Abstract We study the birational boundedness of special fibers of log Calabi-Yau fibrations and Fano fibrations. We show that for a locally stable family of Fano varieties or polarised log Calabi-Yau pairs over a curve, if the general fiber satisfies some natural boundedness conditions, then every irreducible component of the special fiber is birationally bounded.About the speaker 焦骏鹏,清华...
Quantum computers are naturally good at simulating unitary quantum systems, yet their potential to solve a broader class of non-quantum dynamical problems involving dissipation or driving remains an open question. We try to answer a core question: w without imposing extra structural assumptions, what are the fundamental boundaries of quantum speed-up?This talk will first examine the general lim...