报告题目1：2-limited dominating broadcast on cubic graphs without induced 4-cycles

报告人：Boram Park教授，韩国亚洲大学

报告时间：2023年8月4日，10:00-11:00

报告地点：腾讯会议，442-627-668

报告题目2：Defective coloring graphs on surfaces: exact results and beyond

报告人：Ilkyoo Choi博士, 韩国外国语大学

报告时间：2023年8月4日，11:00-12:00

报告地点：腾讯会议，442-627-668

摘要：For nonnegative integers $k, d_1, \ldots, d_k$, a graph is $(d_1, \ldots, d_k)$-colorable if its vertex set can be partitioned into $k$ parts so that the $i$th part induces a graph with maximum degree at most $d_i$ for all $i\in\{1, \ldots, k\}$.We survey some results on defective coloring, especially for graphs on surfaces.Several types of results will be discussed, including exact results for planar graphs, asymptotic results for graphs on surfaces, and cycle obstruction sets.

邀请人：朱绪鼎