# Search results

Applied Mathematics and Computation > 2013 > 220 > Complete > 268-276

International Journal of Quantum Chemistry > 121 > 6 > n/a - n/a

Mathematical Methods in the Applied Sciences > 44 > 1 > 265 - 273

Australian & New Zealand Journal of Statistics > 62 > 1 > 95 - 115

Mathematische Nachrichten > 293 > 3 > 585 - 610

Mathematical Methods in the Applied Sciences > 42 > 18 > 6733 - 6740

Results in Mathematics > 2019 > 74 > 4 > 1-13

*k*be a nonzero complex number. In this paper, we consider a

*k*-circulant matrix whose first row is $$(P_{1},P_{2},\dots ,P_{n})$$ (P1,P2,⋯,Pn) , where $$P_{n}$$ Pn is the

*n*th Pell number, and obtain the formulae for the eigenvalues of such matrix improving the result which can be obtained from the result of Theorem 7 (Yazlik and Taskara in J Inequal Appl 2013:394, 2013). The obtained formulae...

Mathematical Methods in the Applied Sciences > 42 > 16 > 5331 - 5339

*q*‐difference equation.

Mathematical Methods in the Applied Sciences > 42 > 16 > 5498 - 5508

Numerical Linear Algebra with Applications > 26 > 5 > n/a - n/a

*d*, measured in the Frobenius norm, of a real tridiagonal 2‐Toeplitz matrix

*T*to the closure ${N}_{T}^{R}$ of the set formed by the real irreducible tridiagonal normal matrices. The matrices in ${N}_{T}^{R}$, whose distance to

*T*is

*d*, are characterized, and the location of their eigenvalues...

Journal of Inequalities and Applications > 2019 > 2019 > 1 > 1-10

*s*and

*k*is presented. By adjusting the parameters...

Russian Mathematics > 2019 > 63 > 6 > 29-41

*n*-th order linear equation with differential operator corresponding to the direction of the main diagonal in the space of independent variables; its coefficients. in general, are variable but constant on the diagonal. We establish conditions on variable eigenvalues which give a possibility to apply some known methods of the theory of for ODEs, when integrating the equation. On this...

Results in Mathematics > 2019 > 74 > 4 > 1-10

*n*non-commuting indeterminates $$Z_1,\ldots ,Z_n$$ Z1,…,Zn is said to be

*d*

*-positive*(respectively,

*d*

*-copositive*) if for all real symmetric (respectively, positive semidefinite) $$(d \times d)$$ (d×d) -matrices $$A_1,\ldots ,A_n$$ A1,…,An , the matrix $$f(A_1,\ldots ,A_n)$$ f(A1,…,An) is positive semidefinite. When $$d=1$$...

Mechanics of Solids > 2018 > 53 > 5 > 510-519

Results in Mathematics > 2019 > 74 > 4 > 1-12

Iranian Journal of Science and Technology, Transactions A: Science > 2019 > 43 > 5 > 2515-2522

Journal of Applied Analysis > 2019 > Vol. 25, nr 1 > 13--23

_{0}-semigroup; its spectrum consists of zeros of a sine-type function,...

Continuum Mechanics and Thermodynamics > 2019 > 31 > 4 > 1205-1229

Quantum Studies: Mathematics and Foundations > 2019 > 6 > 3 > 315-333

*z*runs through a complex contour...

Research in Number Theory > 2019 > 5 > 3 > 1-9

*F*of a pair of elliptic cusp forms

*f*,

*g*having square-free levels (where

*g*has weight 2 and satisfies $$(\log Q_{g})^2 \ll \log Q_f$$ (logQg)2≪logQf ), occurs before $$c_{\epsilon } \cdot Q_F^{1/2-2 \theta + \epsilon }$$ cϵ·QF1/2-2θ+ϵ ; where $$Q_F,Q_f,Q_g$$ QF,Qf,Qg are the analytic conductors...