Results 71 to 80 of about 1,727 (183)
Radio Number Associated with Zero Divisor Graph
Mathematics, 2020 Radio antennas use different frequency bands of Electromagnetic (EM) Spectrum for switching signals in the forms of radio waves. Regulatory authorities issue a unique number (unique identifying call sign) to each radio center, that must be used in all ...
Ali N. A. Koam, Ali Ahmad, Azeem Haider
doaj +1 more source
On bipartite zero-divisor graphs
Discrete Mathematics, 2009 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dancheng Lu, Tongsuo Wu
openaire +1 more source
Narrow Windows: Estimating the Household‐Level Opportunity for Roth Conversions
FINANCIAL PLANNING REVIEW, Volume 9, Issue 4, December 2026.ABSTRACT Roth conversions are frequently recommended for near‐retirees, but few households meet the structural conditions that make conversion worthwhile. Using the Survey of Consumer Finances (SCF), this study applies sequential screens—age 55–72, pre‐tax balances ≥$250k$$ \ge \$250\mathrm{k} $$, income headroom, nonaccount liquidity, and ...
Christopher G. Reddick
wiley +1 more source
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
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
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On the additive image of zeroth persistent homology
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract For a category X$X$ and a finite field F$F$, we study the additive image of the functor H0(−;F)∗:rep(X,Top)→rep(X,VectF)$\operatorname{H}_0(-;F)_* \colon \operatorname{rep}(X, \mathbf {Top}) \rightarrow \operatorname{rep}(X, \mathbf {Vect}_F)$, or equivalently, of the free functor rep(X,Set)→rep(X,VectF)$\operatorname{rep}(X, \mathbf {Set ...
Ulrich Bauer +3 more
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Rational points on even‐dimensional Fermat cubics
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract We show that even‐dimensional Fermat cubic hypersurfaces are rational over any field of characteristic not equal to three, by constructing explicit rational parameterizations with polynomials of low degree. As a byproduct of our rationality constructions, we obtain estimates for the number of their rational points over a number field and ...
Alex Massarenti
wiley +1 more source
Nontrivial Massey products on compact Kähler manifolds
Journal of Topology, Volume 19, Issue 4, December 2026.Abstract By a result of Deligne, Griffiths, Morgan, and Sullivan, compact Kähler manifolds are rationally formal. In contrast to this, we show that the pluripotential quasi‐isomorphism type of the bigraded, bidifferential algebra of forms on a compact Kähler manifold generally contains more information than the de Rham cohomology algebra with its real ...
Giovanni Placini +2 more
wiley +1 more source
Suppression of Oscillation and Ghosting in RF‐Spoiled Gradient‐Echo‐Based Dynamic Imaging
Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2177-2187, November 2026.ABSTRACT PurposeThis study aims to address the suppression of oscillation and ghosting appearing in RF‐spoiled gradient‐echo‐based dynamic imaging, which is caused by the pseudo‐steady state (PSS) of magnetization. Theory and MethodsWe extended the concept of the previous RF phase‐cycle‐adapted averaging method to RF‐spoiled gradient‐echo‐based cine ...
Jae‐Youn Keum, Jang‐Yeon Park
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The Szeged Index and Padmakar-Ivan Index on the Zero-Divisor Graph of a Commutative Ring
Contemporary Mathematics and Applications (ConMathA)The zero-divisor graph of a commutative ring is a graph where the vertices represent the zero-divisors of the ring, and two distinct vertices are connected if their product equals zero.
Jinan Ambar +2 more
doaj +1 more source