Research graph
References from Extremal Q-index problem in outerplanar graphs. Local targets link to admitted publications; unresolved targets remain external evidence.
Eine Extremalaufgabe aus der Graphentheorie
1941 · External reference
The history of degenerate (bipartite) extremal graph problems
2013 · External reference
Extremal C4-free/C5-free planar graphs
10.1002/jgt.21991 · 2016 · External reference
Planar Turán number and planar anti-Ramsey number of graphs
2021 · External reference
Planar Turán numbers of cycles: a counterexample
10.37236/10774 · 2022 · External reference
Planar Turán number of the 6-cycle
10.1137/21m140657x · 2022 · External reference
A new construction for the planar Turán number of cycles
10.1007/s00373-024-02822-4 · 2024 · External reference
Planar Turán number of the 7-cycle
10.1016/j.ejc.2025.104134 · 2025 · External reference
Dense circuit graphs and the planar Turán number of a cycle
10.1002/jgt.23165 · 2025 · External reference
Generalized outerplanar Turán numbers and maximum number of k-vertex subtrees
10.1016/j.dam.2021.10.017 · 2022 · External reference
Generalized outerplanar Turán number of short paths
10.1016/j.disc.2022.113205 · 2023 · External reference
Outerplanar Turán numbers of cycles and paths
10.1016/j.disc.2023.113655 · 2023 · External reference
Extremal spectral results of planar graphs without vertex-disjoint cycles
10.1002/jgt.23084 · 2024 · External reference
The largest eigenvalue of a graph: a survey
10.1080/03081089008818026 · 1990 · External reference
Three conjectures in extremal spectral graph theory
10.1016/j.jctb.2017.04.006 · 2017 · External reference
A complete solution to the Cvetković-Rowlinson conjecture
10.1002/jgt.22667 · 2021 · External reference
The extremal spectral radius of outerplanar graphs without Ck
10.1142/s1793830924501064 · 2025 · External reference
Spectral extremal problems on outerplanar and planar graphs
10.1016/j.disc.2025.114673 · 2026 · External reference
On the spectral extremal problem of planar graphs
10.1007/s40314-025-03384-8 · 2025 · External reference
Maxima of the signless Laplacian spectral radius for planar graphs
10.13001/1081-3810.2023 · 2015 · External reference
Maxima of the Q-index for outer-planar graphs
10.1080/03081087.2014.977214 · 2015 · External reference
The signless Laplacian spectral radius of book-free graphs
10.1016/j.disc.2025.114448 · 2025 · External reference
The signless Laplacian spectral radius of graphs without intersecting odd cycles
10.13001/ela.2024.8149 · 2024 · External reference
Maxima of the Q-index: graphs without long paths
2014 · External reference
The signless Laplacian spectral radius of 2K3-free graphs
10.1016/j.disc.2024.114075 · 2024 · External reference
A general theorem in spectral extremal graph theory
10.1090/tran/9691 · 2026 · External reference
Unresolved reference
2008 · External reference
Unresolved reference
1988 · External reference
Towards a spectral theory of graphs based on the signless Laplacian II
10.1016/j.laa.2009.05.020 · 2010 · External reference
On three conjectures involving the signless Laplacian spectral radius of graphs
10.2298/pim0999035f · 2009 · External reference
Bounds on the index of the signless Laplacian of a graph
10.1016/j.dam.2009.06.023 · 2010 · External reference
Signless Laplacians of finite graphs
10.1016/j.laa.2007.01.009 · 2007 · External reference
Extremal C4-free/C5-free planar graphs
10.1002/jgt.21991 · ExternalCitation · doi-reference
A complete solution to the Cvetković-Rowlinson conjecture
10.1002/jgt.22667 · ExternalCitation · doi-reference
Extremal spectral results of planar graphs without vertex-disjoint cycles
10.1002/jgt.23084 · ExternalCitation · doi-reference
Dense circuit graphs and the planar Turán number of a cycle
10.1002/jgt.23165 · ExternalCitation · doi-reference
A new construction for the planar Turán number of cycles
10.1007/s00373-024-02822-4 · ExternalCitation · doi-reference
On the spectral extremal problem of planar graphs
10.1007/s40314-025-03384-8 · ExternalCitation · doi-reference
Bounds on the index of the signless Laplacian of a graph
10.1016/j.dam.2009.06.023 · ExternalCitation · doi-reference
Generalized outerplanar Turán numbers and maximum number of k-vertex subtrees
10.1016/j.dam.2021.10.017 · ExternalCitation · doi-reference
Generalized outerplanar Turán number of short paths
10.1016/j.disc.2022.113205 · ExternalCitation · doi-reference
Outerplanar Turán numbers of cycles and paths
10.1016/j.disc.2023.113655 · ExternalCitation · doi-reference
The signless Laplacian spectral radius of 2K3-free graphs
10.1016/j.disc.2024.114075 · ExternalCitation · doi-reference
The signless Laplacian spectral radius of book-free graphs
10.1016/j.disc.2025.114448 · ExternalCitation · doi-reference
Spectral extremal problems on outerplanar and planar graphs
10.1016/j.disc.2025.114673 · ExternalCitation · doi-reference
Planar Turán number of the 7-cycle
10.1016/j.ejc.2025.104134 · ExternalCitation · doi-reference
Three conjectures in extremal spectral graph theory
10.1016/j.jctb.2017.04.006 · ExternalCitation · doi-reference
Signless Laplacians of finite graphs
10.1016/j.laa.2007.01.009 · ExternalCitation · doi-reference
Towards a spectral theory of graphs based on the signless Laplacian II
10.1016/j.laa.2009.05.020 · ExternalCitation · doi-reference
Maxima of the Q-index for outer-planar graphs
10.1080/03081087.2014.977214 · ExternalCitation · doi-reference
The largest eigenvalue of a graph: a survey
10.1080/03081089008818026 · ExternalCitation · doi-reference
A general theorem in spectral extremal graph theory
10.1090/tran/9691 · ExternalCitation · doi-reference
Planar Turán number of the 6-cycle
10.1137/21m140657x · ExternalCitation · doi-reference
The extremal spectral radius of outerplanar graphs without Ck
10.1142/s1793830924501064 · ExternalCitation · doi-reference
Maxima of the signless Laplacian spectral radius for planar graphs
10.13001/1081-3810.2023 · ExternalCitation · doi-reference
The signless Laplacian spectral radius of graphs without intersecting odd cycles
10.13001/ela.2024.8149 · ExternalCitation · doi-reference
On three conjectures involving the signless Laplacian spectral radius of graphs
10.2298/pim0999035f · ExternalCitation · doi-reference
Planar Turán numbers of cycles: a counterexample
10.37236/10774 · ExternalCitation · doi-reference
