
张闫博
职称/职务:副教授
来校时间:
E-mail:ybzhang@163.com
研究领域:图论、Ramsey理论、极值组合
个人简介:
张闫博,河北师范大学kaiyun体育网页登录入口副教授,硕士研究生导师。西北工业大学本科,南京大学硕博连读,荷兰特文特大学联合培养,波兰密茨凯维奇大学访问学者。研究方向为图论和Ramsey理论,主持国家自然科学基金青年基金一项,参与两项。在JCTB等期刊发表论文三十多篇。目前担任中国运筹学会图论组合分会青年理事,中国工业与应用数学学会图论组合及应用专业委员会委员。
最新信息见个人主页:ybzhang0.github.io
详细介绍:
学习经历:
2002.09-2006.06,西北工业大学,理学学士
2009.09-2016.06,南京大学,硕博连读
2013.09-2015.03,荷兰特文特大学,联合培养
2020.01-2020.11,波兰密茨凯维奇大学,访问学者
主讲课程:
《高等代数》、《图论》、《概率方法》、《Ramsey理论》等。
部分荣誉:
2016年度长三角地区运筹学与控制论学术论坛优秀论文一等奖
2017年度河北省高等学校青年教师数学教学竞赛特等奖
2018年度河北师范大学校级先进工作者
2018年第26期顶岗支教优秀驻县教师
2016-2017学年河北师范大学本科教学质量优秀奖
2018-2019学年河北师范大学本科教学质量优秀奖
2021-2022学年河北师范大学本科教学质量优秀奖
2022-2023学年河北师范大学本科教学质量优秀奖
2023-2024学年河北师范大学本科教学质量优秀奖
2025年度河北师范大学校级优秀党员
2026年论文:
1. Ramseygoodness of fans,
with Yaojun Chen, Discrete Mathematics, 349(2)(2026), Art. no. 114771.
2. On tree-wheelRamsey numbers,
with Yaojun Chen and Yunqing Zhang, DiscreteApplied Mathematics, 383 (2026), 80–84.
3. Ramseynumbers of trees versus generalized wheels,
with Yaojun Chen and Yunqing Zhang, DiscreteMathematics, 349(4) (2026), Art. no. 114938.
4. Star-critical Ramseynumbers of cycles revisited,
with Yang Sun,Discussiones Mathematicae Graph Theory, 46(1) (2026), 225–235.
5. Ramseynumbers of cycles versus multiple odd wheels,
with Zhaofa Wang, Bulletin of the AustralianMathematical Society, published online.
6. Ramseynumbers of generalized fans versus multiple cliques,
with Ze Wang, Applied Mathematics and Computation, 522 (2026) ,Art. no. 129985.
7. Ramseynumbers of small wheels versus fans,
with Haiyu Zeng and Feng Zhao, Bulletin of theMalaysian Mathematical Sciences Society, 49(1) (2026), Art. no. 1.
8. The invertedweak Schur numbers,
with Haiyu Zeng and Yuehua Zeng, DiscreteMathematics, Algorithms and Applications, 18(1) (2026), Art. no. 2550024.
2025年论文:
1. OnlineRamsey numbers of K1,3 versus paths,
with Ruyu Song and Sha Wang, Discrete AppliedMathematics, 377 (2025), 218–224.
2. Ramseygoodness of stars and fans for the Hajos graph,
with Jiafu He and Haiyu Zeng, Discrete Mathematics& Theoretical Computer Science, 27(3) (2025), Art. no. 11.
3. Weakenedsize Gallai-Ramsey numbers for K5,
with Ze Wang, Bulletin of the Iranian MathematicalSociety, 51 (2025), Art. no. 72.
4. Ramseynumbers of cycles versus multiple wheels,
with Zhaofa Wang, Filomat, 39(33) (2025), 11961–11967.
5. Matching-starsize Ramsey numbers under connectivity constraint,
with Fanghua Guo and Yunqing Zhang, Journal ofCombinatorial Mathematics and Combinatorial Computing, 126 (2025), 93–100.
6. Connectedsize Ramsey numbers of matchings versus a small path or cycle,
with Sha Wang, Ruyu Song, and Yixin Zhang,Electronic Journal of Graph Theory and Applications, 13(1) (2025), 163–170.
7. Star-quadrilateralRamsey number and beyond,
with Yaojun Chen and Xuemei Zhang, Advances inMathematics (China), 54(2) (2025), 292–314.
部分较早论文:
1. The Ramseynumber of a long even cycle versus a star,
with Peter Allen, Tomasz Łuczak and Joanna Polcyn,Journal of Combinatorial Theory, Series B, 162 (2023), 144–153.
2. On fan-wheeland tree-wheel Ramsey numbers,
with Hajo Broersma and Yaojun Chen, DiscreteMathematics, 339 (2016), 2284–2287.
3. Onstar-critical and upper size Ramsey numbers,
with Hajo Broersma and Yaojun Chen, DiscreteApplied Mathematics, 202 (2016), 174–180.
4. Ramseynumbers of trees versus fans,
with Hajo Broersma and Yaojun Chen, DiscreteMathematics, 338 (2015), 994–999.
5. The Ramseynumbers of wheels versus odd cycles,
with Yaojun Chen and Yunqing Zhang, DiscreteMathematics, 323 (2014), 76–80.
