- Tytuł:
- On Regular Signed Graphs with Three Eigenvalues
- Autorzy:
-
Anđelić, Milica
Koledin, Tamara
Stanić, Zoran - Powiązania:
- https://bibliotekanauki.pl/articles/31534886.pdf
- Data publikacji:
- 2020-05-01
- Wydawca:
- Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
- Tematy:
-
adjacency matrix
eigenvalue
regular signed graph
signed line graph
block design - Opis:
- In this paper our focus is on regular signed graphs with exactly 3 (distinct) eigenvalues. We establish certain basic results; for example, we show that they are walk-regular. We also give some constructions and determine all the signed graphs with 3 eigenvalues, under the constraint that they are either signed line graphs or have vertex degree 3. We also report our result of computer search on those with at most 10 vertices.
- Źródło:
-
Discussiones Mathematicae Graph Theory; 2020, 40, 2; 405-416
2083-5892 - Pojawia się w:
- Discussiones Mathematicae Graph Theory
- Dostawca treści:
- Biblioteka Nauki
Artykuł