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相关论文: Computing Perelman's nu-functional

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There are ten chapters in this dissertation, which focuses on nine contents: growth estimates for a class of subharmonic functions in the half plane; growth estimates for a class of subharmonic functions in the half space; a generalization…

泛函分析 · 数学 2009-06-10 Guoshuang Pan

In this article, we achieved several non-naturally reductive Einstein metrics on exceptional simple Lie groups, which are formed by the decomposition arising from general Wallach spaces. By using the decomposition corresponding to the two…

微分几何 · 数学 2017-01-16 Huibin Chen , Zhiqi Chen , ShaoQiang Deng

We calculate the second order derivatives of the Ronkin function in the case of an affine linear polynomial in three variables and give an expression of them in terms of complete elliptic integrals and hypergeometric functions. This gives a…

复变函数 · 数学 2013-06-27 Johannes Lundqvist

In this article we compute a discrete mean value of the derivative of the Riemann zeta function. This mean value will be important for several applications concerning the size of $\zeta'(\rho)$ where $\zeta(s)$ is the Riemann zeta function…

数论 · 数学 2007-06-13 Nathan Ng

In this article, we study four-dimensional complete gradient shrinking Ricci solitons. We prove that a four-dimensional complete gradient shrinking Ricci soliton satisfying a pointwise condition involving either the self-dual or…

微分几何 · 数学 2024-03-12 Huai-Dong Cao , Ernani Ribeiro , Detang Zhou

A representation of solutions of the one-dimensional Dirac equation is obtained. The solutions are represented as Neumann series of Bessel functions. The representations are shown to be uniformly convergent with respect to the spectral…

经典分析与常微分方程 · 数学 2026-02-27 Emmanuel Roque , Sergii M. Torba

Properties satisfied by the moments of the partial non-central chi-square distribution function, also known as Nuttall Q-functions, and methods for computing these moments are discussed in this paper. The Nuttall Q-function is involved in…

经典分析与常微分方程 · 数学 2013-06-10 Amparo Gil , Javier Segura , Nico M. Temme

A polynomial counterpart of the Seiberg-Witten invariant associated with a negative definite plumbed 3-manifold has been proposed by earlier work of the authors. It is provided by a special decomposition of the zeta-function defined by the…

几何拓扑 · 数学 2018-09-05 Tamás László , Zsolt Szilágyi

The Euler-Mascheroni constant is calculated by three novel representations over these sets respectively: 1) Tur\'an moments, 2) coefficients of Jensen polynomials for the Taylor series of the Riemann Xi function at s=1/2+i.t and 3) even…

综合数学 · 数学 2021-12-22 Nikos Mantzakouras , Carlos López

In this paper, we prove some classification results for four-dimensional gradient Ricci solitons. For a four-dimensional gradient shrinking Ricci soliton with $div^4Rm^\pm=0$, we show that it is either Einstein or a finite quotient of…

微分几何 · 数学 2019-04-12 Fei Yang , Liangdi Zhang

We derive new approximate representations of the Lommel functions in terms of the Scorer function and approximate representations of the first derivative of the Lommel functions in terms of the derivative of the Scorer function. Using the…

经典分析与常微分方程 · 数学 2014-10-16 Nadezhda Aleksandrova

Special values of the Lommel functions allow the calculation of Fresnel like integrals. These closed form expressions along with their asymptotic values are reported.

经典分析与常微分方程 · 数学 2019-01-14 Bernard J. Laurenzi

We study the interplay between recurrences for zeta related functions at integer values, `Minor Corner Lattice' Toeplitz determinants and integer composition based sums. Our investigations touch on functional identities due to Ramanujan and…

数论 · 数学 2012-04-25 Matthew C. Lettington

Motivated by the general problem of extending the classical theory of holomorphic functions of a complex variable to the case of quater- nion functions, we give a notion of an H-derivative for functions of one quaternion variable. We show…

复变函数 · 数学 2012-03-27 Omar Dzagnidze

We enlarge the area of applicability of the Bellman function method to estimates in the spirit of the John--Nirenberg inequality abandoning certain convexity assumptions. As an application, we consider a characteristic of a function that is…

经典分析与常微分方程 · 数学 2024-04-03 Egor Dobronravov , Dmitriy Stolyarov , Pavel Zatitskii

We solve the Einstein equations for the 2+1 dimensions with and without scalar fields. We calculate the entropy, Hawking temperature and the emission probabilities for these cases. We also compute the Newman-Penrose coefficients for…

广义相对论与量子宇宙学 · 物理学 2015-06-25 M. Hortacsu , H. T. Ozcelik , B. Yapiskan

q-Neumann function of integer order N_n(x,q) is obtained and some of its properties are given. q-Psi function which is used in deriving N_n(x,q) is also introduced and some of its properties are presented.

量子代数 · 数学 2007-05-23 H. Ahmedov , I. H. Duru

Based on the connection between Tsallis nonextensive statistics and fractional dimensional space, in this work we have introduced, with the aid of Verlinde's formalism, the Newton constant in a fractal space as a function of the…

高能物理 - 理论 · 物理学 2015-06-17 Everton M. C. Abreu , Jorge Ananias Neto , Cresus F. L. Godinho

We determine a connection between the weight of a Boolean function and the total weight of its first-order derivatives. The relationship established is used to study some cryptographic properties of Boolean functions. We establish a…

密码学与安全 · 计算机科学 2023-05-02 Augustine Musukwa

We describe methods for computing the Kummer function $U(a,b,z)$ for small values of $z$, with special attention to small values of $b$. For these values of $b$ the connection formula that represents $U(a,b,z)$ as a linear combination of…

经典分析与常微分方程 · 数学 2015-09-18 A. Gil , J. Segura , N. M. Temme