The earliest Kyiv reliefs with figurative images correlate temples built in the second half of 11th — early 12th centuries. iconography and dating Ovruch pyrophyllite slate secular or indefinite plots has been subject research by more than one generation scholars. have found already damaged reused, so their original placement interior faзade, as well temple palace also remains a matter debate.&...

The iconography of ancient art has to do with making propositions about what that art depicts. Stylistic studies, in contrast, make propositions about the sharedness of formal properties with other objects. These can be done separately. Although many iconographic analyses of ancient art proceed with little or no consideration of style, I argue that the two modes of analysis are interdependent. ...

This short paper presents a necessary condition for Byzantine k-set agreement in (synchronous or asynchronous) message-passing systems and asynchronous shared memory systems where the processes communicate through atomic single-writer multi-reader registers. It gives a proof, which is particularly simple, that k-set agreement cannot be solved t-resiliently in an n-process system when n ≤ 2t + t...