Results 21 to 30 of about 3,475 (246)

Meanders: exact asymptotics [PDF]

open access: yesNuclear Physics B, 2000
We conjecture that meanders are governed by the gravitational version of a c=-4 two-dimensional conformal field theory, allowing for exact predictions for the meander configuration exponent =\sqrt{29}(\sqrt{29}+\sqrt{5})/12, and the semi-meander exponent {\bar }=1+\sqrt{11}(\sqrt{29}+\sqrt{5})/24.
Di Francesco, P.   +2 more
openaire   +3 more sources

Application of uniform asymptotics to the fifth Painlevé transcendant

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We apply the uniform asymptotics method to the fifth Painlevé transcendants, find its asymptotics of the form y=−1+t−1/2A(t) as t→∞ along the positive t-axis, and obtain the corresponding monodromy data.
Youmin Lu, Zhoude Shao
doaj   +1 more source

On the number of partitions of a number into distinct divisors [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
Let p_{dsd}(n) be the number of partitions of n into distinct squarefree divisors of n. In this note, we find a lower bound for p_{dsd}(n), as well as a sequence of n for which p_{dsd} (n) is unusually large.
Noah Lebowitz-Lockard, Joseph Vandehey
doaj   +1 more source

On the cardinality of layers in some partially ordered sets

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2020
In this paper, we explicitly calculated additional terms of cardinality asymptotics of layers in the n-dimensional k-valued lattice Enk for odd k as n → ∞. The main term had been previously determined by V.B.
T.V. Andreeva, Yu.S. Semenov
doaj   +1 more source

Indecomposable permutations with a given number of cycles [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
A permutation $a_1a_2 \ldots a_n$ is $\textit{indecomposable}$ if there does not exist $p \lt n$ such that $a_1a_2 \ldots a_p$ is a permutation of $\{ 1,2, \ldots ,p\}$.
Robert Cori, Claire Mathieu
doaj   +1 more source

Asymptotics of density distributions, momentum distributions and form factors of three-nucleon nuclei [PDF]

open access: yesЯдерна фізика та енергетика, 2010
The structure functions of three-nucleon nuclei 3H and 3He are investigated, and asymptotics of density distributions of nucleons at large distances are established using bound state wave functions with high precision.
D. V. Piatnytskyi, I. V. Simenog
doaj  

Asymptotics for Solutions of Harmonic Oscillator with Integral Perturbation

open access: yesМоделирование и анализ информационных систем, 2017
We construct the asymptotics for solutions of a harmonic oscillator with integral perturbation when the independent variable tends to infinity. The specific feature of the considered integral perturbation is an oscillatory decreasing character of its ...
Pavel N. Nesterov
doaj   +1 more source

Calculation of the deflection of an arched truss with suspended elements depending on the number of panels

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2020
The aim of the work - to propose a scheme and analytical calculation of a statically definable planar truss with a suspended lower belt. Methods. The formula for the dependence of the deflection of the truss under the action of a uniform load on the ...
Mikhail N. Kirsanov
doaj   +1 more source

Uniform Approximation to the Solution of a Singularly Perturbed Boundary Value Problem with an Initial Jump

open access: yesMathematics, 2020
In this study, a third-order linear integro-differential equation with a small parameter at two higher derivatives was considered. An asymptotic expansion of the solution to the boundary value problem for the considered equation is constructed by ...
Assiya Zhumanazarova, Young Im Cho
doaj   +1 more source

Justification of Direct Scheme for Asymptotic Solving Three-Tempo Linear-Quadratic Control Problems under Weak Nonlinear Perturbations

open access: yesAxioms, 2022
The paper deals with an application of the direct scheme method, consisting of immediately substituting a postulated asymptotic solution into a problem condition and determining a series of control problems for finding asymptotics terms, for asymptotics ...
Galina Kurina, Margarita Kalashnikova
doaj   +1 more source

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