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Chapter and Conference Paper
An Action of the Picard Group on Generalized Euler Classes
In this paper, we construct an action of Picard group on the generalized Euler classes defined in Chow-Witt groups $$\widetilde{CH^{d}(X,\mathscr {L})...
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Chapter and Conference Paper
A Monitoring and Management System for Farmland Environmental Base on Flex and Web Services
Farmland environmental deterioration is the main reason which results in the agricultural product quality problems, so it is necessary to build a geospatial information system for farmland environmental monito...