Ordered covering arrays and upper bounds on covering codes
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Combinatorial Designs"
DOI: 10.1002/jcd.21882
Abstract: This work shows several direct and recursive constructions of ordered covering arrays (OCAs) using projection, fusion, column augmentation, derivation, concatenation, and Cartesian product. Upper bounds on covering codes in Niederreiter–Rosenbloom–Tsfasman (shorten by NRT) spaces are… read more here.
Keywords: upper bounds; ordered covering; bounds covering; covering codes ... See more keywords
Upper bounds on the chromatic number of triangle-free graphs with a forbidden subtree
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Combinatorial Optimization"
DOI: 10.1007/s10878-015-9929-z
Abstract: Gyárfás conjectured that for a given forest F, there exists an integer function f(F, x) such that $$\chi (G)\le f(F,\omega (G))$$χ(G)≤f(F,ω(G)) for each F-free graph G, where $$\omega (G)$$ω(G) is the clique number of G. The… read more here.
Keywords: triangle free; free graph; upper bounds; free free ... See more keywords
Some Upper Bounds for the Net Laplacian Index of a Signed Graph
Sign Up to like & getrecommendations! Published in 2021 at "Bulletin of the Iranian Mathematical Society"
DOI: 10.1007/s41980-020-00514-2
Abstract: The net Laplacian matrix $$N_{\dot{G}}$$ N G ˙ of a signed graph $$\dot{G}$$ G ˙ is defined as $$N_{\dot{G}}=D_{\dot{G}}^{\pm }-A_{\dot{G}}$$ N G ˙ = D G ˙ ± - A G ˙ , where $$D_{\dot{G}}^{\pm… read more here.
Keywords: upper bounds; dot dot; net laplacian; bounds net ... See more keywords
Anisotropic eigenvalues upper bounds for hypersurfaces in weighted Euclidean spaces
Sign Up to like & getrecommendations! Published in 2021 at "Differential Geometry and Its Applications"
DOI: 10.1016/j.difgeo.2020.101696
Abstract: Abstract We prove anisotropic Reilly-type upper bounds for divergence-type operators on hypersurfaces of the Euclidean space in presence of a weighted measure. read more here.
Keywords: eigenvalues upper; hypersurfaces weighted; anisotropic eigenvalues; upper bounds ... See more keywords
Upper bounds for strictly concave distortion risk measures on moment spaces
Sign Up to like & getrecommendations! Published in 2018 at "Insurance: Mathematics and Economics"
DOI: 10.1016/j.insmatheco.2018.07.002
Abstract: The study of worst-case scenarios for risk measures (e.g., Value-at-Risk) when the underlying risk (or portfolio of risks) is not completely specified is a central topic in the literature on robust risk measurement. In this… read more here.
Keywords: moment; risk; upper bounds; bounds strictly ... See more keywords
Sour mixed-gas upper bounds of glassy polymeric membranes
Sign Up to like & getrecommendations! Published in 2021 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2021.119535
Abstract: Abstract Polymeric membranes prepared from glassy polymers suffer from a permeability-selectivity trade-off relationship. When their permeability is increased, their selectivity decreases, and vice versa. The performance of membranes during pure-gas permeation is assessed by plotting… read more here.
Keywords: gas upper; sour mixed; polymeric membranes; upper bounds ... See more keywords
Upper bounds on the genus of hyperelliptic Albanese fibrations
Sign Up to like & getrecommendations! Published in 2024 at "Forum of Mathematics, Sigma"
DOI: 10.1017/fms.2025.43
Abstract: Abstract Let S be a minimal irregular surface of general type, whose Albanese map induces a hyperelliptic fibration $f:\,S \to B$ of genus g. We prove a quadratic upper bound on the genus g (i.e.,… read more here.
Keywords: albanese fibrations; bounds genus; genus hyperelliptic; hyperelliptic albanese ... See more keywords
Tightening energetic bounds on linear gyrokinetic instabilities
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377825100767
Abstract: Bounding energetic growth of gyrokinetic instabilities is a complementary approach to linear instability analyses involving normal eigenmodes. Previous work has focused on upper bounds which are valid linearly and nonlinearly. However, if an upper bound… read more here.
Keywords: tightening energetic; linear instability; energetic bounds; growth ... See more keywords
SYMBOLIC ANALYTIC SPREAD: UPPER BOUNDS AND APPLICATIONS
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Institute of Mathematics of Jussieu"
DOI: 10.1017/s147474802000016x
Abstract: Abstract The symbolic analytic spread of an ideal $I$ is defined in terms of the rate of growth of the minimal number of generators of its symbolic powers. In this article, we find upper bounds… read more here.
Keywords: upper bounds; spread upper; bounds applications; symbolic analytic ... See more keywords
Phenanthrene: establishing lower and upper bounds to the binding energy of a very weakly bound anion
Sign Up to like & getrecommendations! Published in 2022 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d1cp04755h
Abstract: Quite a few molecules do not form stable anions that survive the time needed for their detection; their electron affinities (EA) are either very small or negative. How does one measure the EA if the… read more here.
Keywords: upper bounds; lower upper; energy; phenanthrene establishing ... See more keywords
Upper bounds on transport exponents for long-range operators
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Mathematical Physics"
DOI: 10.1063/5.0054834
Abstract: We present a simple method, not based on the transfer matrices, to prove vanishing of dynamical transport exponents. The method is applied to long range quasiperiodic operators. read more here.
Keywords: exponents long; transport exponents; upper bounds; long range ... See more keywords