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ORCIDSebastian M. Cioaba
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- affiliation: University of Delaware, Department of Mathematical Sciences, DE, USA
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2020 – today
- 2024
[j50]Sebastian M. Cioaba, Dheer Noal Desai, Michael Tait:
The spectral even cycle problem. Comb. Theory 4(1) (2024)- [i25]Sebastian M. Cioaba, Vishal Gupta, Celso Marques:
On the minimum spectral radius of connected graphs of given order and size. CoRR abs/2405.15046 (2024) - 2023
- [j49]Sebastian M. Cioaba, Sean Dewar
, Georg Grasegger, Xiaofeng Gu:
Graph Rigidity Properties of Ramanujan Graphs. Electron. J. Comb. 30(3) (2023) - [j48]Sebastian M. Cioaba, Himanshu Gupta, Ferdinand Ihringer, Hirotake Kurihara:
The least Euclidean distortion constant of a distance-regular graph. Discret. Appl. Math. 325: 212-225 (2023) - [j47]Sebastian M. Cioaba, Dheer Noal Desai, Michael Tait:
A Spectral Erdős-Sós Theorem. SIAM J. Discret. Math. 37(3): 2228-2239 (2023) - 2022
- [j46]Sebastian M. Cioaba, Anthony Ostuni, Davin Park, Sriya Potluri, Tanay V. Wakhare, Wiseley Wong:
Extremal Graphs for a Spectral Inequality on Edge-Disjoint Spanning Trees. Electron. J. Comb. 29(2) (2022) - [j45]Sebastian M. Cioaba, Dheer Noal Desai, Michael Tait:
The spectral radius of graphs with no odd wheels. Eur. J. Comb. 99: 103420 (2022) - [j44]Sebastian M. Cioaba, Jack H. Koolen, Masato Mimura, Hiroshi Nozaki, Takayuki Okuda:
On the spectrum and linear programming bound for hypergraphs. Eur. J. Comb. 104: 103535 (2022) - [j43]Sebastian M. Cioaba, Himanshu Gupta:
On the Eigenvalues of Grassmann Graphs, Bilinear Forms Graphs and Hermitian Forms Graphs. Graphs Comb. 38(2): 30 (2022) - [i24]Sebastian M. Cioaba, Vishal Gupta:
A lower bound for the smallest eigenvalue of a graph and an application to the associahedron graph. CoRR abs/2210.08516 (2022) - 2021
- [j42]Sebastian M. Cioaba, Krystal Guo, Willem H. Haemers:
The chromatic index of strongly regular graphs. Ars Math. Contemp. 20(1): 187-194 (2021) - [j41]Davin Park, Anthony Ostuni, Nathan Hayes, Amartya Banerjee, Tanay V. Wakhare, Wiseley Wong, Sebastian M. Cioaba:
The toughness of Kneser graphs. Discret. Math. 344(9): 112484 (2021) - [j40]Sebastian M. Cioaba, Sean Dewar, Xiaofeng Gu:
Spectral conditions for graph rigidity in the Euclidean plane. Discret. Math. 344(10): 112527 (2021) - [j39]Noga Alon, Sebastian M. Cioaba, Brandon D. Gilbert, Jack H. Koolen, Brendan D. McKay:
Addressing Johnson Graphs, Complete Multipartite Graphs, Odd Cycles, and Random Graphs. Exp. Math. 30(3): 372-382 (2021) - [j38]Sebastian M. Cioaba, Jack H. Koolen, Paul M. Terwilliger:
Connectivity concerning the last two subconstituents of a Q-polynomial distance-regular graph. J. Comb. Theory A 177: 105325 (2021) - [j37]Melanie A. Matyi, Sebastian M. Cioaba, Marie T. Banich, Jeffrey M. Spielberg:
Identifying brain regions supporting amygdalar functionality: Application of a novel graph theory technique. NeuroImage 244: 118614 (2021) - [i23]Sebastian M. Cioaba, Himanshu Gupta:
On the eigenvalues of Grassmann graphs, Bilinear forms graphs and Hermitian forms graphs. CoRR abs/2102.10155 (2021) - [i22]Sebastian M. Cioaba, Anthony Ostuni, Davin Park, Sriya Potluri, Tanay V. Wakhare, Wiseley Wong:
