Eighteenth Conference "APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES" June 27- July 2, 2026, Albena, BULGARIA E-mail: conference@eac4amitans.eu Gender: Surname: First name: Second name: Country: Fax: E-mail: Hotel preferred: (Flamingo Grand - BB, Lagunas Complex (Sandy Beach, Laguna Garden, Laguna Mare), Oasis, Complex Orhidea) Type of room requested (single, double): Share with: Payment method preferred: (bank transfer to DSK EXPRESSBANK, IBAN BG31STSA93001506048789 - EUR, SWIFT: STSABGSF; via credit card). The payment must be complete before arrival and accommodation (up to June 10, 2026). Invoice data: (optional) Arrival date: Departure date: