Generalized Covariant Derivative with Respect to Time in Flat Space(Ⅱ):Lagrangian Description-中国期刊网

摘要 ThepreviouspaperreportedanewderivativeintheEuleriandescriptioninflatspace—thegeneralizedcovariantderivativeofgeneralizedEuleriancomponentwithrespecttotime.ThispaperextendsthethoughtfromtheEuleriandescriptiontotheLagrangiandescription:onthebasisofthepostulateofcovariantforminvariabilityintimefield,wedefineanewderivativeintheLagrangiandescriptioninflatspace—thegeneralizedcovariantderivativeofgeneralizedLagrangiancomponentwithrespecttotime.Besides,thecovariantdifferentialtransformationgroupissetup.ThecovariantforminvariabilityofLagrangianspace-timeisascertained.

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Generalized Covariant Derivative with Respect to Time in Flat Space(Ⅱ):Lagrangian Description

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Generalized Covariant Derivative with Respect to Time in Flat Space(Ⅱ):Lagrangian Description

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