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Virginia Tech

The Combinatorial Curve Neighborhoods of Affine Flag Manifold in Type A<sub>n-1</sub><sup>(1)</sup>

Abstract

dc:description.abstract

Let X be the affine flag manifold of Lie type A<sub>n-1</sub><sup>(1)</sup> where n ≥ 3 and let W<sub>aff</sub> be the associated affine Weyl group. The moment graph for X encodes the torus fixed points (which are elements of the affine Weyl group W<sub>aff</sub> and the torus stable curves in X. Given a fixed point u ∈ W<sub>aff</sub> and a degree d = (d₀, d₁, ..., d<sub>n−1</sub>) ∈ ℤ<sub>≥0</sub><sup>n</sup>, the combinatorial curve neighborhood is the set of maximal elements in the moment graph of X which can be reached from u′ ≤ u by a chain of curves of total degree ≤ d. In this thesis we give combinatorial formulas and algorithms for calculating these elements.

Degree

thesis:*
Name thesis:degree_name
Doctor of Philosophy
Level thesis:degree_level
doctoral
Discipline thesis:degree_discipline
Mathematics
Department dc:contributor.department
Mathematics
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
2019

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Aslan, Songul
Chair dc:contributor.committeechair
  • Mihalcea, Constantin Leonardo
Committee members dc:contributor.committeemember
  • Orr, Daniel D.
  • Shimozono, Mark M.
  • Floyd, William J.

Subjects

dc:subject × 5

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
vt_gsexam:21133
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/93039

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Aslan, Songul. The Combinatorial Curve Neighborhoods of Affine Flag Manifold in Type A<sub>n-1</sub><sup>(1)</sup>. doctoral thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/93039