Extremal Graphs for a Spectral Inequality on Edge-Disjoint Spanning Trees. CoRR abs/2104.01665 (2021) - 2020
- [j36]Sebastian M. Cioaba, Lihua Feng, Michael Tait, Xiao-Dong Zhang:
The Maximum Spectral Radius of Graphs Without Friendship Subgraphs. Electron. J. Comb. 27(4): 4 (2020) - [j35]Sebastian M. Cioaba, Randall J. Elzinga, David A. Gregory:
Some observations on the smallest adjacency eigenvalue of a graph. Discuss. Math. Graph Theory 40(2): 467-493 (2020) - [i21]Sebastian M. Cioaba:
Eigenvalues of graphs and spectral Moore theorems. CoRR abs/2004.09221 (2020) - [i20]Sebastian M. Cioaba, Gordon F. Royle, Zhao Kuang Tan:
On the flip graphs on perfect matchings of complete graphs and signed reversal graphs. CoRR abs/2006.12994 (2020) - [i19]Sebastian M. Cioaba, Jack H. Koolen, Masato Mimura, Hiroshi Nozaki, Takayuki Okuda:
On the spectrum and linear programming bound for hypergraphs. CoRR abs/2009.03022 (2020) - [i18]Saieed Akbari, Sebastian M. Cioaba, Samira Goudarzi, Aidin Niaparast, Artin Tajdini:
On a question of Haemers regarding vectors in the nullspace of Seidel matrices. CoRR abs/2011.06435 (2020)
2010 – 2019
- 2019
- [j34]Xueyi Huang, Qiongxiang Huang, Sebastian M. Cioaba:
The Second Eigenvalue of some Normal Cayley Graphs of Highly Transitive Groups. Electron. J. Comb. 26(2): 2 (2019) - [j33]Lihuan Mao, Sebastian M. Cioaba, Wei Wang:
Spectral characterization of the complete graph removing a path of small length. Discret. Appl. Math. 257: 260-268 (2019) - [j32]Sebastian M. Cioaba, Robert S. Coulter, Eugene Fiorini, Qing Xiang:
Preface to the Special Issue of Discrete Mathematics: Dedicated to the Algebraic and Extremal Graph Theory Conference, August 7-10, 2017, University of Delaware, Newark, USA. Discret. Math. 342(10): 2759 (2019) - [c1]Dominique Guillot, Alejandro Parada-Mayorga, Sebastian M. Cioaba, Gonzalo R. Arce:
Optimal Sampling Sets in Cographs. DSW 2019: 165-169 - [i17]Francesco Belardo, Sebastian M. Cioaba, Jack H. Koolen, Jianfeng Wang:
Open problems in the spectral theory of signed graphs. CoRR abs/1907.04349 (2019) - [i16]Sebastian M. Cioaba, Randall J. Elzinga, David A. Gregory:
Some observations on the smallest adjacency eigenvalue of a graph. CoRR abs/1912.03957 (2019) - 2018
- [j31]Francesco Belardo, Sebastian M. Cioaba, Jack H. Koolen, Jianfeng Wang:
Open problems in the spectral theory of signed graphs. Art Discret. Appl. Math. 1(2): #P2.10 (2018) - [j30]Sebastian M. Cioaba, Felix Lazebnik, Shuying Sun:
Spectral and Combinatorial Properties of Some Algebraically Defined Graphs. Electron. J. Comb. 25(4): 4 (2018) - [j29]Andries E. Brouwer, Sebastian M. Cioaba, Ferdinand Ihringer, Matt McGinnis:
The smallest eigenvalues of Hamming graphs, Johnson graphs and other distance-regular graphs with classical parameters. J. Comb. Theory B 133: 88-121 (2018) - [j28]Gabriele Oliva, Sebastian M. Cioaba, Christoforos N. Hadjicostis:
Distributed Calculation of Edge-Disjoint Spanning Trees for Robustifying Distributed Algorithms Against Man-in-the-Middle Attacks. IEEE Trans. Control. Netw. Syst. 5(4): 1646-1656 (2018) - [i15]Sebastian M. Cioaba, Jack H. Koolen, Hiroshi Nozaki:
