Results 41 to 50 of about 28,946 (263)
On a combinatorial problem in geometry
Discrete Mathematics, 1975 AbstractDenote by g(n) the cardinality of a minimal subset C of an n × n square array of lattice points which does not contain the vertices of a square with sides parallel to the axes, but which is such that the addition of any new point to C forces the appearance of such a square. It is proved that g(n) < nα for some α < 2.
Harvey L. Abbott, Denis Hanson
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Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
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Combinatorial Estimations on Burnside Type Problems
MathematicsThe Burnside problem, formulated by W. Burnside in 1902, is one of the most well-known and important open questions in the field of Group Theory. Despite significant progress made in the past century towards solving this problem, its complete solution ...
Anton Beletskiy, Ilya Ivanov-Pogodaev
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Performance Comparison of Typical Binary-Integer Encodings in an Ising Machine
IEEE Access, 2021 The differences in performance among binary-integer encodings in an Ising machine, which can solve combinatorial optimization problems, are investigated.
Kensuke Tamura +4 more
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On a problem in combinatorial geometry
Discrete Mathematics, 1983 AbstractLet us fix a number α ...
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A combinatorial approach to the classification problem [PDF]
European Journal of Operational Research, 1999 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yanev, N., Balev, S.
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Molecular Oncology, Volume 20, Issue 6, Page 1429-1452, June 2026.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
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On Large Sum-Free Sets: Revised Bounds and Patterns
MathematicsIn this paper, we rectify two previous results found in the literature. Our work leads to a new upper bound for the largest sum-free subset of [1,n] with the lowest value in n3,n2, and the identification of all patterns that can be used to form sum-free ...
Renato Cordeiro de Amorim
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Bird Mating Optimizer for Combinatorial Optimization Problems
IEEE Access, 2020 The bird mating optimizer is a new metaheuristic algorithm that was originally proposed to solve continuous optimization problems with a very promising performance.
Anas Arram +3 more
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A combinatorial problem in logic
Discrete Mathematics, 1977 AbstractThis short note is an application of some theorems of graph theory to the problem of the minimum number of counter-examples needed to show that a special class of theories is complete.
Claude Berge 0001, A. Ramachandra Rao
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