In this paper,we study steady Ricci solitons with a linear decay of sectional curvature.In particular,we give a complete......

利用聚焦离子束(focused ion beam,FIB)刻蚀方法在120 nm厚的金膜上制备了实验测量样品。再用实验的方法测量了在可见光波段及近红......