On October 29, 2024 (Tuesday), at 2:00 pm in Room 503 of IMI-BAS, within the Operations Research, Probability and Statistics Seminar, a preliminary defense will be held of the dissertation of Tsvetelin Zaevski on: Utility-based approach for pricing American-style derivatives for awarding of the degree “Doctor of Science”. Everybody is invited. The dissertation can be found at the Library of IMI-BAS.