A306002
Number of distinct real eigenvalues of n X n matrices with elements {-1, 0, +1}.
Original entry on oeis.org
3, 11, 157, 8825, 2681903
Offset: 1
- Steven E. Thornton & Robert M. Corless, The Bohemian Eigenvalue Project, Poster Presented at The International Symposium on Symbolic and Algebraic Computation (ISSAC 2016). Wilfrid Laurier University, July 19-22, 2016.
Number of distinct eigenvalues:
A271570.
Number of characteristic polynomials:
A272658.
A306817
Number of non-derogatory n X n matrices with elements {-1, 0, 1}.
Original entry on oeis.org
3, 78, 18942, 41840168
Offset: 1
Number of characteristic polynomials is in
A272658.
Number of minimal polynomials is in
A271587.
A306820
Number of nilpotent n X n matrices with elements {-1, 0, 1}.
Original entry on oeis.org
1, 9, 481, 148817, 243782721
Offset: 1
Number of characteristic polynomials is in
A272658.
Number of distinct eigenvalues is in
A271570.