»ã±¨±êÌâ (Title)£ºSuitable binary compositions and transformations on spheres£¨ÇòÉÏÏàÒ˵ĶþÔª×éºÏºÍ±ä»»£©

»ã±¨ÈË (Speaker)£º¹úÆð ½ÌÊÚ£¨ËÕÖݿƼ¼´óѧ£©

»ã±¨¹¦·ò (Time)£º2023Äê11ÔÂ9ÈÕ(ÖÜËÄ) 10:00

»ã±¨µØÖ· (Place)£ºÐ£±¾²¿GJ406

Ô¼ÇëÈË(Inviter)£ºÏ¯¶«ÃË¡¢Àî½ú¡¢Õŵ¿­

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»ã±¨ÌáÒª£ºIn this talk, we introduce first some practical pointwise or set-wise binary compositions and suitable transformations on spheres, and then, in terms of these binary compositions and transformations, we study the combinatoric and structural properties of spherically convex sets. The basic properties of spherically convex functions, such as the Lipschitz continuity and the criterions of convexity of spherically convex functions will also be discussed.