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Some Characterizations of Ellipsoids by Sections

✍ Scribed by Javier Alonso; Pedro Martín


Publisher
Springer
Year
2004
Tongue
English
Weight
863 KB
Volume
31
Category
Article
ISSN
0179-5376

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Some characterizations of graphs by star
✍ Dragoš Cvetković; Peter Rowlinson; Slobodan K. Simić 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 158 KB

Let µ be an eigenvalue of the graph G with multiplicity k. A star complement for µ in G is an induced subgraph H = G -X such that |X| = k and µ is not an eigenvalue of G -X. Various graphs related to (generalized) line graphs or their complements are characterized by star complements corresponding t