Mathematics of Computation, Vol. 72, No. 243 (Jul., 2003), pp. 1329-1348 (20 pages) This paper is concerned with the union $sp_\Omega^{(j,k)} T_{n}(a)$ of all ...
Denote by 𝒲₁ the set of complex valued functions of the form a(z)=∑i=−∞+∞aizi such that ∑i=−∞+∞|iai|<∞. We call 𝖰𝖳-matrix a quasi-Toeplitz matrix 𝐴, associated with a symbol 𝑎(𝑧) ∈ 𝒲₁, of the ...
Random walks serve as fundamental models in the study of stochastic processes, simulating phenomena ranging from molecular diffusion to queuing networks and financial systems. Their inherent ...