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Li, Y., Feng, L. and Peng, Y. (2025) A Spectral Erdos-Faudree-Rousseau Theorem. Journal of Graph Theory, 110, 408-425. https://doi.org/10.1002/jgt.23280

has been cited by the following article:

• TITLE: Spectral Extremal Graphs for the F3 Graph

  AUTHORS: Yizhi Yin

  KEYWORDS: F3-Free, Spectral Extremal Graph, Balanced Complete Bipartite Graph

  JOURNAL NAME: Applied Mathematics, Vol.17 No.5, May 29, 2026

  ABSTRACT: Let Fk be the (friendship) graph obtained from k triangles by sharing a common vertex. In 2024, Li, Lu, Peng [Discrete Mathematics 346(2023)] show that the unique n-vertex F2 -free spectral extremal graph is the balanced bipartite graph adding an edge in smaller part if n ≥7. Following their result, we show that the unique n-vertex F3-free spectral extremal graph is the balanced complete bipartite graph adding two disjoint K3 in the vertex part with smaller size if n > 360.