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The free energy of an ecosystem:towards a measure of its inner value
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作者 Gerardo M.E.Perillo Mariana I.Zilio +1 位作者 Fernando Tohme M.Cintia Piccolo 《Anthropocene Coasts》 2024年第1期49-58,共10页
ed from any human valuation.The ecosystem services approach has become the dominant criterion for studying human and natural rela-tionships,but this and similar approaches concentrate on the human advantage giving lit... ed from any human valuation.The ecosystem services approach has become the dominant criterion for studying human and natural rela-tionships,but this and similar approaches concentrate on the human advantage giving little or no regard for the well-being of the ecosystem.Although there is concern about preserving and recuperating damaged ecosystems,we seldom consider how much the ecosystem values itself.Then,we propose that Inner Value could be a tool to evalu-ate and model ecosystems’health before any anthropic disturbance,allowing comparison with the impact these disturbances may have in the future.We also suggest that it should be a requirement for any Environmental Impact Assessment. 展开更多
关键词 Ecosystem inner value Ecological networks Ecosystem services Free energy
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Vector-valued operators, optimal weighted estimates and the C_p condition
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作者 María Eugenia Cejas Kangwei Li +1 位作者 Carlos Pérez Israel Pablo Rivera-Ríos 《Science China Mathematics》 SCIE CSCD 2020年第7期1339-1368,共30页
In this paper some new results concerning the C_p classes introduced by Muckenhoupt(1981)and later extended by Sawyer(1983),are provided.In particular,we extend the result to the full expected range p>0,to the weak... In this paper some new results concerning the C_p classes introduced by Muckenhoupt(1981)and later extended by Sawyer(1983),are provided.In particular,we extend the result to the full expected range p>0,to the weak norm,to other operators and to their vector-valued extensions.Some of those results rely upon sparse domination,which in the vector-valued case are provided as well.We will also provide sharp weighted estimates for vector-valued extensions relying on those sparse domination results. 展开更多
关键词 A_p weights quantitative estimates C_p estimates vector-valued extensions sparse domination maximal functions Calderon-Zygmund operators COMMUTATORS
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