Jack H. Koolen

Electron. J. Comb., 2023

The Lemmens-Seidel conjecture and forbidden subgraphs.

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J. Comb. Theory, Ser. A, 2022

Thin Q-Polynomial Distance-Regular Graphs Have Bounded c2.

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Graphs Comb., 2022

On the spectrum and linear programming bound for hypergraphs.

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Eur. J. Comb., 2022

The 2-partially distance-regular graphs such that their second largest local eigenvalues are at most one.

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[DOI]

Yuanjiang Zhang

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Xiaoye Liang

,

Discret. Math., 2022

Remarks on pseudo-vertex-transitive graphs with small diameter.

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[DOI]

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Jae-Ho Lee

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Ying-Ying Tan

Discret. Math., 2022

Neumaier graphs with few eigenvalues.

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Des. Codes Cryptogr., 2022

There Does Not Exist a Strongly Regular Graph with Parameters $(1911, 270, 105, 27)$.

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Brhane Gebremichel

Electron. J. Comb., 2022

Connectivity concerning the last two subconstituents of a Q-polynomial distance-regular graph.

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Paul M. Terwilliger

J. Comb. Theory, Ser. A, 2021

Preface to the special issue dedicated to Professors Eiichi Bannai and Hikoe Enomoto on their 75th birthdays.

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Graphs Comb., 2021

Recent Progress on Graphs with Fixed Smallest Adjacency Eigenvalue: A Survey.

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Mengyue Cao

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Graphs Comb., 2021

Maximality of Seidel matrices and switching roots of graphs.

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Graphs Comb., 2021

Addressing Johnson Graphs, Complete Multipartite Graphs, Odd Cycles, and Random Graphs.

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Exp. Math., 2021

Augmenting the Delsarte bound: A forbidden interval for the order of maximal cliques in strongly regular graphs.

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Eur. J. Comb., 2021

Two characterizations of the grid graphs.

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[DOI]

Brhane Gebremichel

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Mengyue Cao

,

Discret. Math., 2021

Thin Distance-Regular Graphs with Classical Parameters $(D, q, q, \frac{q^{t}-1}{q-1}-1)$ with $t> D$ are the Grassmann Graphs.

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Ying-Ying Tan

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Xiaoye Liang

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Electron. J. Comb., 2021

On the Cheeger constant for distance-regular graphs.

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J. Comb. Theory, Ser. A, 2020

On the nonexistence of pseudo-generalized quadrangles.

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Eur. J. Comb., 2020

A spectral characterization of the s-clique extension of the triangular graphs.

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Ying-Ying Tan

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Zheng-Jiang Xia

Discuss. Math. Graph Theory, 2020

A new characterization of the dual polar graphs.

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J. Comb. Theory, Ser. B, 2019

A generalization of a theorem of Hoffman.

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Jae Young Yang

J. Comb. Theory, Ser. B, 2019

On the Integrability of Strongly Regular Graphs.

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Masood Ur Rehman

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Graphs Comb., 2019

There Does Not Exist a Distance-Regular Graph with Intersection Array {80, 54, 12; 1, 6, 60}.

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Graphs Comb., 2019

On 2-walk-regular graphs with a large intersection number c2.

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Eur. J. Comb., 2019

A spectral characterization of the s-clique extension of the square grid graphs.

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[DOI]

Sakander Hayat

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Muhammad Riaz

Eur. J. Comb., 2019

Distance-regular graphs without 4-claws.

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Alexander L. Gavrilyuk

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Eur. J. Comb., 2019

The polytopal structure of the tight-span of a totally split-decomposable metric.

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Discret. Math., 2019

Another construction of edge-regular graphs with regular cliques.

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Discret. Math., 2019

Non-Bipartite Distance-Regular Graphs with a Small Smallest Eigenvalue.

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Yifan Jing

,

Electron. J. Comb., 2019

A Characterization of the Graphs of Bilinear (d×d)-Forms over F2.

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Alexander L. Gavrilyuk

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Comb., 2019

A valency bound for distance-regular graphs.

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J. Comb. Theory, Ser. A, 2018

Partially metric association schemes with a multiplicity three.

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[DOI]

Edwin R. van Dam

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J. Comb. Theory, Ser. B, 2018

Graphs with three eigenvalues and second largest eigenvalue at most 1.

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[DOI]

Xi-Ming Cheng

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,

J. Comb. Theory, Ser. B, 2018

Edge-regular graphs with regular cliques.

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Eur. J. Comb., 2018

Addressing Johnson graphs, complete multipartite graphs, odd cycles and other graphs.

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,

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CoRR, 2018

A spectral version of the Moore problem for bipartite regular graphs.

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Hiroshi Nozaki

CoRR, 2018

Open problems in the spectral theory of signed graphs.

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Art Discret. Appl. Math., 2018

Max-cut and extendability of matchings in distance-regular graphs.

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Weiqiang Li

Eur. J. Comb., 2017

Light tails and the Hermitian dual polar graphs.

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Des. Codes Cryptogr., 2017

A generalization of a theorem of Neumaier.

