Traditional Notation
Among those who use index notation for tensors, it is common to use the letter R to represent three different things:
- the Riemann curvature tensor: or
- the Ricci tensor:
- the scalar curvature: R
These three are then distinguished from each other by their number of indices: the Riemann tensor has four indices, the Ricci tensor has two indices, and the Ricci scalar has zero indices. Those not using an index notation usually reserve R for the full Riemann curvature tensor.
Read more about this topic: Scalar Curvature
Famous quotes containing the word traditional:
“The greatest impediments to changes in our traditional roles seem to lie not in the visible world of conscious intent, but in the murky realm of the unconscious mind.”
—Augustus Y. Napier (20th century)
Related Phrases
Related Words