A spectral version of the Moore problem for bipartite regular graphs. CoRR abs/1805.01056 (2018) - [i14]Sebastian M. Cioaba, Brandon D. Gilbert, Jack H. Koolen, Brendan D. McKay:
Addressing Johnson graphs, complete multipartite graphs, odd cycles and other graphs. CoRR abs/1808.04757 (2018) - 2017
- [j27]Sebastian M. Cioaba, Randall J. Elzinga, Michelle Markiewitz, Kevin N. Vander Meulen, Trevor Vanderwoerd:
Addressing graph products and distance-regular graphs. Discret. Appl. Math. 229: 46-54 (2017) - [j26]Sebastian M. Cioaba, Willem H. Haemers, Jason R. Vermette:
The graphs with all but two eigenvalues equal to -2 or 0. Des. Codes Cryptogr. 84(1-2): 153-163 (2017) - [j25]Sebastian M. Cioaba, Jacobus H. Koolen, Weiqiang Li:
Max-cut and extendability of matchings in distance-regular graphs. Eur. J. Comb. 62: 232-244 (2017) - [i13]Sebastian M. Cioaba, Travis Johnston, Matt McGinnis:
Cospectral mates for the union of some classes in the Johnson association scheme. CoRR abs/1701.08747 (2017) - [i12]Sebastian M. Cioaba, Felix Lazebnik, Shuying Sun:
Spectral and Combinatorial Properties of Some Algebraically Defined Graphs. CoRR abs/1708.07597 (2017) - [i11]Andries E. Brouwer, Sebastian M. Cioaba, Ferdinand Ihringer, Matt McGinnis:
The smallest eigenvalues of Hamming graphs, Johnson graphs and other distance-regular graphs with classical parameters. CoRR abs/1709.09011 (2017) - 2016
- [j24]Sebastian M. Cioaba, Jack H. Koolen, Hiroshi Nozaki, Jason R. Vermette:
Maximizing the Order of a Regular Graph of Given Valency and Second Eigenvalue. SIAM J. Discret. Math. 30(3): 1509-1525 (2016) - [i10]Sebastian M. Cioaba, Xiaofeng Gu:
Connectivity, toughness, spanning trees of bounded degree, and the spectrum of regular graphs. CoRR abs/1602.05922 (2016) - [i9]Sebastian M. Cioaba, Randall J. Elzinga, Michelle Markiewitz, Kevin N. Vander Meulen, Trevor Vanderwoerd:
Addressing Graph Products and Distance-Regular Graphs. CoRR abs/1609.05995 (2016) - 2015
- [j23]Sebastian M. Cioaba, Peter J. Cameron:
A Graph Partition Problem. Am. Math. Mon. 122(10): 972-982 (2015) - [i8]Sebastian M. Cioaba, Jack H. Koolen, Hiroshi Nozaki, Jason R. Vermette:
Large regular graphs with given valency and second eigenvalue. CoRR abs/1503.06286 (2015) - [i7]Sebastian M. Cioaba, Peng Xu:
Mixing Rates of Random Walks with Little Backtracking. CoRR abs/1506.01419 (2015) - [i6]Sebastian M. Cioaba, Jack H. Koolen, Weiqiang Li:
Max-cut and extendability of matchings in distance-regular graphs. CoRR abs/1507.06254 (2015) - 2014
- [j22]Sebastian M. Cioaba, Weiqiang Li:
The Extendability of Matchings in Strongly Regular Graphs. Electron. J. Comb. 21(2): 2 (2014) - [j21]Sebastian M. Cioaba, Wiseley Wong:
The spectrum and toughness of regular graphs. Discret. Appl. Math. 176: 43-52 (2014) - [j20]Sebastian M. Cioaba, Jack H. Koolen, Weiqiang Li:
Disconnecting strongly regular graphs. Eur. J. Comb. 38: 1-11 (2014) - [j19]Sebastian M. Cioaba, Felix Lazebnik, Weiqiang Li:
On the spectrum of Wenger graphs. J. Comb. Theory B 107: 132-139 (2014) - [i5]Sebastian M. Cioaba, Felix Lazebnik, Weiqiang Li:
On the Spectrum of Wenger Graphs. CoRR abs/1402.3341 (2014) - 2013
- [j18]Sebastian M. Cioaba, Michael Tait:
Variations on a theme of Graham and Pollak. Discret. Math. 313(5): 665-676 (2013) - [p2]M. Ram Murty, Sebastian M. Cioaba:
