Ridiculous expression

I read that a certain university offered an honorary title to a certain mathematician for his

"outstanding scientific research activity and his achievements in a scientific field of mathematics"

This is a translation from the Greek text (the particular phrase appears in yellow here) which itself contains silly grammatical (circled in red) and syntactical errors.

One wonders therefore: the above implicitly implies that the "fields of mathematics" are classified into "scientific" (for which the award was given) and "non-scientific" (for which, presumably, no award will ever be given).

The question is: What are the non-scientific fields of mathematics?