Results 21 to 30 of about 1,804,356 (287)
Turán and Ramsey problems for alternating multilinear maps
Discrete Analysis, 2023 Turán and Ramsey problems for alternating multilinear maps, Discrete Analysis 2023:12, 22 pp. Ramsey's theorem (in its finite version) states that for every positive integer $k$ there exists a positive integer $n$ such that every graph with $n$ vertices
Youming Qiao
doaj +1 more source
Identifying long cycles in finite alternating and symmetric groups acting on subsets [PDF]
, 2015 Let H be a permutation group on a set Λ, which is permutationally isomorphic to a finite alternating or symmetric group An or Sn acting on the k-element subsets of points from {1, . . . , n}, for some arbitrary but fixed k.
Praeger, Cheryl E. +3 more
core +1 more source
Classifying unavoidable Tverberg partitions
Journal of Computational Geometry, 2017 Let $T(d,r) = (r-1)(d+1)+1$ be the parameter in Tverberg's theorem, and call a partition $\mathcal I$ of $\{1,2,\ldots,T(d,r)\}$ into $r$ parts a Tverberg type.
Boris Bukh, Po-Shen Loh, Gabriel Nivasch
doaj +1 more source
Asian Pacific Journal of Tropical Medicine, 2019 Objective: To delineate reliable morphological characteristics for identifying and separating female Phlebotomus caucasicus and Phlebotomus mongolensis which exist sympatrically in the main foci of zoonotic cutaneous leishmaniasis in Iran.
Azad Absavaran +7 more
doaj +1 more source
Analysis of two groups of plane infantry targets as sets of geometric primitives / Анализ двух групп плоских стрелковых мишеней как совокупностей геометрических примитивов / Analiza dve grupe dvodimenzionalnih pešadijskih meta kao skupova osnovnih geometrijskih figura [PDF]
Vojnotehnički Glasnik, 2019 A comparison of two groups of plane shooting targets (PSTs) characterizing the shooter-silhouette in different observation and rifle-firing positions was the starting point for this study.
Vadim L. Khaikov
doaj +1 more source
Quantum soundness of testing tensor codes
Discrete Analysis, 2022 Quantum soundness of testing tensor codes, Discrete Analysis 2022:17, 73 pp. This paper proves an essential component of a major recent result in complexity theory, known as the MIP*=RE theorem, which was proved by the same authors.
Zhengfeng Ji +4 more
doaj +1 more source
On the intimate structure of crystals. Part VI. —Titanic oxide, its polymorphs and isomorphs [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1908 Abstract The key to crystalline structure is furnished by a study of molecular volumes, and one of the best criteria of its powers will be found in its application to polymorphous compounds. If it can explain consistently with our knowledge of crystalline symmetry the change in volume which accompanies the passage of a substance from ...
openaire +1 more source
Isomorphic inverse problems [PDF]
, 2023 Consider two inverse problems for Sturm-Liouville problems on the unit interval. It means that there are two corresponding mappings $F, f$ from a Hilbert space of potentials $H$ into their spectral data. They are called isomorphic if $F$ is a composition
Korotyaev, Evgeny
core +1 more source
Hypergraphs with infinitely many extremal constructions
Discrete Analysis, 2023 Hypergraphs with infinitely many extremal constructions, Discrete Analysis 2023:18, 34 pp. A fundamental result in extremal graph theory, Turán's theorem, states that the maximal number of edges of a graph with $n$ vertices that does not contain a ...
Jianfeng Hou +4 more
doaj +1 more source
Angewandte Chemie, EarlyView.A multi‐stimuli‐responsive material is designed that responds to light, heat, and mechanical force through distinct chemical reaction pathways. The pathway is directed by self‐assembly and the applied stimulus. A novel pericyclic reaction cascade is also achieved, and the mechanism is supported through density functional theory calculations.
Liulei Ma +4 more
wiley +2 more sources