Konu "Eigenvalues" için listeleme
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Computing integer powers for a certain family of skew circulant matrices
(Işık University Press, 2020)In this paper, we derive a formula for the entries of the integer powers of a certain type of skew circulant matrices of odd and even order in terms of the Chebyshev polynomials of the first and second kind. Finally, we ... -
Computing µ-values and pseudo-spectra for Airy Operators
(Işık University Press, 2021)Stability analysis play a vital role to design a linear feedback system in system theory. The stability of a feedback system is the direct measure of the roots of characteristic equation of transfer functions. The main ... -
Graphs cospectral with multicone graphs KW 5 L(P)
(Işık University Press, 2017)E. R. van Dam and W. H. Haemers [15] conjectured that almost all graphs are determined by their spectra. Nevertheless, the set of graphs which are known to be determined by their spectra is small. Hence, discovering infinite ... -
On the norms of r-circulant matrices involving balancing and Lucas-balancing numbers
(Işık University Press, 2024-04)In this article, we investigate the r-circulant matrices B[r] and C[r] involving the balancing and Lucas-balancing numbers respectively with arithmetic indices. For matrices B[r] and C[r], we establish the direct formula ... -
Some notes on spectra of cographs
(Charles Babbage Res Ctr, 2011-07)A cograph is a P-4-free graph. We first give a short proof of the fact that 0 (-1) belongs to the spectrum of a connected cograph (with at least two vertices) if and only if it contains duplicate (resp. coduplicate) vertices. ...