different models of set theory.
Eklof, Paul C.   +2 more
openaire   +3 more sources

Pawning and challenging in concert: Engagement as a field of study [PDF]

open access: yesFilozofija i Društvo, 2016
An introduction of sorts, this text opens the thematic collection of articles on engagement. It takes up the idea that a particular group of people engage the idea of engagement in order to establish a field of study.
Zaharijević Adriana
doaj   +1 more source

Inverse Properties in Neutrosophic Triplet Loop and Their Application to Cryptography

open access: yesAlgorithms, 2018
This paper is the first study of the neutrosophic triplet loop (NTL) which was originally introduced by Floretin Smarandache. NTL originated from the neutrosophic triplet set X: a collection of triplets ( x , n e u t ( x ) , a n t i ( x ) ) for ...
Temitope Gbolahan Jaiyeola   +1 more
doaj   +1 more source

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