In the article analyzed is the history and current research state of book culture in Ukraine. Defined is the scope of the necessary sources for research and the meaning of key terms, which are crucial in this publication. The research outlines a range of issues related ...

Deformations of topological open string theories are described, with an emphasis on their algebraic structure. They are encoded in the mixed bulk-boundary correlators. They constitute the Hochschild complex of the open string algebra -- the complex of multilinear maps o...

In the article reconstructed is the history of creation and use of hand-written Ecclesiastical Statute from Krekhiv (near Lviv) St. Nicolas Basilian monastery, made in the first third of the 17th century. Codicological description of the manuscript is conducted; its str...

Bibliographical sources in Agathangel Krymsky’s (1871-1942) research heritage are analyzed in the article. During the whole life, Agathangel Krymsky systematically and thoroughly compiled his bibliography, as the scholar considered it to be a constituent part of any res...