نتایج جستجو برای: روش nikiforov
تعداد نتایج: 369767 فیلتر نتایج به سال:
By using the generalized parametric Nikiforov–Uvarov (NU) method, we have obtained the approximate analytical solutions of the radial Schrödinger equation for a perturbed Yukawa potential. The energy eigenvalues and corresponding eigenfunctions are calculated in closed forms. Some numerical results are presented and compared with the standard Yukawa potential. Further, we found the energy level...
We generalize a construction of Dunkl, obtaining a wide class intertwining functions on the symmetric group and a related family of multidimensional Hahn polynomials. Following a suggestion of Vilenkin and Klymik, we develop a tree-method approach for those intertwining functions. We also give a group theoretic proof of the relation between Hahn polynomials and Clebesh-Gordan coefficients, give...
The authors of this article aim to contextualize the religious-philosophical ideas prominent philosopher Russian emigration, Ivan Ilyin, with prose Bunin, Boris Zaitsev, and Vladimir Nikiforov-Volgin. novelty research lies in identifying typological correlation between Ilyin’s about essential characteristics national character, manifested pursuit perfection, artistic worldview writers who inter...
Motivated by the counting results for color-critical subgraphs Mubayi (2010), we study phenomenon behind Mubayi’s theorem from a spectral perspective and start up this problem with fundamental case of triangles. We prove tight bounds number copies triangle in graph order n size m radius λ. Our extend those Nosal, who proved there is one if λ>m, Rademacher, are at least ⌊n2⌋ triangles more than ...
We present the exact solution of the Klein-Gordon equation in D-dimensions in the presence of the noncentral equal scalar and vector pseudoharmonic potential plus the new ring-shaped potential using the Nikiforov-Uvarov method. We obtain the exact bound-state energy levels and the corresponding eigen functions for a spin-zero particles. We also find that the solution for this noncentral ring-sh...
Let G be a connected claw-free graph on n vertices and G be its complement. Let μ(G) be the spectral radius of G. Denote by Nn−3,3 the graph consisting of Kn−3 and three disjoint pendent edges. In this note we prove that: (1) If μ(G) ≥ n − 4, then G is traceable unless G = Nn−3,3. (2) If μ(G) ≤ μ(Nn−3,3) and n ≥ 24, then G is traceable unless G = Nn−3,3. Our works are counterparts on claw-free ...
Let μ(G) denote the spectral radius of a graph G. We partly confirm conjecture due to Nikiforov, which is analogue well-known Erdős-Sós Conjecture that any tree order t contained in average degree greater than t−2. Sn,k be obtained by joining every vertex complete on k vertices an independent set n−k, and let Sn,k+ from adding single edge two Sn,k. In 2010, Nikiforov conjectured for given integ...
Fevziye Yasuk, Aysen Durmus and Ismail Boztosun Department of Physics, Erciyes University, 38039 Kayseri Turkey Abstract We present an alternative and simple method for the exact solution of the Klein-Gordon equation in the presence of the non-central equal scalar and vector potentials by using Nikiforov-Uvarov (NU) method. The exact bound state energy eigenvalues and corresponding eigenfunctio...
Using the Nikiforov-Uvarov method, the bound state energy eigenvalues and eigenfunctions of the PT -/non-PT -symmetric and non-Hermitian generalized Woods-Saxon (WS) potential with the real and complex-valued energy levels are obtained in terms of the Jacobi polynomials. According to the PT -symmetric quantum mechanics, we exactly solved the time-independent Schrödinger equation with same poten...
Rover. I. Mitrofanov, M. Litvak, D. Lisov, A. Behar, W. Boynton, L. Deflores, F. Fedosov, D. Golovin, C. Hardgrove, K. Harshman, I. Jun, A. Kozyrev, R. Kuzmin, A. Malakhov, M. Mischna, J. Moersch, M. Mokrousov, S. Nikiforov, A. Sanin, V. Shvetsov, R. Starr, C. Tate, V. Tret’yakov, A. Varenikov, A. Vostrukhin and the MSL Team, Space Research Institute, RAS, Moscow, 117997, Russia, imitrofa@space...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید