Results 111 to 120 of about 6,568 (311)

Integrability of the limit model for a vacuum diode and a solution to the singular boundary-value problem

Electronic Journal of Differential Equations, 2016
This article concerns singular boundary-value problems for a vacuum diode model. We prove the integrability of a system of nonlinear differential equations and construct a complete system of the first integrals; thus developing a method for solving ...
Alexander A. Kosov, Edward I. Semenov, Alexander V. Sinitsyn   +2 more
doaj  

Logarithmic Bounds for Oscillatory Singular Integrals on Hardy Spaces

Journal of Function Spaces, 2016
We establish a logarithmic bound for oscillatory singular integrals with quadratic phases on the Hardy space H1(Rn). The logarithmic rate of growth is the best possible.
Hussain Al-Qassem, Leslie Cheng, Yibiao Pan   +2 more
doaj   +1 more source

On fully discrete collocation methods for solving weakly singular integral equations

Mathematical Modelling and Analysis, 2009
A popular class of methods for solving weakly singular integral equations is the class of piecewise polynomial collocation methods. In order to implement those methods one has to compute exactly certain integrals that determine the linear system to be ...
Raul Kangro, Inga Kangro
doaj   +1 more source

Numerical evaluation of certain strongly singular integrals

, 2014
Interpolatory quadrature rules have been well studied and widely applied for numerical integration in the presence of simple singularities. However, these rules have been used less for strongly singular integrals due to the fact that divergence and ...
CRISCUOLO, GIULIANA
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Singular integrals and function spaces

, 2013
The main aim of this thesis is to study the boundedness of some singular integrals on various function spaces. The main results of this thesis are presented in three parts.
The Anh Bui (12310766)
core   +1 more source

Calderón-Zygmund singular integrals in central Morrey-Orlicz spaces

, 2020
We prove the strong-type and weak-type estimates for the Calderón–Zygmund singular integrals on central Morrey–Orlicz and weak central Morrey–Orlicz spaces defined in our earlier paper [26].
Maligranda, Lech, Matsuoka, Katsuo
core   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Exact Quadrature of Singular and Nearly Singular Potential Integrals [PDF]

, 2007
R.D. Graglia, GRAGLIA, Roberto, Graglia R.D, G. Lombardi, Lombardi, Guido   +4 more
core   +1 more source

Singular Integrals and Feller Semigroups

, 2003
発表会議： Singular Integrals and Related Topics 開催場所： 東京大学大学院数理科学研究科 開催時期： 2003年1月24日～1月26日 講演題目： Singular integrals and Feller semigroups 講演日： 2003年1月25日conference ...
TAIRA Kazuaki
core