Permutation Patterns 2019-2021

第十七届国际置换模式大会将于2019年6月17日至6月21日在瑞士苏黎世大学举行。第18届大会将于2020年6月29日至7月3日在瓦尔帕莱索大学(印第安纳州瓦尔帕莱索)举行。这次会议将为排列模式领域的演讲者提供高质量的节目，为初级和高级研究人员之间以及来自世界各地的与会者之间的合作提供机会。每年的会议将有两位全会一小时的演讲者和若干次演讲，每次演讲30分钟。研究人员将展示他们的新成果，并将有时间进行公开讨论，探索该领域尚未解决的问题。该奖项支持来自美国的学生和早期职业数学家前往参加会议。这次会议是致力于排列模式领域的一系列年度会议的一部分。自2003年由新西兰奥塔哥大学主办第一届会议以来，每年都会在北美、欧洲和澳大拉西亚等世界各地的不同机构举行会议。这次会议将展示排列模式及其应用领域的最新研究成果。会议的主要主题包括模式类的结构理论，模式类的渐近行为，广义模式避免，包装密度，以及算法和可判断性问题。该领域的研究受到理论计算机科学的影响，其历史渊源可以追溯到对分拣机的研究。对排列模式的组合兴趣集中在中心重要的枚举和布局问题上，例如确定一个模式如何尽可能频繁地嵌入到排列中的极值问题。排列的统计数据也进入了这一图景，引起了概率学家的注意。预计这次会议将对数学和计算机科学的各种不同研究领域产生广泛影响。2019年大会的网站是https://sites.google.com/view/permutation-patterns-2019/，有关会议系列的更多信息请访问：https://blogs.valpo.edu/permpat/.This奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The 17th International Conference on Permutation Patterns will be held at University of Zurich in Switzerland from June 17 to June 21, 2019. The 18th edition of the conference will be held at Valparaiso University (Valparaiso, Indiana) from June 29 to July 3, 2020. The conference will provide a high quality program of speakers in the area of permutation patterns with opportunities for collaboration between junior and senior researchers, as well as between participants from around the world. Each year the conference will feature two plenary one-hour speakers and a number of contributed talks, each thirty minutes long. Researchers will present their new results and there will be time for open discussions to explore unsolved problems in the field. This award supports travel to the conference by students and early career mathematicians from the United States. This conference is part of a series of annual conferences devoted to the area of permutation patterns. Ever since the first conference in 2003, which was hosted by the University of Otago in New Zealand, it has been held every year at different institutions around the world: in North America, Europe, and Australasia.The conference will feature current research in the area of permutation patterns and its applications. Major themes in the conference include the structural theory of pattern classes, asymptotic behavior of pattern classes, generalized pattern avoidance, packing densities, and algorithmic and decidability problems. Research in the area is influenced by theoretical computer science, and traces its historical origins to the study of sorting machines. Combinatorial interest in permutation patterns focuses on centrally important enumeration and packing problems, for instance the extremal problem to determine how one pattern can be embedded as often as possible in a permutation. The statistics of permutations also enters into the picture, garnering attention from probabilists. The conference is expected to have a wide impact on a variety of different research areas in mathematics and computer science. The website for the 2019 conference is at https://sites.google.com/view/permutation-patterns-2019/ and more information about the conference series is available at: https://blogs.valpo.edu/permpat/.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.