Results 71 to 80 of about 328 (209)

Efficiency, Shadow Pricing and Regime Switching in Multi‐Ware Technologies: Evidence From Regulated Livestock Farms

Journal of Agricultural Economics, EarlyView.
ABSTRACT We develop a framework for regulated production systems where output generation and pollution abatement impose competing technological demands. Using a multi‐ware technology, we model the production set as the intersection of two input requirement frontiers, one for production and one for abatement, each reflecting distinct trade‐offs.
Youpei Yan, Robert G. Chambers
wiley   +1 more source

Trivialité des groupes de Whitehead réduits avec applications à l’approximation faible et l’approximation forte

Comptes Rendus. Mathématique
We prove some triviality results for reduced Whitehead groups and reduced unitary Whitehead groups for division algebras over a Henselian discrete valuation field whose residue field has virtual cohomological dimension or separable dimension $\le 2 ...
Hu, Yong, Tian, Yisheng
doaj   +1 more source

On vector states and separable 𝐶*-algebras [PDF]

Proceedings of the American Mathematical Society, 1977
It is proved that the set of states on a separable C ∗
openaire   +2 more sources

The effect of nearby listings on house sale prices in Sydney: A spatio‐temporal regularization approach

Real Estate Economics, EarlyView.
Abstract We estimate the price impact of very nearby concurrently listed properties in the Sydney housing market and assess their competition effects. We apply a hedonic model with spatiotemporal effects regularized via a graph Laplacian prior at the month‐by‐SA2 regional level to seven SA4 subregions of metropolitan Sydney. The model structure enables
Willem P. Sijp, Mengheng Li
wiley   +1 more source

New estimation methods for diagnostic classification models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract This paper introduces a new class of estimators for cognitive diagnosis models (CDMs) based on the Cressie–Read family of ϕ$$ \phi $$‐divergences. Focusing on the loglinear CDM (LCDM), for which joint maximum likelihood estimation (JMLE) has been shown to be consistent, we propose a joint minimum divergence estimation (JMDE) framework.
Elena Castilla
wiley   +1 more source

Receptor kinetics: Binding flux‐based approaches offer complementary insight into how ligand binding evolves with time

British Journal of Pharmacology, EarlyView.
Background and Purpose Binding kinetics are essentially based on rate constants. Yet, this view has been challenged by the idea that ‘binding fluxes’ are dynamic and therefore more relevant. Those fluxes refer to the rate at which a target/receptor changes from one state into another through ligand/drug binding or a conformational change.
Georges Vauquelin, Terry Kenakin, Dominique Maes   +2 more
wiley   +1 more source

Hierarchical Optimization of the As‐Rigid‐As‐Possible Energy

Computer Graphics Forum, EarlyView.
Abstract The As‐Rigid‐As‐Possible (ARAP) energy [SA07] has become a versatile ingredient in various geometry processing and machine learning methods. The classic method for its minimization is a block coordinate descent, alternating between local rotation estimation and a global linear solve, which converges slowly for large problem instances.
Hendrik Meyer, Bernd Bickel, Marc Alexa
wiley   +1 more source

Current state and prospects of research in thermoelasticity

Современная математика: Фундаментальные направления
A review of recent works on thermoelasticity is provided. It is recommended to use the boundary state method (BSM) for constructing numerical-analytical solutions of problems by means of computing systems supporting “computer algebras”. The structures of
L. V. Levina, V. B. Pen’kov, M. A. Lavrentieva   +2 more
doaj   +1 more source

Class Angular Distortion Index for Dimensionality Reduction

Computer Graphics Forum, EarlyView.
Abstract Dimensionality reduction (DR) techniques are often characterized by whether they preserve global, high‐level structures in the data or local, neighborhood structures. This distinction matters in visualization: global methods can obscure clusters while local methods can over‐emphasize them.
Kaviru Gunaratne, Stephen Kobourov, Jacob Miller   +2 more
wiley   +1 more source

On simplicity of Cuntz algebras and its applications [PDF]

Surveys in Mathematics and its Applications
Cuntz algebra 𝒪2 is the universal C*-algebra generated by two isometries s1, s2 satisfying s1s1*+s2s2*=1. This is separable, simple, infinite C*-algebra containing a copy of any nuclear C*-algebra.
Massoud Amini, Mahdi Moosazadeh
doaj