Title: Operads, homotopy algebras and strings Speaker: Brano Jurco, Charles University Abstract: We verify that certain algebras appearing in string field theory are algebras over Feynman transform of modular operads which we describe explicitly. An equivalent description in terms of solutions of generalized BV master equations is explained from the operadic point of view. -- We will take the speaker to lunch after the seminar. please join us. Ruibin