Signed (0,2)-graphs with few eigenvalues and a symmetric spectrum

• المؤلفون الرئيسيون: Greaves, Gary Royden Watson, Stanić, Zoran
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2022
• الموضوعات: Science::Mathematics; Adjacency Matrix; Bipartite Double
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/162136
• المؤسسة: Nanyang Technological University

We investigate properties of signed graphs that have few distinct eigenvalues together with a symmetric spectrum. Our main contribution is to determine all signed rectagraphs (triangle-free signed (Formula presented.) -graphs) with vertex degree at most 6 that have precisely two distinct eigenvalues...