Concept of genre in Y. Tynyanov's articles “Literary fact” and “On literary evolution”

The author attempts to reveal Y. Tynyanov’s views on the problem of genre expressed in his theoretical studies of 1920s. Particular attention is paid to the term dynamics, as well as to the principle of genres’ shift, which is investigated on the example of a poem, a story, a short story. Besides, the author studies the size of a literary work considering it a sign of genre.