Ramanujan and expander graphs. Handbook of Finite Fields 2013: 642-658 - [i4]Sebastian M. Cioaba, Jack H. Koolen, Weiqiang Li:
Disconnecting strongly regular graphs. CoRR abs/1311.5634 (2013) - [i3]Sebastian M. Cioaba, Wiseley Wong:
Edge-disjoint spanning trees and eigenvalues of regular graphs. CoRR abs/1312.2245 (2013) - [i2]Sebastian M. Cioaba, Wiseley Wong:
The spectrum and toughness of regular graphs. CoRR abs/1312.2247 (2013) - 2012
- [j17]Sebastian M. Cioaba, André Kündgen:
Covering Complete Hypergraphs with Cuts of Minimum Total Size. Graphs Comb. 28(1): 109-122 (2012) - [j16]Sebastian M. Cioaba, Kijung Kim, Jack H. Koolen:
On a conjecture of Brouwer involving the connectivity of strongly regular graphs. J. Comb. Theory A 119(4): 904-922 (2012) - 2011
- [j15]Sebastian M. Cioaba, Michael Tait:
More Counterexamples to the Alon-Saks-Seymour and Rank-Coloring Conjectures. Electron. J. Comb. 18(1) (2011) - [j14]Sebastian M. Cioaba, André Kündgen, Craig Timmons, Vladislav V. Vysotsky:
Covering Complete r-Graphs with Spanning Complete r-Partite r-Graphs. Comb. Probab. Comput. 20(4): 519-527 (2011) - [p1]Sebastian M. Cioaba:
Some Applications of Eigenvalues of Graphs. Structural Analysis of Complex Networks 2011: 357-379 - [i1]Sebastian M. Cioaba, Kijung Kim, Jack H. Koolen:
On a conjecture of Brouwer regarding the connectivity of strongly regular graphs. CoRR abs/1105.0796 (2011) - 2010
- [j13]Sebastian M. Cioaba, Edwin R. van Dam, Jack H. Koolen, Jae-Ho Lee:
A lower bound for the spectral radius of graphs with fixed diameter. Eur. J. Comb. 31(6): 1560-1566 (2010) - [j12]Suil O, Sebastian M. Cioaba:
Edge-Connectivity, Eigenvalues, and Matchings in Regular Graphs. SIAM J. Discret. Math. 24(4): 1470-1481 (2010)
2000 – 2009
- 2009
- [j11]Sebastian M. Cioaba, David A. Gregory, Willem H. Haemers:
Matchings in regular graphs from eigenvalues. J. Comb. Theory B 99(2): 287-297 (2009) - [j10]Sebastian M. Cioaba, André Kündgen, Jacques Verstraëte:
On decompositions of complete hypergraphs. J. Comb. Theory A 116(7): 1232-1234 (2009) - 2008
- [j9]Orest Bucicovschi, Sebastian M. Cioaba:
The minimum degree distance of graphs of given order and size. Discret. Appl. Math. 156(18): 3518-3521 (2008) - 2007
- [j8]Sebastian M. Cioaba:
The Spectral Radius and the Maximum Degree of Irregular Graphs. Electron. J. Comb. 14(1) (2007) - [j7]Sebastian M. Cioaba, David A. Gregory, Vladimir Nikiforov:
Extreme eigenvalues of nonregular graphs. J. Comb. Theory B 97(3): 483-486 (2007) - [j6]Reid Andersen, Sebastian M. Cioaba:
Spectral Densest Subgraph and Independence Number of a Graph. J. Univers. Comput. Sci. 13(11): 1501-1513 (2007) - 2006
- [j5]Sebastian M. Cioaba:
Sums of powers of the degrees of a graph. Discret. Math. 306(16): 1959-1964 (2006) - [j4]Sebastian M. Cioaba:
On the extreme eigenvalues of regular graphs. J. Comb. Theory B 96(3): 367-373 (2006) - 2005
- [j3]Sebastian M. Cioaba, Tim LeSaulnier, Dan Saracino:
A Sufficient Condition for Commutativity: 11066. Am. Math. Mon. 112(10): 932-933 (2005) - 2004
- [j2]Sebastian M. Cioaba:
Bounds on the Turán Density of PG(3, 2). Electron. J. Comb. 11(1) (2004) - [j1]Sebastian M. Cioaba:
Problem 11066. Am. Math. Mon. 111(2): 166 (2004)
Coauthor Index
aka: Jacobus H. Koolen
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