On equiangular lines in 17 dimensions and the characteristic polynomial of a Seidel matrix
For e a positive integer, we find restrictions modulo 2e on the coefficients of the characteristic polynomial χS(x) of a Seidel matrix S. We show that, for a Seidel matrix of order n even (resp., odd), there are at most 2(e−2 2) (resp., 2((e−2 2)+1) possibilities for the congruence class of χS(x) mo...
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| Main Authors: | , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
2021
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| 在線閱讀: | https://hdl.handle.net/10356/146679 |
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