| Publication | Date of Publication | Type |
|---|
| Cospectrality results for signed graphs with two eigenvalues unequal to $\pm 1$ | 2023-11-29 | Paper |
| The signed graphs with two eigenvalues unequal to \(\pm 1\) | 2023-11-14 | Paper |
| Cospectral mates for generalized Johnson and Grassmann graphs | 2023-10-31 | Paper |
| On signed graphs with at most two eigenvalues unequal to \(\pm 1\) | 2023-05-19 | Paper |
| Graph toughness from Laplacian eigenvalues | 2023-04-20 | Paper |
| Spectral symmetry in conference matrices | 2022-08-31 | Paper |
| The chromatic index of strongly regular graphs | 2022-03-24 | Paper |
| Spectra of strongly Deza graphs | 2021-09-30 | Paper |
| On sign-symmetric signed graphs | 2021-06-11 | Paper |
| Graph toughness from Laplacian eigenvalues | 2021-04-08 | Paper |
| Hoffman's ratio bound | 2021-03-16 | Paper |
| Universal spectra of the disjoint union of regular graphs | 2020-09-16 | Paper |
| On NP-hard graph properties characterized by the spectrum | 2020-08-31 | Paper |
| Cospectral pairs of regular graphs with different connectivity | 2020-02-17 | Paper |
| The graphs cospectral with the pineapple graph | 2019-10-09 | Paper |
| Spectral characterization of mixed extensions of small graphs | 2019-08-12 | Paper |
| Graph switching, 2-ranks, and graphical Hadamard matrices | 2019-08-12 | Paper |
| On the spectral characterization of mixed extensions of \(P_3\) | 2019-08-05 | Paper |
| Deza graphs with parameters and | 2019-07-19 | Paper |
| The chromatic index of strongly regular graphs | 2018-10-15 | Paper |
| Signed graphs cospectral with the path | 2018-06-20 | Paper |
| Cospectral mates for the union of some classes in the Johnson association scheme | 2018-01-12 | Paper |
| The graphs with all but two eigenvalues equal to \(-2\) or 0 | 2017-07-21 | Paper |
| Switched symplectic graphs and their 2-ranks | 2016-08-31 | Paper |
| On the spectral characterization of pineapple graphs | 2016-08-31 | Paper |
| Notes on simplicial rook graphs | 2016-06-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3195097 | 2015-10-21 | Paper |
| Godsil-McKay switching and isomorphism | 2015-08-17 | Paper |
| The graphs with all but two eigenvalues equal to \(\pm 1\) | 2015-06-04 | Paper |
| Cospectral regular graphs with and without a perfect matching | 2014-12-19 | Paper |
| Regular graphs with maximal energy per vertex | 2014-08-29 | Paper |
| Spectral characterizations of almost complete graphs | 2014-08-29 | Paper |
| Walk-regular divisible design graphs | 2014-07-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5419951 | 2014-06-11 | Paper |
| An interlacing approach for bounding the sum of Laplacian eigenvalues of graphs | 2014-04-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2856741 | 2013-10-30 | Paper |
| The maximum order of adjacency matrices of graphs with a given rank | 2012-11-28 | Paper |
| The maximum order of reduced square (0,1)-matrices with a given rank | 2012-11-01 | Paper |
| Cospectral graphs and regular orthogonal matrices of level 2 | 2012-10-24 | Paper |
| The graph with spectrum \(14^{1} 2^{40}( - 4)^{10}( - 6)^{9}\) | 2012-07-31 | Paper |
| Skew-adjacency matrices of graphs | 2012-05-14 | Paper |
| An odd characterization of the generalized odd graphs | 2011-12-08 | Paper |
| Spectra of graphs | 2011-11-30 | Paper |
| Universal adjacency matrices with two eigenvalues | 2011-07-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3001405 | 2011-05-31 | Paper |
| Divisible design graphs | 2011-04-11 | Paper |
| Strongly regular graphs with parameters \((4m^{4},2m^{4}+m^{2},m^{4}+m^{2},m^{4}+m^{2})\) exist for all \(m>1\) | 2010-09-10 | Paper |
| On the sum of Laplacian eigenvalues of graphs | 2010-04-06 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3656236 | 2010-01-13 | Paper |
| Developments on spectral characterizations of graphs | 2009-04-08 | Paper |
| Matchings in regular graphs from eigenvalues | 2009-03-04 | Paper |
| The integral trees with spectral radius 3 | 2008-11-06 | Paper |
| Strongly regular graphs with maximal energy | 2008-11-06 | Paper |
| A lower bound for the Laplacian eigenvalues of a graph-proof of a conjecture by Guo | 2008-10-06 | Paper |
