Hi,

reading this link galilean spacetime a doubt raised to me: which is the difference (if any) between ##\mathbf E^1\times\mathbf E^3## and ##\mathbf E^4## ?

I believe each space there (spaces involved in the cartesian product too) has to be regarded as equipped with standard Euclidean structure

reading this link galilean spacetime a doubt raised to me: which is the difference (if any) between ##\mathbf E^1\times\mathbf E^3## and ##\mathbf E^4## ?

I believe each space there (spaces involved in the cartesian product too) has to be regarded as equipped with standard Euclidean structure

Last edited: