نتایج جستجو برای: gamma function
تعداد نتایج: 1319148 فیلتر نتایج به سال:
The objective of this paper is to define and study new generalized extended gamma functions. A generalized extended gamma probability density function involving generalized hypergeometric function is also defined. Closed form representations of the generalized gamma functions and the moment generating function are derived in the form of H-function using inverse Mellon transform techniques. Inco...
We consider a generalization of the gamma function which we term as lambda analogue or $\lambda$-gamma and further, establish some its accompanying properties. For particular case when $\lambda=1$, results established reduce to involving classical function. The techniques employed in proving our are analytical nature.
در این پژوهش خواص الکترونیکی و اپتیکی ترکیبga1-xalxas به ازای x=0, 0.25, 0.75, 1 با استفاده از اصول اولیه و روش نظریه تابعی چگالی مطالعه شده است. این بررسی ها با استفاده از محاسبه انرژی کل و از طریق روش امواج تخت تقویت شده خطی (fp-lapw) که بر پایه نظریه تابعی چگالی dft هوهنبرگ-کوهن شم استوار است، به کمک کد wien2k صورت گرفته است. در ارتباط با برهمکنش های پتانسیل همبستگی تبادلی از تقریب چگالی...
Objectives: Autism Spectrum Disorder (ASD) is a group of neurodevelopment syndromes with impairments in social communications and restrictive or repetitive behaviors. Neurofeedback is a new method that may regulate neuro and metabolic function in brain. This study is semi-experimental, with pre and post test. Methods: In 26 children with ASD, 40 sessions of Neurofeedback were done. Brain...
We consider corner scattering for the operator $\nabla \cdot \gamma(x)\nabla +k^2\rho(x)$ in $\mathbb{R}^2$, with $\gamma$ a positive definite symmetric matrix and $\rho$ scalar function. A is referred to one that on boundary of (compact) support $\gamma(x)-I$ or $\rho(x)-1$, where $I$ stands identity matrix. assume function small neighborhood corner. show any admissible incident field will be ...
In this paper we propose a utility function and obtain the Bayese stimate and the optimum sample size under this utility function. This utility function is designed especially to obtain the Bayes estimate when the posterior follows a gamma distribution. We consider a Normal with known mean, a Pareto, an Exponential and a Poisson distribution for an optimum sample size under the propose...
Selection of the appropriate distribution function and estimation of its parameters are two fundamental steps in the accurate estimation of flood magnitude. This study relied on the concept of optimization by meta heuristic algorithms to improve the results obtained from the conventional methods of parameter estimation, such as maximum likelihood (ML), moments (MOM) and probability weighted mom...
فرض کنید g یک گروه متناهی باشد. گراف مولد (gamma(g گرافی با مجموعه رئوس عناصر غیر همانی g است که در آن دو راس a,b مجاور هستند اگر و تنها اگر زیرگروه تولید شده توسط آنها برابر g باشد. در این سخنرانی گراف مولد یک گروه را بررسی می کنیم به ویژه گراف مولد حاصل ضرب پیچشی s توسط { c-{m را بررسی می کنیم که در آن s گروه ساده متناهی و {c-{m گروه دوری از مرتبه m است. عدد صحیح مثبت m را طوری تعیین می کنیم ...
The antiferromagnetic quantum Ising chain has a critical point which belongs to the universality class of transverse model (TIM). When longitudinal field ($h$) is switched on, phase transition preserved, turns first-order for $h/\Gamma \to \infty$, $\Gamma$ being strength field. Here we will re-examine properties along line. During block renormalization group calculation, TIM fixed $h/\Gamma>0$...
We consider sums of the form $\sum \phi(\gamma)$, where $\phi$ is a given function, and $\gamma$ ranges over ordinates nontrivial zeros Riemann zeta-function in interval. show how numerical estimation such can be accelerated by simple device, give examples involving both convergent divergent infinite sums.
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