This is the 7269th most frequent Russian word.
вольфович
"Вольфович" is a patronymic in Russian, meaning "son of Wolf."
In this sentence, 'Вольфович' is used as a proper noun, likely a surname, denoting a person.
Я встретил господина Вольфовича вчера в театре.
I met Mr. Volfovich yesterday at the theater.
Here, 'Вольфович' again serves as a proper noun, presumably referring to an author recognized by this surname.
Вольфович опубликовал новую статью по физике.
Volfovich published a new article on physics.
In this case, 'Вольфович' is employed in a respectful address, indicating formality and respect attributed to the person in question.