Author

Guodong Li

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Open access Aug 2026

A DNA-Based Image Encryption Scheme Using Optimized Lorenz–Sprott Hyperchaotic System

Chaotic systems have been widely investigated for color image encryption because of their nonlinear dynamics, initial-condition sensitivity, and pseudorandom behavior. However, locating numerically robust parameter regions in high-dimensional hyperchaotic systems remains difficult, while many DNA-based schemes employ f...

Wen-Xia Xu, Liang Xue, Li-Ping Zhu et al. · Entropy · 0 citations

Open access Jul 2026

The Least Distance Eigenvalue of Complement Graphs with Two Pendant Vertices

Let G be a connected simple graph with the vertex set V(G)={v1,v2,…,vn}, where the distance dG(vi,vj) is the length of a shortest path between vi and vj, and the distance matrix D(G)=(dij)n×n is defined by dij=dG(vi,vj). Being real symmetric and non-negative, D(G) has real eigenvalues λ1(G)≥λ2(G)≥…≥λn(G), with λn(G) re...

Jinfeng Zhang, Xu Chen, Jia-Wen Deng et al. · Mathematics · 0 citations