Results 11 to 20 of about 124,825 (308)

CONTINUOUS ASSOCIATION SCHEMES AND HYPERGROUPS [PDF]

Journal of the Australian Mathematical Society, 2018
Classical finite association schemes lead to finite-dimensional algebras which are generated by finitely many stochastic matrices. Moreover, there exist associated finite hypergroups. The notion of classical discrete association schemes can be easily extended to the possibly infinite case. Moreover, this notion can be relaxed slightly by using suitably
Voit, Michael
openaire   +5 more sources

CRESTED PRODUCTS OF ASSOCIATION SCHEMES [PDF]

Journal of the London Mathematical Society, 2005
Given a partition \(F\) of \(\Omega\), denote by \(R_F\) the \(\Omega\times \Omega\) relaion matrix for \(F\), that is, \(R_F(\alpha,\beta)=1\), if \(\alpha\) and \(\beta\) are in the same part of \(F\), while \(R_F(\alpha,\beta)=0\) otherwise. A partition is uniform, if all its parts have the same size. Partitions of \(\Omega\) are partially supported
Bailey, R. A., Cameron, Peter J.
core   +3 more sources

Association schemes of quadratic forms

Journal of Combinatorial Theory, Series A, 1985
The author studies a new class of association schemes attached to quadratic forms. These schemes are distance regular (but generally not distance transitive), in terms of graph theory.
Egawa, Yoshimi
openaire   +2 more sources

Generalized Imperfect D2D Associations in Spectrum-Shared Cellular Networks Under Transmit Power and Interference Constraints

IEEE Access, 2020
This paper studies imperfect underlay device-to-device (D2D) association in spectrum-shared cellular networks. It addresses important system and design interference constraints, processing load limitations and transmit power constraints at D2D terminals.
Redha M. Radaydeh, Fawaz S. Al-Qahtani, Abdulkadir Celik, Khalid A. Qaraqe, Mohamed-Slim Alouini   +4 more
doaj   +1 more source

Is the evidence on the effectiveness of pay for performance schemes in healthcare changing? Evidence from a meta-regression analysis

BMC Health Services Research, 2021
Background This study investigated if the evidence on the success of the Pay for Performance (P4P) schemes in healthcare is changing as the schemes continue to evolve by updating a previous systematic review.
Arezou Zaresani, Anthony Scott
doaj   +1 more source

On pseudocyclic association schemes

Ars Mathematica Contemporanea, 2011
23 pages, 7 ...
Mikhail E. Muzychuk, Ilia N. Ponomarenko
openaire   +3 more sources

Independent Sets In Association Schemes [PDF]

Combinatorica, 2006
15 pages; This is the corrected version that will appear in ...
Chris D. Godsil, Michael W. Newman
openaire   +2 more sources

Water Productivity, Farmers Satisfaction, and Sustainability of Selected Small Scale Irrigation Schemes in Salale Zone, Ethiopia

Turkish Journal of Agriculture: Food Science and Technology, 2022
In order to assess the potential, farmers satisfaction, and operation and maintenance issues of selected small scale irrigation schemes in Salale Zone Ethiopia, the study was designed with key objectives of evaluating the current status of irrigation ...
Habtamu Adenew Ulatu, Tolossa Lemma Tola, Shewadinber Mekonnin Meskelu   +2 more
doaj   +1 more source

An Empirical Study on User-Oriented Association Analysis of Library Classification Schemes [PDF]

Journal of Library and Information Studies, 2002
Library classification schemes are mostly organized based on disciplines with a hierarchical structure. From the user point of view, some highly related yet non-hierarchical classes may not be easy to perceive in these schemes.
Hsiao-Tieh Pu
doaj   +1 more source

Quotients of association schemes

Journal of Combinatorial Theory, Series A, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chris D. Godsil, William J. Martin
openaire   +2 more sources