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• Combinatorics
• Finite Geometry
• Algebraic Coding Theory

Xiang Qing is a Chair Professor at the Southern University of Science and Technology (SUSTech), affiliated with the Department of Mathematics under the School of Science. Their research focuses on Combinatorics, Finite Geometry, and Algebraic Coding Theory, contributing to foundational mathematical structures and their applications. Research interests include the study of combinatorial designs, finite geometries, and coding theory. Notable work involves cyclotomic constructions, Hadamard matrices, and cross-correlations of binary sequences, with publications spanning decades from the late 1990s to 2021. Recent articles explore Cameron-Liebler line classes, Butson Hadamard matrices, and LDPC codes derived from finite geometries, highlighting advancements in algebraic and geometric combinatorics.

• Algebraic Combinatorics
• Representation Theory
• Number Theory

Xiang Ziqing is an Associate Professor at the Department of Mathematics, Southern University of Science and Technology. Their academic journey includes a Ph.D. in Mathematics from the University of Georgia (2014-2019), a postdoctoral research scholar role at Academia Sinica (2019-2022), and a B.Sc. in Computer Science from Shanghai Jiao Tong University. Current affiliation: Southern University of Science and Technology (since 2022) Education: Ph.D. in Mathematics (University of Georgia), B.Sc. in Computer Science (Shanghai Jiao Tong University) Research focuses on Algebraic Combinatorics , Representation Theory , and Number Theory . Key contributions include work on spherical designs, q-Schur algebras, and balanced combinatorial structures. Publications demonstrate expertise in theoretical proofs and geometric configurations. Recent articles analyze explicit constructions, nonexistence theorems, and inequalities in design theory, spanning applications in discrete geometry and algebraic coding. Trends show a consistent exploration of symmetry properties and combinatorial optimization problems.