Results 61 to 70 of about 830,410 (239)
Frequency Assignment Model of Zero Divisor Graph
Journal of Applied Mathematics, 2021 Given a frequency assignment network model is a zero divisor graph Γ=V,E of commutative ring Rη, in this model, each node is considered to be a channel and their labelings are said to be the frequencies, which are assigned by the L2,1 and L3,2,1 labeling
R. Radha, N. Mohamed Rilwan
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The Congruence-Based Zero-Divisor Graph [PDF]
, 2015 Let R be a commutative ring with nonzero identity and ~ a multiplicative congruence relation on R. Then, R/~ is a semigroup with multiplication [x][y] = [xy], where [x] is the congruence class of an element x of R.
Lewis, Elizabeth Fowler
core
Wage growth of less educated workers: the importance of social skills
Fiscal Studies, EarlyView.Abstract We use matched employee–employer data from the UK to investigate the importance of social skills – in particular, teamwork and communication with co‐workers – as a driver of wage growth for workers with lower formal education. We find that in social skill tasks, a significant fraction of less educated workers enjoy wage progression with tenure,
Philippe Aghion +3 more
wiley +1 more source
Journal of Systematics and Evolution, EarlyView.We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes +6 more
wiley +1 more source
On Short‐Term Behavior of Implied Volatility for Index Options
Mathematical Finance, EarlyView.ABSTRACT This paper investigates short‐term behavior of implied volatility of derivatives written on a market index when the index is constructed using a ranking procedure. Even when stock prices follow geometric Brownian motion dynamics, the ranking mechanism can lead to the observed term structure of at‐the‐money (ATM) implied volatility skew for ...
Huy N. Chau, Duy Nguyen, Thai Nguyen
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Oat–Sesbania Rotation Boosts Oat Yield and Profit via Soil Nutrient Buildup and Dual Harvest
Modern Agriculture, Volume 4, Issue 2, December 2026.Under the oat–Sesbania rotation system, soil nutrient accumulation serves as a key driver of increased oat yield and quality, with benefits tending to intensify over successive rotational years. Green manure incorporation of Sesbania promotes soil and crop improvement, whereas forage harvesting of Sesbania attains comparable agronomic outcomes while ...
Yongjie Zhang +12 more
wiley +1 more source
Group Action on the Set of Nonunits in Rings
Journal of Mathematics, 2023 Let R be a ring, G be the group of all units of R, and X=R−G∪0. In this paper, we investigate avxx∈X=oxx∈X for a ring R, where avx is the set of all vertices of the zero-divisor graph of R adjacent to x.
Eman S. Almotairi +2 more
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From Caesar to RSA: A CAMMP‐Based Encryption Workshop for High‐School Classes
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT Encryption has been, and remains, a topic of enduring relevance, reflecting humanity's persistent desire for secure communication. This 3‐hour workshop, developed within the CAMMP framework, aims to introduce participants to the principles of secure communication while fostering mathematical understanding at an appropriate pace for the target ...
Alicia Heck, Benjamin Stamm
wiley +1 more source
Adjacency spectra and Laplacian integrality of zero divisor graphs over some rings
Kuwait Journal of ScienceLet 𝑅 be a commutative ring and let 𝑍∗ (𝑅) denote the set of non-zero zero divisors of 𝑅. The zero divisor graph 𝛤(𝑅) is defined as the simple graph with vertex set 𝑍∗ (𝑅), where two distinct vertices 𝑥, 𝑦 ∈ 𝑍∗ (𝑅) are adjacent if and only if 𝑥𝑦 = 0.
Bilal Ahmad Rather +3 more
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A characterization of singular endomorphisms of a barrelled Pták space
International Journal of Mathematics and Mathematical Sciences, 1982 The concept of topological divisor of zero has been extended to endomorphisms of a locally convex topological vector space (LCTVS). A characterization of singular endomorphisms, similar to that of Yood [1], is obtained for endomorphisms of a barrelled ...
Damir Franekić
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