I do not have a mathematical background and I often find myself struggling with notations in certain scientific papers etc.
a) Am I right that the observations of a stochastic process can be written as:
$\{x_t\}^n_{t=1}$ ?
b) Can the same notation be applied to a series of variables in general? For example: Could the residuals of a simple linear regression model estimated via OLS be notated as
$\{e_t\}^n_{t=1}$ ?
I am really struggling with all the different notations and I am simply trying to define a personal sort of standard on how to notate different things.
I appreciate any help.