Lesson plan
Four-gradient
In differential geometry, the four-gradient (or 4-gradient) \boldsymbol{\partial} is the four-vector analogue of the gradient \vec{\boldsymbol{\nabla}} from vector calculus. In special relativity and in quantum mechanics, the four-gradient is used to define the properties and relations between the various physical four-vectors and tensors.
Article summary
In differential geometry, the four-gradient (or 4-gradient) \boldsymbol{\partial} is the four-vector analogue of the gradient \vec{\boldsymbol{\nabla}} from vector calculus. In special relativity and in quantum mechanics, the four-gradient is used to define the properties and relations between the various physical four-vectors and tensors.
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Discussion questions
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