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The orbits of the Coxeter Transformation and Rowmotion for cominuscule posets Yıldırım, Emine
Description
Let h to be the Coxeter number of a root system. We show that the Coxeter transformation of the incidence algebra coming from the order ideals in a cominuscule poset is periodic of order 'h+1' (up to a sign) in most cases using tools from representation theory of algebras. On the other hand, there is a combinatorial action, called the Rowmotion, defined on cominuscule posets. It is well-known that this action has order 'h' on the order ideals of a cominuscule poset. In this talk, we will demonstrate combinatorial similarities of the orbits of these two actions.
Item Metadata
Title |
The orbits of the Coxeter Transformation and Rowmotion for cominuscule posets
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2020-10-26T10:32
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Description |
Let h to be the Coxeter number of a root system. We show that the Coxeter transformation of the incidence algebra coming from the order ideals in a cominuscule poset is periodic of order 'h+1' (up to a sign) in most cases using tools from representation theory of algebras. On the other hand, there is a combinatorial action, called the Rowmotion, defined on cominuscule posets. It is well-known that this action has order 'h' on the order ideals of a cominuscule poset. In this talk, we will demonstrate combinatorial similarities of the orbits of these two actions.
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Extent |
31.0 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Queen's University
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Series | |
Date Available |
2021-04-25
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0396972
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Postdoctoral
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International