Results 91 to 100 of about 12,536 (262)

Minkowski’s inequality and sums of squares

open access: yesOpen Mathematics, 2014
Frenkel Péter, Horváth Péter
doaj   +1 more source

Permutation properties of the Fibonacci polynomials

open access: yes四川大学学报. 自然科学版, 2020
The permutation polynomials has wide and important applications in the fields of algebra, combinatorics, number theory, coding theory, cryptography, and so on.
Wang Zhi-Jian
doaj  

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Theory of Algebraic Numbers

open access: yesThe American Mathematical Monthly, 2006
D. J. Lewis, Harry Pollard
openaire   +3 more sources

Quantum B-algebras

open access: yesOpen Mathematics, 2013
Rump Wolfgang
doaj   +1 more source

How to reduce sampling error in species population monitoring: from theory to methods

open access: yesEcography, EarlyView.
Progress towards national and international targets to halt and reverse declines in species' abundances will be assessed using multispecies indicators (MSIs). A distinction must be drawn between two MSIs. One is the ideal, but unobserved, MSI that would have been measured had all species and sites within the scope of the target been sampled.
Robin J. Boyd   +5 more
wiley   +1 more source

Kinematic Hopf algebra for amplitudes from higher-derivative operators

open access: yesJournal of High Energy Physics
Recently it has been shown that Bern-Carrasco-Johansson (BCJ) numerators of colour-kinematic duality for tree-level scattering amplitudes in Yang-Mills theory (coupled with scalars) can be determined using a quasi-shuffle Hopf algebra.
Gang Chen, Laurentiu Rodina, Congkao Wen
doaj   +1 more source

Latitudinal effect on the structure of snake–prey interaction networks is mediated by snake species richness

open access: yesEcography, EarlyView.
Despite the growing number of studies on trophic networks in recent decades, there are still important gaps in our understanding of how these networks are structured across broad environmental gradients. These gaps are even greater in some groups of terrestrial vertebrates, such as snakes, requiring a cohesive synthesis of their broader trophic ...
Daniela Pinto‐Coelho   +4 more
wiley   +1 more source

Machine Learning Unveils Isolated‐Surrounded Pt Motifs in High‐Entropy Alloys for Superior Low‐Temperature Ammonia Oxidation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A physics‐informed machine learning approach successfully decodes the complex catalytic activity of high‐entropy alloys for ammonia oxidation. By revealing a synergistic mechanism involving lattice and electronic couplings, the study identifies a superior “isolated‐surrounded” platinum motif.
Shangfeng Jiang   +5 more
wiley   +1 more source

How Multiple Streams Influence Agenda‐Setting for Water Reuse in Swiss Substates

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT As climate change creates significant challenges for both the environment and society, potential mitigation and adaptation solutions are widely discussed. Yet, neither challenges nor their potential solutions automatically reach the political agenda or lead to a policy decision.
Magdalena A. Knabl   +4 more
wiley   +1 more source

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