Results 21 to 30 of about 261,851 (366)
Regular Polygon Central Configuration of the Restricted 1 + N-Body Problem
Universe, 2023 We consider the central configurations of the 1+N-body problem, where N bodies are infinitesimal and the remaining one body is dominant. For regular polygon central configurations, we prove that the masses of all the infinitesimal bodies are equal when N
Jian Chen, Peng Bi, Mingfang Yang
doaj +1 more source
Direct S₂₁ Calculation Using Infinitesimal Dipole Modeling
IEEE Access, 2023 The infinitesimal dipole modeling (IDM) technique represents the current density of the antenna under test as an array of infinitesimal dipole moments. Using the IDM concept, complicated structures of antennas and scatterers can be replaced with compact ...
Dal-Jae Yun +3 more
doaj +1 more source
Infinitesimal variations of submanifolds [PDF]
Ensaios Matemáticos, 2020 This paper deals with the subject of infinitesimal variations of Euclidean submanifolds with arbitrary dimension and codimension. The main goal is to establish a Fundamental theorem for these geometric objects. Similar to the theory of isometric immersions in Euclidean space, we prove that a system of three equations for a certain pair of tensors are ...
Marcos Dajczer, Miguel Ibieta Jimenez
openaire +3 more sources
On the Simulation of a Special Class of Time-Inhomogeneous Diffusion Processes
Mathematics, 2021 General methods to simulate probability density functions and first passage time densities are provided for time-inhomogeneous stochastic diffusion processes obtained via a composition of two Gauss–Markov processes conditioned on the same initial state ...
Virginia Giorno, Amelia G. Nobile
doaj +1 more source
Weighted infinitesimal unitary bialgebras on rooted forests and weighted cocycles [PDF]
Pacific Journal of Mathematics, 2018 In this paper, we define a new coproduct on the space of decorated planar rooted forests to equip it with a weighted infinitesimal unitary bialgebraic structure.
Yi Zhang +3 more
semanticscholar +1 more source
Infinitesimal isometries on developable surfaces and asymptotic theories for thin developable shells [PDF]
, 2012 We perform a detailed analysis of first order Sobolev-regular infinitesimal isometries on developable surfaces without affine regions. We prove that given enough regularity of the surface, any first order infinitesimal isometry can be matched to an ...
Marta Lewicka +3 more
core +3 more sources
Non‐crossing annular pairings and the infinitesimal distribution of the goe [PDF]
Journal of the London Mathematical Society, 2018 We present a combinatorial approach to the infinitesimal distribution of the Gaussian orthogonal ensemble (goe). In particular, we show how the infinitesimal moments are described by non‐crossing pairings, but not those of type B .
J. Mingo
semanticscholar +1 more source
Deformation theory of holomorphic Cartan geometries, II
Complex Manifolds, 2022 In this continuation of [4], we investigate the deformations of holomorphic Cartan geometries where the underlying complex manifold is allowed to move. The space of infinitesimal deformations of a flat holomorphic Cartan geometry is computed.
Biswas Indranil +2 more
doaj +1 more source
Infinitesimals without logic [PDF]
Russian Journal of Mathematical Physics, 2010 We introduce the ring of Fermat reals, an extension of the real field containing nilpotent infinitesimals. The construction takes inspiration from Smooth Infinitesimal Analysis (SIA), but provides a powerful theory of actual infinitesimals without any need of a background in mathematical logic.
openaire +5 more sources
The Infinitesimal Moduli Space of Heterotic G2 Systems [PDF]
, 2017 Heterotic string compactifications on integrable G2 structure manifolds Y with instanton bundles $${(V,A), (TY,\tilde{\theta})}$$(V,A),(TY,θ~) yield supersymmetric three-dimensional vacua that are of interest in physics.
Xenia de la Ossa +2 more
semanticscholar +1 more source