In this research, the radial Schrodinger equation for a newly proposed screened Kratzer-Hellmann potential model was studied via conventional Nikiforov-Uvarov method. The approximate bound state solution of obtained using Greene-Aldrich approximation, in addition to normalized eigenfunction new both analytically and numerically. These results were employed evaluate rotational-vibrational partit...

Recently, Souza introduced blowup Ramsey numbers as a generalization of bipartite numbers. For graphs $G$ and $H$, say $G\overset{r}{\longrightarrow} H$ if every $r$-edge-coloring contains monochromatic copy $H$. Let $H[t]$ denote the $t$-blowup Then number $G,H,r,$ $t$ is defined minimum $n$ such that $G[n] \overset{r}{\longrightarrow} H[t]$. proved upper lower bounds on are exponential in $t$...

We give upper and lower bounds on the largest singular value of a matrix using analogues to walks in graphs. For nonnegative matrices these bounds are asymptotically tight. In particular, the following result improves a bound due to Schur. If A = (aij) is an m× n complex matrix, its largest singular value satisfies σ (A) ≤ max i∈[m] ∑ j∈[n] |aij| cj ≤ max aij 6=0 ricj, where ri = ∑ k∈[n] |aik| ...

Exact solutions of Schrödinger equation are obtained for PT-/non-PT-symmetric and non-Hermitian generalized Woods−Saxon potential to get the complex-valued energy eigenvalues and the corresponding eigenfunctions for the bound states. NikiforovUvarov method is used in the calculations and generalized by means of the complex conjugate polynomials on the PT−symmetric quantum mechanics frame of ref...

The influence of temperature and a constant strong magnetic field on the quarkonium heavy meson spectrum is explored as result recent research suggesting that can be formed at primary stage in ultrarelativistic ion collisions (URHIC). Debye screen potential used non-relativistic models, states are termed charmonium & bottominum. In order to better understand current findings, comparison has...

We report bound-state solutions of the Klein–Gordon equation with a novel combined potential, Eckart plus class Yukawa by means parametric Nikiforov–Uvarov method. To deal centrifugal and coulombic behavior terms, we apply Greene–Aldrich approximation scheme. present any $$\ell$$ -state energy eigenvalues corresponding normalized wave functions mentioned system in closed form. discuss various s...

We investigated the effects of external magnetic and Aharonov–Bohm flux fields on thermodynamic properties, Fisher, Shannon Rényi information-theoretic measures using non-relativistic Schrödinger equation with a Varshni-type potential. adopted parametric Nikiforov–Uvarov approach to obtain analytical bound states in closed form. The functions such as free energy, specific heat capacity, vibrati...