Results 101 to 110 of about 2,160 (213)
Steiner triple systems and strongly regular graphs
, 1969 The Steiner triple systems are characterized in terms of strongly regular graphs provided that the number of cliques exceed ...
Aliev, I.Š.o., Seiden, Esther
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Steiner Triple Systems With High Discrepancy
Journal of Combinatorial DesignsABSTRACT In this paper, we initiate the study of discrepancy questions for combinatorial designs. Specifically, we show that, for every fixed and , any ‐colouring of the triples on admits a Steiner triple system of order with discrepancy .
Lior Gishboliner +2 more
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Population and Development Review, EarlyView.Abstract There are striking disparities in life expectancy across sociodemographic groups in the United States, shaped by structural forces such as racism, class inequality, and policy environments. To what extent do sociodemographic characteristics structure—or fail to structure—individual lifespans? Using U.S.
Casey F. Breen, Nathan Seltzer
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Finite embedding theorems for partial Steiner triple systems
, 1975 Let P be a finite set and (P, 1), (P, 2),…, (P, k) any collection of mutually disjoint partial Steiner triple systems. Then these partial triple systems can be embedded in finite mutually disjoint triple systems (S, 1), (S, 2),…, (S, k).
Charles C. Lindner +3 more
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Plant Breeding, EarlyView.ABSTRACT Enhancing nutritional quality of oilseed rape requires deeper insight into the genetic control of seed quality traits. This study analysed the effect of varying soil phosphorus (P) levels on seed quality traits in the hybrid cultivar Architect. NIRS and laboratory methods were used to quantify total seed P and phytic acid (IP6) content.
Jasmin Vettel +2 more
wiley +1 more source
An orbit theorem for Steiner triple systems
Discrete Mathematics, 1994 The author shows that an automorphism group of a nontrivial (possibly infinite) Steiner triple system has at least as many block-orbits as point-orbits.
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From cognitive coherence to political polarization: A data‐driven agent‐based model of belief change
Political Psychology, EarlyView.Abstract Political polarization represents a rising issue in many countries, making it more and more important to understand its relation to cognitive‐motivational and social influence mechanisms. Yet, the link between micro‐level mechanisms and macro‐level phenomena remains unclear.
Marlene C. L. Batzke +4 more
wiley +1 more source
Configurations and trades in Steiner triple systems
, 2004 The main result of this paper is the determination of all pairwise nonisomorphic trade sets of volume at most 10 which can appear in Steiner triple systems.
Grannell, M.J. +2 more
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Uniform two-class regular partial steiner triple systems
, 2012 A 2-class regular partial Steiner triple system is a partial Steiner triple system whose points can be partitioned into 2-classes such that no triple is contained in either class and any two points belonging to the same class are contained in the same ...
Kreher, Donald L. +2 more
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Women in space: A review of known physiological adaptations and health perspectives
Experimental Physiology, EarlyView.Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford +4 more
wiley +1 more source