The Kronecker delta tensor is an invariant tensor, meaning its components remain unchanged regardless of the coordinate system chosen. While the basis vectors themselves rotate, scale, and shear, the values of the tensor components you see on the screen——do not change. This is a fundamental property that distinguishes tensors from simple vectors or matrices.
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$\complement\cdots$Counselor
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the invariance of the Kronecker delta tensor under various coordinate transformations
the invariance of the Kronecker delta tensor under various coordinate transformations
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$\gg$The Outer Product and Tensor Transformations
$\ggg$Mathematical Structures Underlying Physical Laws
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