CAREER: Hyperbolic geometry and knots and links

职业：双曲几何以及结和链接

• 批准号: 1252687
• 负责人: Jessica Purcell
• 金额: $ 37.32万
• 依托单位: Brigham Young University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1252687&HistoricalAwards=false
• 关键词: CAREER; Hyperbolic; geometry; knots; links

It has been known since the early 1980s that knot and link complements decompose into pieces admitting a geometric structure, with the most common geometry being hyperbolic. However, the connection between hyperbolic geometry and other knot and link invariants is still not well understood. The investigator will use recent developments and techniques in 3-manifold geometry and topology to make connections between hyperbolic geometry and link invariants, focusing on problems in two areas. First, she will relate hyperbolic geometry to quantum invariants, in particular continuing her recent work to find connections between hyperbolic geometry and the colored Jones polynomial. Second, she will obtain bounds on hyperbolic quantities based on diagrammatical and topological invariants of knots and links, for example bounding volume and cusp volume, and finding isotopy classes of geodesics. As part of the educational portion of this work, she will organize two conferences on connections of hyperbolic geometry, and continue her work with undergraduate, graduate, and K-12 students.This project concerns the study of 3-dimensional spaces called 3-manifolds, which include the space of our universe (with three spatial dimensions). These spaces appear in physics, mechanics, microbiology, and chemistry, and so we wish to better understand their mathematical properties. One way to study 3-manifolds is to drill out tubes around circles from a 3-dimensional sphere, and then reattach the tubes in a different manner. The space of drilled tubes about circles is called a link complement, or knot complement if there is just one circle. In this way, knot and link complements are building blocks for 3-manifolds. The investigator will study the geometry of knot and link complements, with the hope of finding new results on the properties of broader classes of 3-manifolds. This project includes many provisions for training students. Much of the research will be carried out with the assistance of undergraduate and graduate students. In addition, as part of this project the investigator will run two research conferences, during which several graduate students and postdoctoral researchers will be invited to present their related work. Finally, the investigator will continue to run mathematical workshops for children throughout the school year.

自20世纪80年代初以来，人们就知道纽结和链环补集分解成允许几何结构的片段，其中最常见的几何结构是双曲的。 然而，双曲几何与其他纽结和链环不变量之间的联系仍然没有得到很好的理解。研究人员将使用最新的发展和技术在3流形几何和拓扑，使双曲几何和链接不变量之间的连接，集中在两个领域的问题。 首先，她将双曲几何与量子不变量联系起来，特别是继续她最近的工作，寻找双曲几何与有色琼斯多项式之间的联系。 其次，她将获得基于结和链接的数学和拓扑不变量的双曲量的界限，例如包围体积和尖点体积，并找到测地线的合痕类。 作为这项工作的教育部分的一部分，她将组织两个会议的双曲几何的连接，并继续她的工作与本科生，研究生，和K-12学生.这个项目涉及的三维空间称为三维流形，其中包括我们的宇宙空间（三维空间）的研究. 这些空间出现在物理学、力学、微生物学和化学中，因此我们希望更好地理解它们的数学性质。 研究三维流形的一种方法是从三维球体中钻取围绕圆的管，然后以不同的方式重新连接管。 钻孔管关于圆的空间称为环补，如果只有一个圆，则称为纽结补。 这样，纽结补和链补是三维流形的构建块。 研究人员将研究结和链补的几何，希望找到更广泛的3-流形类的性质的新结果。 该项目包括许多培训学生的规定。 大部分研究将在本科生和研究生的协助下进行。 此外，作为该项目的一部分，研究人员将举办两次研究会议，期间将邀请几名研究生和博士后研究人员介绍他们的相关工作。 最后，研究员将继续在整个学年为儿童举办数学讲习班。