Results 71 to 80 of about 2,362 (196)
Defects in weighted graphs and commutators
Journal of AlgebraLet $R$ be a commutative ring. In \cite{KK_2025(1)}, the authors introduced $R$-weighted graphs as a tool for studying commutators in groups and Lie algebras. These graphs are equivalent to a system of balance equations, and their consistent labelings correspond to solutions of this system of balance equations.
Harish Kishnani, Amit Kulshrestha
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Reindustrialization meets rural reality: The limits of foreign direct investment‐led development
Contemporary Economic Policy, EarlyView.Abstract As industrial policy drives new waves of foreign direct investment (FDI) into the U.S., rural areas are becoming key destinations. Using synthetic control, difference‐in‐differences, and propensity score matching, I examine whether rural FDI translates job growth into higher incomes.
Kara Jones
wiley +1 more source
Electronic Journal of Graph Theory and ApplicationsLet G be a finite non-abelian group. The centralizer graph of G is a simple undirected graph Γcent(G), whose vertices are the proper centralizers of G and two vertices are adjacent if and only if their cardinalities are identical.
Jharna Kalita, Somnath Paul
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The Economic History Review, EarlyView.Abstract The 1430s were characterized by extreme weather conditions, food and fodder shortages, and high mortalities among animals and humans, although the severity of events and their consequences in England have received limited attention. The economic downturn and the depressed customary land market in this decade marked the beginning of the Great ...
Mark Bailey
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LAPLACIAN SPECTRUM AND ENERGY OF NON-COMMUTING GRAPHS OF FINITE RINGS [PDF]
Journal of Algebraic SystemsWe compute spectrum, energy, Laplacian spectrum/ energy and signless Laplacian spectrum/energy of non-commuting graphs of certain finite non-commutative rings. In particular, we consider finite rings $R$ such that $|R| = p^2, p^3, p^4$, $p^5$, $p^2q$ and
Monalisha Sharma, Rajat Nath
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Bias Adjustment for Mean Squared Error Estimation in M‐Quantile Models for Small Area Estimation
International Statistical Review, EarlyView.Summary M‐quantile (MQ) regression provides a robust and flexible alternative to mixed models for small area estimation. However, several theoretical aspects remain underexplored. In this paper, a parametric bootstrap method is proposed to approximate the distributions of area‐specific MQ coefficients and applied to adjust the bias in the mean squared ...
María Bugallo +3 more
wiley +1 more source
Urban ScienceIntra-urban commuting plays a fundamental role in shaping urban spatial structure and daily mobility patterns. Existing studies have largely explained commuting flows using attribute-based or distance-centred approaches.
Jianjun Yang, Gula Tang
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Two bounds on the noncommuting graph
Open Mathematics, 2015 Erdős introduced the noncommuting graph in order to study the number of commuting elements in a finite group. Despite the use of combinatorial ideas, his methods involved several techniques of classical analysis.
Nardulli Stefano, Russo Francesco G.
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The evolution of the commuting network in Germany: Spatial and connectivity patterns
Journal of Transport and Land Use, 2010 The analysis of the structure and evolution of complex networks has recently received considerable attention. Although research on networks originated in mathematical studies dating back to the nineteenth century (or earlier), and developed further in ...
Roberto Patuelli +3 more
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The association between 24‐hr movement patterns and self‐harm incidence in adolescence
Journal of Child Psychology and Psychiatry, EarlyView.Background Self‐harm is a pressing public health issue, particularly among adolescents. Physical activity is associated with reduced self‐harm among youths, but evidence is limited. Most studies rely on self‐reported measures and are primarily focused on moderate‐to‐vigorous physical activity (MVPA), often overlooking the role of light‐intensity ...
Siyi Huang +6 more
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