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In the mathematical theory of partial differential equations, a Monge equation, named after Gaspard Monge, is a first-order partial differential equation for an unknown function ''u'' in the independent variables ''x''1,...,''x''''n'' : that is a polynomial in the partial derivatives of ''u''. Any Monge equation has a Monge cone. Classically, putting ''u'' = ''x''0, a Monge equation of degree ''k'' is written in the form : and expresses a relation between the differentials ''dx''''k''. The Monge cone at a given point (''x''0, ..., ''x''''n'') is the zero locus of the equation in the tangent space at the point. The Monge equation is unrelated to the (second-order) Monge–Ampère equation. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Monge equation」の詳細全文を読む スポンサード リンク
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