Bounds for the skew Estrada index of oriented graphs
GAO Nan1*, LI Jing2
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(1 College of Science, Xi′an Shiyou University, Xi′an 710065, Shaanxi, China;2 Department of Applied Mathematics, Northwestern Polytechnical University, Xi′an 710072, Shaanxi, China)
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Received
2017-07-23
Issue Date
2022-08-03
Abstract
The skew Estrada index is a skew-spectrum-based invariant of oriented graphs. By using thealgebraic and elementary analysis method, lower and upper bounds for the skew Estrada index of oriented graphs are obtained.The bounds for the skew Estrada index for two specific graphs are discussed.
GAO Nan, LI Jing.
Bounds for the skew Estrada index of oriented graphs. Journal of Shaanxi Normal University(Natural Science Edition). 2018, 46(3): 60-64