On Sat, Nov 08, 2025 at 05:25:16AM -0800, Alan Grayson wrote: > In some treatments of tensors, they're described as linear maps. So, in GR, if > we have a linear map described as a 4x4 matrix of real numbers, which operates > on a 4-vector described as a column matrix with entries (ct, x, y, z), which > transforms to another 4-vector, what must be added in this description to > claim > that the linear transformation satisfies the definition of a tensor? TY, AG
The operation of matrix multiplication is linear over the vectors on the right hand side. Is that what you're missing? -- ---------------------------------------------------------------------------- Dr Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders [email protected] http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/aRbIqsK85r51i2sb%40zen.
