نتایج جستجو برای: respectively alpha
تعداد نتایج: 867435 فیلتر نتایج به سال:
<abstract><p>The zeroth-order general Randić index of graph $ G = (V_G, E_G) $, denoted by ^0R_{\alpha}(G) is the sum items (d_{v})^{\alpha} over all vertices v\in V_G where \alpha a pertinently chosen real number. In this paper, we obtain sharp upper and lower bounds on ^0R_{\alpha} trees with given domination number \gamma for \alpha\in(-\infty, 0)\cup(1, \infty) \alpha\in(0, 1) r...
We investigate the nonnegative solutions to nonlinear integral inequality $u \ge I_{\alpha}\ast\big((I_\beta \ast u^p)u^q\big)$ a.e. in $\mathbb{R}^N$, where $\alpha, \beta\in (0,N)$, $p, q>0$ and $I_\alpha$, $I_\beta$ denote Riesz potentials of order $\alpha$ $\beta$ respectively. Our approach relies on a nonlocal positivity principle which allows us derive optimal ranges for parameters $\alph...
<abstract><p>Let $ A(G) and D(G) be the adjacency matrix degree diagonal of a graph G $, respectively. For any real number \alpha \in[0, 1] Nikiforov defined A_{\alpha} $-matrix as A_{\alpha}(G) = D(G)+(1-\alpha)A(G) $. Let S_k(A_{\alpha}(G)) sum k largest eigenvalues In this paper, some bounds on are obtained, which not only extends results signless Laplacian matrix, but it also gi...
Lowest energy spectrum of the $^{12}$C nucleus is analyzed in 3$\alpha$ cluster model with a deep $\alpha\alpha$-potential Buck, Friedrich and Wheatley Pauli forbidden states $S$ $D$ waves. The direct orthogonalization method applied for elimination 3$\alpha$-Pauli states. effects possible first order quantum phase transition are shown lowest $^{12}$C($0_1^+)$ $^{12}$C($2_1^+)$ from weakly boun...
ینامیک هموار مطالعه ی شارها و یا نگاشت های مشتق پذیر می باشد. در میان سیستم های دینامیکی هموار دینامیک های هذلولوی به وسیله نمایش راستاهای انقباضی و انبساطی مشخص می شود. از دهه 60 مجموعه های هذلولوی نقش مهمی را در گسترش سیستم های دینامیکی ایفا کرده است. مجموعه های هذلولوی, مجموعه هایی پایا تحت دینامیک و نیز فشرده هستند که فضای مماسی بر روی آنها به دو زیرفضای پایا که یکی از آنها انقباضی و د...
Background and purpose: Alpha-glucosidase inhibitors are used in treatment of type 2 diabetes because they decrease postprandial hyperglycemia. Consistent use of these drugs has undesirable side effects such as liver toxicity and gastrointestinal symptoms. The purpose of this study was to investigate the inhibitory effect of Ziziphus jujuba and Heracleum persicum on the activity of partial puri...
We study structures of the $0^+$ states $^{13}_\Lambda$C within framework $\alpha+\alpha+\alpha+\Lambda$ four-body orthogonality condition model with Gaussian expansion method. obtain five and compare them low-lying four $^{12}$C. find that $0_1^+$, $0_2^+$ $0_4^+$ correspond to $^{12}$C, respectively. also both $0_3^+$ $0_5^+$ have analogous nature state where additional $\Lambda$ particle cou...
The antiferromagnetic $J_1-J_2$ model is a spin-1/2 chain with isotropic exchange $J_1 > 0$ between first neighbors and $J_2 = \alpha J_1$ second neighbors. supports both gapless quantum phases nondegenerate ground states gapped $\Delta(\alpha) doubly degenerate states. Exact thermodynamics limited to $\alpha 0$, the linear Heisenberg antiferromagnet (HAF). diagonalization of small systems at f...
در ابتدا به طور مختصر ارتباط بین مسائل تغییراتی و معادلات دیفرانسیل را بیان می کنیم. همان طور که می دانیم هر معادله دیفرانسیل را می توان به صورت egin{equation} label{yek} a(u)= 0 end{equation} نوشت، که در آن $ a(u) $ یک عملگر دیفرانسیل معمولی یا جزئی خطی یا غیرخطی و $ u $ مجهول می باشد. برای حل این معادلات و به خصوص معادلات دیفرانسیل جزیی غیرخطی راه حل مشخصی وجود ندارد.حساب تغییر...
Alpha-thalassemia (α-thal) is probably the most prevalent monogenic condition in the world. Deletions are the most common types of mutations in α-thal, followed by point mutations and small insertion/deletion. In the context of national screening program for prevention of thalassemia and hemoglobinopathies in Iran, α-thal carriers have come to more attention. Therefore, the fr...
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