This is the 12363rd most frequent Russian word.
каноническим
"Каноническим" means "canonical" or "in accordance with established rules or standards."
The word "каноническим" here is used to mean "canonical," referring to something established as a standard or model in a specific field, in this case, mathematics.
Это решение можно считать каноническим в математике.
This solution can be considered canonical in mathematics.
"Каноническим" in this sentence refers to adhering to established rules, norms, or models of formulating theories or principles.
Каноническим образом он сформулировал основные принципы теории.
In a canonical way, he formulated the main principles of the theory.
Here, "каноническим" is used to describe an approach considered exemplary or standard-setting within a professional community.