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Some Constructions of Steiner Triple Systems of Type v⟶2v + 1 + 6k
MathematicsA Steiner Triple System (STS) of order v is a hypergraph Σ=(X,B) that is uniform of rank 3 and has order v, such that every 2-subset of X has degree 1.
Leonardo Fragapane, Mario Gionfriddo
doaj +1 more source
Rigid Steiner triple systems obtained from projective triple systems
, 2014 It was shown by Babai in 1980 that almost all Steiner triple systems are rigid; that is, their only automorphism is the identity permutation. Those Steiner triple systems with the largest automorphism groups are the projective systems of orders $2^n-1 ...
M. Knor +3 more
core +1 more source
Sparse Steiner triple systems of order 21
, 2021 A (Formula presented.) -configuration is a set of (Formula presented.) blocks on (Formula presented.) points. For Steiner triple systems, (Formula presented.) -configurations are of particular interest.
Kokkala, Janne I. +4 more
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The Nexus Between Circular Economy and Sustainable Supply Chain Management: PRISMA Methodology
Sustainable Development, EarlyView.ABSTRACT The intersection of sustainable supply chain management (SSCM) and circular economy (CE) has attracted increasing academic and practical attention, emphasizing the need for integrated sustainability approaches. This study employs the PRISMA protocol and conceptualizes the CE–SSCM relationship as a dynamic system in which internal capabilities,
Feriel Barkaoui, Khaled Ben abdallah
wiley +1 more source
The Embedding Problem of Any Steiner Triple Systems Into Kite-Designs
Journal of MathematicsA G-design V,B is called embedded into an H-design V∪W,C if G is a subgraph of H and there is an injective mapping f:B⟶C such that B is a subgraph of fB for every B∈B.
Yufeng Gao
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Sustainable Development, EarlyView.ABSTRACT ‘Hard’ natural sciences have extensively been used to provide evidence that climate change is happening and climate action is needed. If the contribution of our economic activities to disturbing our climate systems is now largely accepted, the way in which we design and operationalise ‘climate action’—how we transition to more sustainable ...
Sandrine Simon
wiley +1 more source
On Steiner and Similar Triple Systems.
MATHEMATICA SCANDINAVICA, 1969 Given a finite set \(S\), a Steiner triple system over \(S\) is a system of triples of elements of \(S\) such that each pair of distinct elements is contained in just one triple. By extending a method of Skolem the author gives a simple direct construction in all cases.
openaire +3 more sources
, 1979 A regular planar Steiner triple system is a Steiner triple system provided with a family of non-trivial sub-systems of the same cardinality (called planes) such that (i) every set of 3 non collinear points is contained in exactly one plane and (ii) for ...
Dehon, Michel
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Journal of Accounting Research, EarlyView.ABSTRACT This study examines the spillover effect of bank financial misconduct on the uninsured deposits of peer banks within local markets. We first validate that misconduct banks experience an increase in deposit spreads and a corresponding outflow of deposits following the misconduct. We then show local peer banks exhibit divergent deposit responses,
Ya Kang, Yupeng Lin, Yang Qiu
wiley +1 more source
Continuity of Mendelsohn and Steiner triple systems
, 1995 By adopting a functional viewpoint of Mendelsohn and Steiner triple systems, questions of continuity are investigated. The main result is that at most one section of a Steiner triple system defined on the real line can be continuous. Applying the concept
Phelan, J.S. +2 more
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