Results 61 to 70 of about 99,508 (238)
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
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Modern thematic preparation for EIA in mathematics in Ukraine: coordinates and vectors, elements of combinatorics and stochastics [PDF]
, 2020 Oleksandr Shkolnyi, Yurii Zakhariichenko
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Completing Partial k‐Star Designs
Journal of Combinatorial Designs, Volume 33, Issue 12, Page 446-455, December 2025.ABSTRACT A k‐star is a complete bipartite graph K 1 , k. A partial k‐star design of order n is a pair ( V , A ) where V is a set of n vertices and A is a set of edge‐disjoint k‐stars whose vertex sets are subsets of V. If each edge of the complete graph with vertex set V is in some star in A, then ( V , A ) is a (complete) k‐star design.
Ajani De Vas Gunasekara, Daniel Horsley
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Journal of Combinatorial Designs, Volume 33, Issue 12, Page 456-470, December 2025.ABSTRACT A family ℱ of subsets of [ n ] = { 1 , 2 , … , n } shatters a set A ⊆ [ n ] if for every A ′ ⊆ A, there is an F ∈ ℱ such that F ∩ A = A '. We develop a framework to analyze f ( n , k , d ), the maximum possible number of subsets of [ n ] of size d that can be shattered by a family of size k.
Noga Alon +2 more
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Journal of Graph Theory, Volume 110, Issue 4, Page 448-456, December 2025.ABSTRACT A dominating K t‐model in a graph G is a sequence ( T 1 , … , T t ) of pairwise disjoint non‐empty connected subgraphs of G, such that for 1 ⩽ i < j ⩽ t every vertex in T j has a neighbour in T i. Replacing ‘every vertex in T j’ by ‘some vertex in T j’ retrieves the standard definition of K t‐model, which is equivalent to K t being a minor of ...
Freddie Illingworth, David R. Wood
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INTERNATIONAL JOURNAL OF MATHEMATICAL COMBINATORICS, vol. 1 / 2018
, 2018 The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 110-160 pages approx. per volume, which publishes original research papers and survey articles in all aspects of Smarandache multi-spaces, Smarandache ...
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T. P. McDonough and V. C. Mavron (editors), Combinatorics (London Mathematical Society Lecture Note Series No. 13, Cambridge University Press, 1974), v + 204 pp., £3·20. [PDF]
, 1977 Donald Monk
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Mirror symmetry, Laurent inversion, and the classification of Q$\mathbb {Q}$‐Fano threefolds
Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.Abstract We describe recent progress in a program to understand the classification of three‐dimensional Fano varieties with Q$\mathbb {Q}$‐factorial terminal singularities using mirror symmetry. As part of this we give an improved and more conceptual understanding of Laurent inversion, a technique that sometimes allows one to construct a Fano variety X$
Tom Coates +2 more
wiley +1 more source
7‐Location, weak systolicity, and isoperimetry
Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.Abstract m$m$‐Location is a local combinatorial condition for flag simplicial complexes introduced by Osajda. Osajda showed that simply connected 8‐located locally 5‐large complexes are hyperbolic. We treat the nonpositive curvature case of 7‐located locally 5‐large complexes.
Nima Hoda, Ioana‐Claudia Lazăr
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