Results 21 to 30 of about 6,720,998 (191)

Focus groups: From collecting data to critical pedagogical practice [PDF]

open access: yesZbornik Instituta za pedagoška istraživanja, 2007
This paper presents the positivist and constructivist theory and practice of focus groups. We pointed out to the paradigmatic differences in notional attributes of focus groups, as well as to the historic circumstances of their appearance.
Pavlović Jelena, Džinović Vladimir
doaj   +1 more source

Patient choice in the NHS: How critical are facilities services in influencing patient choice? [PDF]

open access: yes, 2006
Purpose – From December 2005, patients in the UK needing an operation will be offered a choice of four or five. These could be NHS trusts, foundation trusts, treatment centres, private hospitals or practitioners with a special interest operating within ...
May, D., Miller, L.
core   +1 more source

Arithmetical structures on bidents

open access: yes, 2020
An arithmetical structure on a finite, connected graph $G$ is a pair of vectors $(\mathbf{d}, \mathbf{r})$ with positive integer entries for which $(\operatorname{diag}(\mathbf{d}) - A)\mathbf{r} = \mathbf{0}$, where $A$ is the adjacency matrix of $G ...
Archer, Kassie   +5 more
core   +1 more source

A note on the Dancer–Fučík spectra of the fractional p-Laplacian and Laplacian operators

open access: yesAdvances in Nonlinear Analysis, 2015
We study the Dancer–Fučík spectrum of the fractional p-Laplacian operator. We construct an unbounded sequence of decreasing curves in the spectrum using a suitable minimax scheme. For p = 2, we present a very accurate local analysis.
Perera Kanishka   +2 more
doaj   +1 more source

Nonlinear nonhomogeneous Neumann eigenvalue problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We consider a nonlinear parametric Neumann problem driven by a nonhomogeneous differential operator with a reaction which is $(p-1)$-superlinear near $\pm\infty$ and exhibits concave terms near zero.
Pasquale Candito   +2 more
doaj   +1 more source

Critical groups of group representations

open access: yesLinear Algebra and its Applications, 2016
8 ...
openaire   +2 more sources

A Remark on Critical Groups [PDF]

open access: yesJournal of the Australian Mathematical Society, 1969
Problem 24 of Hanna Neumann's book [3] reads: Does there exist, for a given integer n > 0, a Cross variety that is generated by its k-generator groups and contains (k+n)-generator critical groups? In such a variety, is every critical group that needs more than k generators a factor of a k-generator critical group, or at least of the free group of ...
openaire   +1 more source

Critical groups of iterated cones [PDF]

open access: yesLinear Algebra and its Applications, 2019
Let G be a finite graph, and let G_n be the n-th iterated cone over G. We study the structure of the critical group of G_n arising in divisor and sandpile theory.
Goel, Gopal, Perkinson, David
openaire   +3 more sources

Critical Groups and Partitions of Finite Groups

open access: yesMediterranean Journal of Mathematics
We define a class of finite groups based on the properties of the closed twins of their power graphs and study the structure of those groups. As a byproduct, we obtain results about finite groups admitting a partition by cyclic subgroups.
Daniela Bubboloni, Nicolas Pinzauti
openaire   +2 more sources

Smith and Critical groups of Polar Graphs

open access: yes, 2018
We compute the elementary divisors of the adjacency and Laplacian matrices of families of polar graphs. These graphs have as vertices the isotropic one-dimensional subspaces of finite vector spaces with respect to non-degenerate forms, with adjacency ...
Pantangi, Venkata Raghu Tej, Sin, Peter
core   +1 more source

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