Every Q-polynomial distance-regular graph is sharp over R

Blas Fernández; Jae Ho Lee; Jongyook Park

doi:10.1016/j.jcta.2026.106223

Every Q-polynomial distance-regular graph is sharp over R

Blas Fernández
, Jae Ho Lee
, Jongyook Park

Mathematics and Statistics

Research output: Contribution to journal › Article › peer-review

Original language	English
Article number	106223
Journal	Journal of Combinatorial Theory. Series A
Volume	224
DOIs	https://doi.org/10.1016/j.jcta.2026.106223
State	Published - Nov 2026

ASJC Scopus Subject Areas

Theoretical Computer Science
Discrete Mathematics and Combinatorics
Computational Theory and Mathematics

Keywords

Distance-regular graph
Q-polynomial
Sharpness
Terwilliger algebra
Wedderburn decomposition

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10.1016/j.jcta.2026.106223

Cite this

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title = "Every Q-polynomial distance-regular graph is sharp over R",

keywords = "Distance-regular graph, Q-polynomial, Sharpness, Terwilliger algebra, Wedderburn decomposition",

author = "Blas Fern{\'a}ndez and Lee, \{Jae Ho\} and Jongyook Park",

note = "Publisher Copyright: {\textcopyright} 2026 Elsevier Inc.",

year = "2026",

month = nov,

doi = "10.1016/j.jcta.2026.106223",

language = "English",

volume = "224",

}

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T1 - Every Q-polynomial distance-regular graph is sharp over R

AU - Fernández, Blas

AU - Lee, Jae Ho

AU - Park, Jongyook

PY - 2026/11

Y1 - 2026/11

KW - Distance-regular graph

KW - Q-polynomial

KW - Sharpness

KW - Terwilliger algebra

KW - Wedderburn decomposition

UR - https://www.scopus.com/pages/publications/105040074468

UR - https://www.scopus.com/pages/publications/105040074468#tab=citedBy

U2 - 10.1016/j.jcta.2026.106223

DO - 10.1016/j.jcta.2026.106223

M3 - Article

AN - SCOPUS:105040074468

SN - 0097-3165

VL - 224

JO - Journal of Combinatorial Theory. Series A

JF - Journal of Combinatorial Theory. Series A

M1 - 106223

ER -

Every Q-polynomial distance-regular graph is sharp over R

ASJC Scopus Subject Areas

Keywords

Access to Document

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