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In this technical report we study the convergence of Parareal for 2D incompressible flow around a cylinder for different viscosities. Two methods are used as fine integrator: backward Euler and a fractional step method. It is found that…

计算工程、金融与科学 · 计算机科学 2015-09-15 Andreas Kreienbuehl , Arne Naegel , Daniel Ruprecht , Andreas Vogel , Gabriel Wittum , Rolf Krause

By systematically applying ten well-known and inequivalent two-part relations between hypergeometric sums 3F2(...|1) to the published database of all such sums, 62 new sums are obtained. The existing literature is summarized, and many…

经典分析与常微分方程 · 数学 2010-11-23 Michael Milgram

In 2017, He [Proc. Amer. Math. Soc. 145 (2017), 501--508] established two spuercongruences on truncated hypergeometric series and further proposed two related conjectures. Subsequently, Liu [Results Math. 72 (2017), 2057--2066] extended…

组合数学 · 数学 2021-11-16 Chuanan Wei

In this paper, we prove a convergence theorem for sequences of Einstein Yang-Mills systems on $U(1) $-bundles over closed $n$-manifolds with some bounds for volumes, diameters, $L^{2}$-norms of bundle curvatures and $L^{\frac{n}{2}}$-norms…

微分几何 · 数学 2012-01-04 Hongliang Shao

In this paper, we first investigate the integral curvature condition to extend the mean curvature flow of submanifolds in a Riemannian manifold with codimension $d\geq1$, which generalizes the extension theorem for the mean curvature flow…

微分几何 · 数学 2011-04-07 Kefeng Liu , Hongwei Xu , Fei Ye , Entao Zhao

Our purpose in this present paper is to investigate generalized integration formulas containing the extended generalized hypergeometric function and obtained results are expressed in terms of extended hypergeometric function. Certain…

经典分析与常微分方程 · 数学 2017-06-08 G. Rahman , A. Ghaffar , K. S. Nisar , S. Mubeen

Addition formulas exist in trigonometric functions. Double-angle and half-angle formulas can be derived from these formulas. Moreover, the relation equation between the trigonometric function and the hyperbolic function can be derived using…

泛函分析 · 数学 2020-04-28 Kazunori Shinohara

We show a connection formula for the $q$-confluent hypergeometric functions ${}_2\varphi_1(a,b;0;q,x)$. Combining our connection formula with Zhang's connection formula for ${}_2\varphi_0(a,b;-;q,x)$, we obtain the connection formula for…

经典分析与常微分方程 · 数学 2013-07-29 Takeshi Morita

We find a four-dimensional N=1 gauge theory which flows to the minimal interacting N=2 superconformal field theory, the Argyres-Douglas theory, in the infrared up to the extra free chiral multiplets. The gauge theory is obtained from a…

高能物理 - 理论 · 物理学 2017-04-19 Kazunobu Maruyoshi , Jaewon Song

In 2011, Luc introduced parametric duality for multiple objective linear programs. He showed that geometric duality, introduced in 2008 by Heyde and L\"ohne, is a consequence of parametric duality. We show the converse statement: parametric…

最优化与控制 · 数学 2018-06-11 Daniel Dörfler , Andreas Löhne

Let $n > m \geq 1$ be integers such that $n+ m \geq 4$ is even. We prove the existence, in the volume aspect, of exceptional Maass forms on compact quotients of the hyperbolic Grassmannian of signature $(n,m)$. The method builds upon the…

数论 · 数学 2025-01-30 Thibaut Menes

R. K\"ustner proved in his 2002 paper that the function $w_{a,b,c}(z)=$ $F(a+1,b;c;z)/F(a,b;c;z)$ maps the unit disk $|z|<1$ onto a domain convex in the direction of the imaginary axis under some condition on the real parameters $a,b,c.$…

复变函数 · 数学 2022-02-10 Toshiyuki Sugawa , Li-Mei Wang

We study Leinster's notion of magnitude for a compact metric space. For a smooth, compact domain $X\subset \mathbb{R}^{2m-1}$, we find geometric significance in the function $\mathcal{M}_X(R) = \mathrm{mag}(R\cdot X)$. The function…

度量几何 · 数学 2023-01-31 Heiko Gimperlein , Magnus Goffeng

Hypergeometric functions of complex matrices were introduced by James in multivariate statistics. These special functions play many roles in random matrix theory. The main goal of this paper is to suggest a new use for them as holomorphic…

组合数学 · 数学 2024-10-08 Jonathan Novak

Integral representations of hypergeometric functions proved to be a very useful tool for studying their properties. The purpose of this paper is twofold. First, we extend the known representations to arbitrary values of the parameters and…

经典分析与常微分方程 · 数学 2016-10-06 D. Karp , J. L. López

The n-dimensional hypergeometric integrals associated with a hypersphere arrangement are formulated by the pairing of n-dimensional twisted cohomology and its dual. Under the condition of general position there are stated some results which…

微分几何 · 数学 2017-09-28 Kazuhiko Aomoto , Yoshinori Machida

Let p be an odd prime. In 1984, Greene introduced the notion of hypergeometric functions over finite fields. Special values of these functions have been of interest as they are related to the number of F_p points on algebraic varieties and…

数论 · 数学 2015-06-26 Robert Osburn , Carsten Schneider

In this paper, using the theory of the so-called fractional calculus we show that it is possible to easily obtain the solutions for the confluent hypergeometric equation. Our approach is to be compared with the standard one (Frobenius)…

数学物理 · 物理学 2016-12-23 Fabio G. Rodrigues , Edmundo C. Oliveira

The Magnus series is an infinite series which arises in the study of linear ordinary differential equations. If the series converges, then the matrix exponential of the sum equals the fundamental solution of the differential equation. The…

经典分析与常微分方程 · 数学 2008-07-09 Per Christian Moan , Jitse Niesen

We give a systematic and unified discussion of various classes of hypergeometric type equations: the hypergeometric equation, the confluent equation, the F_1 equation (equivalent to the Bessel equation), the Gegenbauer equation and the…

经典分析与常微分方程 · 数学 2015-06-15 Jan Dereziński