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[DOI]

Xi-Ming Cheng

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Des. Codes Cryptogr., 2017

Preface to the special issue dedicated to Andries E. Brouwer.

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Des. Codes Cryptogr., 2017

An Application of Hoffman Graphs for Spectral Characterizations of Graphs.

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Aida Abiad

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Electron. J. Comb., 2017

Maximizing the Order of a Regular Graph of Given Valency and Second Eigenvalue.

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SIAM J. Discret. Math., 2016

Equiangular lines in Euclidean spaces.

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J. Comb. Theory, Ser. A, 2016

Biregular graphs with three eigenvalues.

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Xi-Ming Cheng

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Alexander L. Gavrilyuk

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Eur. J. Comb., 2016

Arithmetic completely regular codes.

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Discret. Math. Theor. Comput. Sci., 2016

A collection of results concerning electric resistance and simple random walk on distance-regular graphs.

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Discret. Math., 2016

2-Walk-Regular Dihedrants from Group-Divisible Designs.

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Shao-Fei Du

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Electron. J. Comb., 2016

Characterizing block graphs in terms of their vertex-induced partitions.

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Australas. J Comb., 2016

Edge-signed graphs with smallest eigenvalue greater than -2.

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J. Comb. Theory, Ser. B, 2015

Some Results on the Eigenvalues of Distance-Regular Graphs.

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Graphs Comb., 2015

Optimal realizations of two-dimensional, totally-decomposable metrics.

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Discret. Math., 2015

Large regular graphs with given valency and second eigenvalue.

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CoRR, 2015

Regular graphs with maximal energy per vertex.

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Edwin R. van Dam

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Willem H. Haemers

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J. Comb. Theory, Ser. B, 2014

Disconnecting strongly regular graphs.

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Weiqiang Li

Eur. J. Comb., 2014

On geometric distance-regular graphs with diameter three.

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Eur. J. Comb., 2014

On fat Hoffman graphs with smallest eigenvalue at least -3.

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Ars Math. Contemp., 2014

There are only finitely many distance-regular graphs with valency k at least three, fixed ratio k2/k and large diameter.

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J. Comb. Theory, Ser. B, 2013

A note on distance-regular graphs with a small number of vertices compared to the valency.

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Eur. J. Comb., 2013

On electric resistances for distance-regular graphs.

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Eur. J. Comb., 2013

Distance-Regular Graphs with a Relatively Small Eigenvalue Multiplicity.

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Joohyung Kim

,

Electron. J. Comb., 2013

Distance-regular graphs with a2 or c2 at least half the valency.

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J. Comb. Theory, Ser. A, 2012

On a conjecture of Brouwer involving the connectivity of strongly regular graphs.

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Kijung Kim

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J. Comb. Theory, Ser. A, 2012

Injective optimal realizations of finite metric spaces.

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Discret. Math., 2012

A relationship between the diameter and the intersection number c 2 for a distance-regular graph.

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Des. Codes Cryptogr., 2012

Blocks and Cut Vertices of the Buneman Graph.

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SIAM J. Discret. Math., 2011

Classification of the family AT4(qs, q, q) of antipodal tight graphs.

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J. Comb. Theory, Ser. A, 2011

On a conjecture of Brouwer regarding the connectivity of strongly regular graphs

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Kijung Kim

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CoRR, 2011

On distance-regular graphs with smallest eigenvalue at least -m.

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J. Comb. Theory, Ser. B, 2010

Delsarte Set Graphs with Small c2.

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Graphs Comb., 2010

Shilla distance-regular graphs.

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Eur. J. Comb., 2010

A lower bound for the spectral radius of graphs with fixed diameter.

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Eur. J. Comb., 2010

A Conjecture of Biggs Concerning the Resistance of a Distance-Regular Graph.

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Electron. J. Comb., 2010

On Sum of Powers of the Laplacian and Signless Laplacian Eigenvalues of Graphs.

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Electron. J. Comb., 2010

An Algorithm for Computing Cutpoints in Finite Metric Spaces.

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J. Classif., 2010

Optimal realizations of generic five-point metrics.

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Alice Lesser

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Eur. J. Comb., 2009

The vertex-connectivity of a distance-regular graph.

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Andries E. Brouwer

,

Eur. J. Comb., 2009

The spectra of the local graphs of the twisted Grassmann graphs.

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Tatsuya Fujisaki

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Eur. J. Comb., 2009

Arithmetic completely regular codes

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Woo-Sun Lee

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William J. Martin

CoRR, 2009

Bounds for the Hückel Energy of a Graph.

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Ebrahim Ghorbani

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Jae Young Yang

Electron. J. Comb., 2009

Quartets in maximal weakly compatible split systems.

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Stefan Grünewald

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Woo-Sun Lee

Appl. Math. Lett., 2009

A graph-theoretical invariant of topological spaces.

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Appl. Math. Lett., 2009

Triangle-free distance-regular graphs with an eigenvalue multiplicity equal to their valency and diameter 3.

