The Transition Matrix Between the Specht and ??3 Web Bases is Unitriangular With Respect to Shadow Containment
The Transition Matrix Between the Specht and ??3 Web Bases is Unitriangular With Respect to Shadow Containment
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就影子遏制而言,Spect 和 ??3 Web 基地之间的过渡矩阵是单位三角形的
DOI:
10.1093/imrn/rnaa290
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发表时间:
2020
影响因子:
1
通讯作者:
Tymoczko, Julianna
中科院分区:
文献类型:
--
作者:
Russell, Heather M;Tymoczko, Julianna
Webs are planar graphs with boundary that describe morphisms in a diagrammatic representation category for. They are studied extensively by knot theorists because braiding maps provide a categorical way to express link diagrams in terms of webs, producing quantum invariants like the well-known Jones polynomial. One important question in representation theory is to identify the relationships between different bases; coefficients in the change-of-basis matrix often describe combinatorial, algebraic, or geometric quantities (e.g., Kazhdan–Lusztig polynomials). By ”flattening” the braiding maps, webs can also be viewed as the basis elements of a symmetric group representation. In this paper, we define two new combinatorial structures for webs:band diagramsand their one-dimensional projections,shadows, which measure depths of regions inside the web. As an application, we resolve an open conjecture that the change of basis between the so-calledSpecht basisand web basis of this symmetric group representation is unitriangular for-webs ( and .) We do this using band diagrams and shadows to construct a new partial order on webs that is a refinement of the usual partial order. In fact, we prove that for-webs, our new partial order coincides with the tableau partial order on webs studied by the authors and others [ , , , ]. We also prove that though the new partial order for-webs is a refinement of the previously studied tableau order, the two partial orders do not agree for.
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DOI:
10.1017/s0305004111000132
发表时间:
2008
影响因子:
0.8
作者:
Heather M. Russell;Julianna Tymoczko
通讯作者:
Julianna Tymoczko
影响因子:
1.6
作者:
M. Khovanov
通讯作者:
M. Khovanov
影响因子:
0.8
作者:
Heather M. Russell
通讯作者:
Heather M. Russell
DOI:
10.1093/imrn/rnx164
发表时间:
2017
期刊:
arXiv: Representation Theory
影响因子:
--
作者:
Heather M. Russell;Julianna Tymoczko
通讯作者:
Julianna Tymoczko
影响因子:
1.8
作者:
Bruce Fontaine;J. Kamnitzer;G. Kuperberg
通讯作者:
G. Kuperberg