| 1. | In the corresponding tensor index notation, the above matrix expression is
|
| 2. | If is any four-vector, then in tensor index notation
|
| 3. | Applying the multi-index notation the Taylor series for several variables becomes
|
| 4. | In abstract index notation, the EFE reads as follows:
|
| 5. | The function, matrix, and index notations all mean the same thing.
|
| 6. | All tensors are written in abstract index notation.
|
| 7. | Index notation allows one to display permutations in a way compatible with tensor analysis:
|
| 8. | These are expressed in index notation as:
|
| 9. | Order the monomials in the variables multi-index notation for monomials in the variables.
|
| 10. | Penrose would also introduce abstract index notation.
|
मोबाइल