Shrinkage estimation of the linear model with spatial interaction
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DOI: 10.1007/s00184-016-0590-z
Abstract: The linear model with spatial interaction has attracted huge attention in the past several decades. Different from most existing research which focuses on its estimation, we study its variable selection problem using the adaptive lasso.… read more here.
Keywords: linear model; spatial interaction; estimation; model ... See more keywords
General cosmography model with spatial curvature
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DOI: 10.1093/mnras/stz3308
Abstract: We adopt a cosmographic approach in order to determine spatial curvature (i.e. Ω_K), combining the latest release of cosmic chronometer (CC) data, the Pantheon sample of Type Ia supernovae observations and baryon acoustic oscillation measurements.… read more here.
Keywords: general cosmography; cosmography model; model spatial; spatial curvature ... See more keywords
Global Behavior of a Multi–Group Seir Epidemic Model with Spatial Diffusion in a Heterogeneous Environment
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DOI: 10.34768/amcs-2022-0020
Abstract: Abstract In this paper, we propose a multi-group SEIR epidemic model with spatial diffusion, where the model parameters are spatially heterogeneous. The positivity and ultimate boundedness of the solution, as well as the existence of… read more here.
Keywords: group seir; model spatial; epidemic model; seir epidemic ... See more keywords