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Arjana Zitnik

Eur. J. Comb., 2008

Compatible decompositions and block realizations of finite metrics.

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Eur. J. Comb., 2008

On triangle-free distance-regular graphs with an eigenvalue multiplicity equal to the valency.

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Kris Coolsaet

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Eur. J. Comb., 2008

Counting vertices and cubes in median graphs of circular split systems.

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Eur. J. Comb., 2008

Preface.

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Discret. Math., 2008

Characterizing Cell-Decomposable Metrics.

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Electron. J. Comb., 2008

Block realizations of finite metrics and the tight-span construction I: The embedding theorem.

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Appl. Math. Lett., 2008

Cut points in metric spaces.

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Appl. Math. Lett., 2008

Two theorems concerning the Bannai-Ito conjecture.

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Eur. J. Comb., 2007

Delsarte clique graphs.

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Eur. J. Comb., 2007

Concerning the Relationship between Realizations and Tight Spans of Finite Metrics.

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Alice Lesser

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Discret. Comput. Geom., 2007

Characterizing distance-regularity of graphs by the spectrum.

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J. Comb. Theory, Ser. A, 2006

On the structure of the tight-span of a totally split-decomposable metric.

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Eur. J. Comb., 2006

Improving diameter bounds for distance-regular graphs.

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Eur. J. Comb., 2006

Combinatorics of lopsided sets.

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Eur. J. Comb., 2006

Triangle- and pentagon-free distance-regular graphs with an eigenvalue multiplicity equal to the valency.

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Stefko Miklavic

J. Comb. Theory, Ser. B, 2005

A generalization of an inequality of Brouwer-Wilbrink.

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J. Comb. Theory, Ser. A, 2005

The tight span of an antipodal metric space - Part I: : Combinatorial properties.

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Discret. Math., 2005

Some Interlacing Results for the Eigenvalues of Distance-regular graphs.

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Des. Codes Cryptogr., 2005

Delta additive and Delta ultra-additive maps, Gromov's trees, and the Farris transform.

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Discret. Appl. Math., 2005

A Note on Regular Near Polygons.

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Graphs Comb., 2004

The structure of spherical graphs.

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Dragan Stevanovic

Eur. J. Comb., 2004

The Tight Span of an Antipodal Metric Space: Part II--Geometrical Properties.

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Discret. Comput. Geom., 2004

Width and dual width of subsets in polynomial association schemes.

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J. Comb. Theory, Ser. A, 2003

Maximal Energy Bipartite Graphs.

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Graphs Comb., 2003

Addendum to "on line arrangements in the hyperbolic plane" [European J. Combin.23 (2002) 549-557].

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Andreas W. M. Dress

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Eur. J. Comb., 2003

A bound for the number of columns l(c, a, b) in the intersection array of a distance-regular graph.

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Eur. J. Comb., 2003

A Root Graph that is Locally the Line Graph of the Peterson Graph.

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Andries E. Brouwer

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Mikhail H. Klin

Discret. Math., 2003

On a Conjecture of Bannai and Ito: There are Finitely Many Distance-regular Graphs with Degree 5, 6 or 7.

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Eur. J. Comb., 2002

Hyperbolic Bridged Graphs.

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Eur. J. Comb., 2002

On Line Arrangements in the Hyperbolic Plane.

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Andreas W. M. Dress

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Eur. J. Comb., 2002

Krein parameters and antipodal tight graphs with diameter 3 and 4.

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Discret. Math., 2002

Six Points Suffice: How to Check for Metric Consistency.

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Eur. J. Comb., 2001

Maximal Energy Graphs.

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Adv. Appl. Math., 2001

A Classification of the Six-point Prime Metrics.

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Udo Tönges

Eur. J. Comb., 2000

Nonexistence of some Antipodal Distance-regular Graphs of Diameter Four.

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Eur. J. Comb., 2000

Equilateral Dimension of the Rectilinear Space.

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,

Monique Laurent

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Alexander Schrijver

Des. Codes Cryptogr., 2000

A Local Approach to 1-Homogeneous Graphs.

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Des. Codes Cryptogr., 2000

Graphs which Locally Mirror the Hypercube Structure.

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Sandi Klavzar

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,

Henry Martyn Mulder

Inf. Process. Lett., 1999

The coherency index.

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Udo Tönges

Discret. Math., 1998

The Distance-regular Graphs with Intersection Number a1!=0 and with an Eigenvalue -1-(b1/2).

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Comb., 1998

A Characterization of the Doob Graphs.

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J. Comb. Theory, Ser. B, 1995

Distance-regular Graphs the Distance Matrix of which has Only One Positive Eigenvalue.

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Sergey V. Shpectorov

Eur. J. Comb., 1994

On uniformly geodetic graphs.

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Graphs Comb., 1993

A new infinite series of regular uniformly geodetic code graphs.

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[DOI]

Andries E. Brouwer

,

Discret. Math., 1993

A new condition for distance-regular graphs.

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Eur. J. Comb., 1992

Perfect modes with distinct protective radii.

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J. M. van den Akker

,