Complete Arcs in Steiner Triple Systems
Journal of Combinatorial Theory, Series A, 1997 A complete arc in a Steiner triple system of order \(v\), \(\text{STS}(v)\), is a set of \(s\) points met by any block in at most two points and such that the 2-secant blocks cover all points outside the arc. The authors determine the spectrum of sizes of complete arcs in Steiner triple systems; namely, they prove the following theorem: If \(v\equiv 1,
Charles J. Colbourn, Jeffrey H. Dinitz
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Automorphism groups of some designs of steiner triple systems and the atomorphism groups of their block intersection graphs [PDF]
, 2014 >Magister Scientiae - MScA Steiner triple system of order v is a collection of subsets of size three from a set of v-elements such that every pair of the elements of the set is contained in exactly one 3-subset.
Vodah, Sunday
core
The relationship between cellular protein content and selenium accumulation in freshwater microalgae
Integrated Environmental Assessment and Management, EarlyView.Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie +3 more
wiley +1 more source
, 2021 Algebras over arbitrary fields whose basis is a Steiner triple system for which ab = ±c for every triple {a; b; c} are considered. Constraints on the triple system imposed by the requirement that the algebra satisfies various identities are ...
Barry Gardner (14737198)
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Industry Portfolio Volatility Connections and Industry Portfolio Returns
International Journal of Finance &Economics, EarlyView.ABSTRACT This paper tracks dynamic connections that form among daily US industry portfolio return volatilities using a Bayesian time‐varying parameter VAR model. Market participants often focus on sectors to filter vast amounts of information, and this focus results in cross‐industry return predictability. We characterise connections that form over the
Michael Ellington +2 more
wiley +1 more source
A Steiner triple system which colours all cubic graphs
, 2004 We prove that there is a Steiner triple system such that every simple cubic graph can have its edges colored by points of in such a way that for each vertex the colors of the three incident edges form a triple in . This result complements the result of
Grannell, Mike +3 more
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Colourings of Uniform Group Divisible Designs and Maximum Packings
Journal of Combinatorial Designs, EarlyView.ABSTRACT A weak c $c$‐colouring of a design is an assignment of colours to its points from a set of c $c$ available colours, such that there are no monochromatic blocks. A colouring of a design is block‐equitable, if for each block, the number of points coloured with any available pair of colours differ by at most one.
Andrea C. Burgess +6 more
wiley +1 more source
Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links
Geophysical Monograph Series, Page 191-228., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman +2 more
wiley +1 more source
The Cyclically Resolvable Steiner Triple Systems of Order 57
MathematicsA resolution of a Steiner triple system of order v (STS(v)) is point-cyclic if it has an automorphism permuting the points in one cycle. An STS(v) is cyclically resolvable if it has at least one point-cyclic resolution. Cyclically resolvable STS(v)s have
Svetlana Topalova, Stela Zhelezova
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Strategic Change, EarlyView.ABSTRACT The increasing prevalence of corporate scandals and dysfunction linked to psychopathic leaders has prompted significant research into the drivers and effects of psychopathy in business. This paper examines corporate psychopathy, focusing on individuals with extreme selfishness, callousness, and manipulative behavior who often achieve ...
Florian Fuchs
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