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Showing 1 - 2 results of 2 for search '"necessary and sufficient conditions"', query time: 0.54s Refine Results
  1. 1
    by Nechayev, Andrei
    Published 2012
    “... is proposed. Necessary and sufficient conditions of eruptions are received. For group of Kamchatka geysers a...”
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  2. 2
    by Powers, Victoria, Reznick, Bruce
    Published 2019
    “... gave a necessary and sufficient condition for such a form to have a representation as a sum of squares...”
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