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Algebraic Connectivity Maximizing Regular Graphs: Special Case Analysis and Depth‐First Search

open access: yesConcurrency and Computation: Practice and Experience, Volume 37, Issue 27-28, 25 December 2025.
ABSTRACT The algebraic connectivity is an indicator of how well connected a graph is. It also characterizes the convergence speed of some dynamic processes over networks. In this paper, taking into account that homogeneous networks are modeled as regular graphs, we tackle the following problem: given a pair (n,k)$$ \left(n,k\right) $$ of positive ...
Masashi Kurahashi   +3 more
wiley   +1 more source

CAAF-ResUNet: Adaptive Attention Fusion with Boundary-Aware Loss for Lung Nodule Segmentation. [PDF]

open access: yesMedicina (Kaunas)
Pham TQ   +8 more
europepmc   +1 more source

Including Pre‐Existing Fractures in Phase Field Fracture Models

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT The phase field method for fracture modelling has, in recent years, become the method of choice for complex fracture problems, especially those involving branching, merging, or nucleating fractures. As the number of applications of the phase field method has expanded, the importance of assessing its accuracy has increased. One important factor
Bradley Sims   +3 more
wiley   +1 more source

Side‐on Coordination in Fluorido Difluoroamido Complexes FMNF2 of Heavy Alkaline Earth Metals (M = Ca, Sr, Ba)

open access: yesChemistry – A European Journal, Volume 31, Issue 69, December 9, 2025.
Fluorido difluoroamido complexes F'MNF2 of heavy alkaline earth metals (M = Ca, Sr, Ba) were prepared through the reactions of laser‐ablated metal atoms with NF3 and isolated under cryogenic conditions in neon and argon matrices. The species feature a F'−− and a side‐on coordinated η3‐NF2− ligand with the F'−M−N angle decreasing from calcium to barium.
Xiya Xia, Robert Medel, Sebastian Riedel
wiley   +1 more source

A p-Laplacian Random Walk: Application to Video Games

open access: diamond, 2019
Nicolas Wicker   +2 more
openalex   +2 more sources

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