| Spectral characterizations of lollipop graphs | 2008-05-15 | Paper |
| Zero forcing sets and the minimum rank of graphs | 2008-03-14 | Paper |
| On 3-chromatic distance-regular graphs | 2007-09-20 | Paper |
| Cospectral graphs and the generalized adjacency matrix | 2007-04-18 | Paper |
| Self-dual, not self-polar | 2006-12-14 | Paper |
| 5-chromatic strongly regular graphs | 2006-12-14 | Paper |
| Characterizing distance-regularity of graphs by the spectrum | 2006-12-07 | Paper |
| Regularity and the generalized adjacency spectra of graphs | 2006-07-20 | Paper |
| Conditions for singular incidence matrices | 2005-06-08 | Paper |
| Eigenvalues and perfect matchings | 2005-02-23 | Paper |
| Johan Jacob Seidel 1919--2001. | 2004-03-14 | Paper |
| Enumeration of cospectral graphs. | 2004-03-14 | Paper |
| Which graphs are determined by their spectrum? | 2003-11-19 | Paper |
| Equitable resolvable coverings | 2003-04-03 | Paper |
| The complement of the path is determined by its spectrum | 2003-02-05 | Paper |
| The Hermitian two-graph and its code | 2003-02-05 | Paper |
| Bicliques and eigenvalues | 2002-12-10 | Paper |
| Spectral characterizations of some distance-regular graphs | 2002-05-30 | Paper |
| The pseudo-geometric graphs for generalized quadrangles of order \((3,t)\) | 2002-02-10 | Paper |
| An infinite family of quasi-symmetric designs | 2002-01-21 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4505272 | 2000-09-26 | Paper |
| Binary codes of strongly regular graphs | 2000-01-24 | Paper |
| The search for pseudo orthogonal Latin squares of order six | 2000-01-01 | Paper |
| Minimum resolvable coverings with small parallel classes | 1999-10-05 | Paper |
| Graphs with constant \(\mu\) and \(\overline{\mu}\) | 1998-03-24 | Paper |
| Disconnected vertex sets and equidistant code pairs | 1998-02-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4346787 | 1998-01-13 | Paper |
| A characterization of distance-regular graphs with diameter three | 1997-11-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4357341 | 1997-09-25 | Paper |
| Spreads in strongly regular graphs | 1997-08-28 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4871763 | 1996-11-05 | Paper |
| Distance-regularity and the spectrum of graphs | 1996-08-26 | Paper |
| Interlacing eigenvalues and graphs | 1996-02-12 | Paper |
| Eigenvalues and the diameter of graphs | 1996-02-12 | Paper |
| Graphs cospectral with distance-regular graphs | 1995-11-05 | Paper |
| Quasi-symmetric designs related to the triangular graph | 1995-06-11 | Paper |
| The Gewirtz graph: An exercise in the theory of graph spectra | 1994-08-28 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4276287 | 1994-01-27 | Paper |
| A design and a code invariant under the simple group \(Co_ 3\) | 1993-06-29 | Paper |
| Structure and uniqueness of the \((81,20,1,6)\) strongly regular graph | 1993-01-16 | Paper |
| Some 2-ranks | 1993-01-16 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3973795 | 1992-06-26 | Paper |
| Regular 2-graphs and extensions of partial geometries | 1992-06-25 | Paper |
| Matrix constructions of divisible designs | 1992-06-25 | Paper |
| Divisible designs with \(r-\lambda{}_ 1=1\) | 1992-06-25 | Paper |
| On \((v,k,\lambda{})\) graphs and designs with trivial automorphism group | 1992-06-25 | Paper |
| A (49,16,3,6) strongly regular graph does not exist | 1989-01-01 | Paper |
| Strongly regular graphs with strongly regular decomposition | 1989-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3222881 | 1984-01-01 | Paper |
| A Partial Geometry pg(9, 8, 4) | 1982-01-01 | Paper |
| An inequality for generalized hexagons | 1981-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3912601 | 1981-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3931312 | 1981-01-01 | Paper |
| 2-designs having an intersection number \(k-n\) | 1980-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3866128 | 1980-01-01 | Paper |
| Some remarks on subdesigns of symmetric designs | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3866127 | 1979-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3879261 | 1979-01-01 | Paper |
| On Some Problems of Lovász Concerning the Shannon Capacity of a Graph | 1979-01-01 | Paper |
