Results 81 to 90 of about 2,896 (167)
Universality for Graphs of Bounded Degeneracy
Random Structures &Algorithms, Volume 68, Issue 2, March 2026.ABSTRACT Given a family ℋ$$ \mathscr{H} $$ of graphs, a graph G$$ G $$ is called ℋ$$ \mathscr{H} $$‐universal if G$$ G $$ contains every graph of ℋ$$ \mathscr{H} $$ as a subgraph. Following the extensive research on universal graphs of small size for bounded‐degree graphs, Alon asked what is the minimum number of edges that a graph must have to be ...
Peter Allen +2 more
wiley +1 more source
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 3, March 2026.Abstract In this study, a comprehensive analytical framework is developed to investigate the free vibration behavior of double‐walled carbon nanotubes (DWCNTs) resting on an elastic foundation, based on Eringen's nonlocal elasticity theory. The DWCNTs are modeled as two coupled Euler–Bernoulli (EB) beams, explicitly incorporating intertube van der ...
Ayşegül Tepe
wiley +1 more source
Earth and Space Science, Volume 13, Issue 3, March 2026.Abstract Three‐dimensional gravity forward modeling with conventional numerical methods requires solving large‐scale linear system using direct matrix inversion or iterative solvers, incurring substantial computational costs that critically limit large‐scale three‐dimensional inversions.
Xiaozhong Tong +3 more
wiley +1 more source
Topographic Scattering of Internal Waves in the Presence of a Steady Surface Current
Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.Abstract Wave–topography interaction is one of the primary mechanisms through which internal wave energy cascades to small length scales, eventually leading to turbulent diffusion and mixing in the oceans. Precise diffusivity parametrizations are crucial for modeling oceanic flows accurately.
Saranraj Gururaj, Anirban Guha
wiley +1 more source
From simplex slicing to sharp reverse Hölder inequalities
Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.Abstract Simplex slicing (Webb, 1996) is a sharp upper bound on the volume of central hyperplane sections of the regular simplex. We extend this to sharp bounds in the probabilistic framework of negative moments, and beyond, of centred log‐concave random variables, establishing a curious phase transition of the extremising distribution for new sharp ...
James Melbourne +3 more
wiley +1 more source
Discrete and Continuous Models and Applied Computational ScienceEarlier we developed a stable fast numerical algorithm for solving ordinary differential equations of the first order. The method based on the Chebyshev collocation allows solving both initial value problems and problems with a fixed condition at an ...
Konstantin P. Lovetskiy +3 more
doaj +1 more source
Using Chebyshev’s polynomials for solving Fredholm integral equations of the second kind
Mathematical Modelling and AnalysisThe main problem with the Newton method is the computation of the inverse of the first derivative of the operator involved at each iteration step. Thus, when we want to apply the Newton method directly to solve an integral equation, the existence of the
José Antonio Ezquerro +1 more
doaj +1 more source
Applied SciencesMassive multiple input–multiple output (M-MIMO) is a promising and pivotal technology in contemporary wireless communication systems that can effectively enhance link reliability and data throughput, especially in uplink scenarios. Even so, the receiving
Yung-Ping Tu, Guan-Hong Liu
doaj +1 more source
3D inversion of magnetic gradient data based on equivalent source weighting method
AIP Advances3D magnetic inversion is an important method for detecting underwater or underground magnetic objects, which can obtain the physical parameters and geometric features of the target.
Shuanglong Huang +4 more
doaj +1 more source