Results 1 to 10 of about 56 (54)

The use of mobile phone surveys for rapid mortality monitoring: A national study in Burkina Faso [PDF]

Demographic Research
BACKGROUND: In low- and middle-income countries, death registration remains low, and mortality estimation is heavily based on surveys and censuses conducted through face-to-face interviews.
Kassoum Dianou, Abdramane B. Soura, Bruno Lankoandé, Hervé Bassinga, Shammi Luhar, Ashira Menashe-Oren, Kelly McCain, Malebogo Tlhajoane, Georges Reniers, Bruno Masquelier   +9 more
doaj   +3 more sources

Pöschl-Teller potentials based solution to Hilbert's tenth problem

Ingeniería y Ciencia, 2006
Los hipercomputadores computan funciones o números, o en general solucionan problemas que no pueden ser computados o solucionados por una máquina de Turing. Se presenta una adaptación del algoritmo cuántico hipercomputacional propuesto por Tien D.
Andrés Sicard, Juan Ospina
doaj   +1 more source

On the Riemann-Hilbert problem in multiply connected domains

Open Mathematics, 2016
We proved the existence of multivalent solutions with the infinite number of branches for the Riemann-Hilbert problem in the general settings of finitely connected domains bounded by mutually disjoint Jordan curves, measurable coefficients and measurable
Ryazanov Vladimir
doaj   +1 more source

Infinite dimension of solutions of the Dirichlet problem

Open Mathematics, 2015
It is proved that the space of solutions of the Dirichlet problem for the harmonic functions in the unit disk with nontangential boundary limits 0 a.e. has the infinite dimension.
Ryazanov Vladimir
doaj   +1 more source

Genus two KdV soliton gases and their long-time asymptotics

Forum of Mathematics, Sigma
This paper employs the Riemann-Hilbert problem and nonlinear steepest descent method of Deift-Zhou to provide a comprehensive analysis of the asymptotic behavior of the genus two Korteweg-de Vries soliton gases.
Deng-Shan Wang, Dinghao Zhu, Xiaodong Zhu   +2 more
doaj   +1 more source

On an Example of Derivative Nonlinear Schrödinger Equation with D2 Reduction [PDF]

, 2019
[Gerdjikov V. S.; Герджиков В. С.]; [Stefanov A. A.; Stefanov A. Aleksander; Стефанов А.
Stefanov, A. A., Gerdjikov, V. S.
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Long-time asymptotic behavior for the Hermitian symmetric space derivative nonlinear Schrödinger equation

Advanced Nonlinear Studies
Resorting to the spectral analysis of the 4 × 4 matrix spectral problem, we construct a 4 × 4 matrix Riemann–Hilbert problem to solve the initial value problem for the Hermitian symmetric space derivative nonlinear Schrödinger equation.
Chen Mingming, Geng Xianguo, Liu Huan
doaj   +1 more source

New Types of Two Component NLS-Type Equations [PDF]

, 2016
[Gerdjikov V. S.; Герджиков В. С.]; [Stefanov A. A.; Stefanov A. Aleksander; Стефанов А.
Stefanov, A. A., Gerdjikov, V. S.
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Boussinesq's equation for water waves: Asymptotics in Sector I

Advances in Nonlinear Analysis
In a recent study, we showed that the large (x,t)\left(x,t) behavior of a class of physically relevant solutions of Boussinesq’s equation for water waves is described by ten main asymptotic sectors.
Charlier Christophe, Lenells Jonatan
doaj   +1 more source

Riemann-Hilbert Problems with Canonical Normalization and Families of Commuting Operators [PDF]

, 2012
2010 Mathematics Subject Classification: 35Q15, 31A25, 37K10, 35Q58.We start with a Riemann-Hilbert Problems (RHP) with canon- ical normalization whose sewing functions depends on several additional vari- ables.
Gerdjikov, V. S.
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