Results 61 to 70 of about 2,341,415 (375)
The authors have previously studied two - dimensional Fredholm integral operators with homogeneous kernels of fiber - singular type. For this class of operators, the symbolic calculus is built using the theory of biloc al operators by V.
Vladimir Mikhaylovich Deundyak+1 more
doaj +1 more source
New estimates for the maximal singular integral [PDF]
In this paper we pursue the study of the problem of controlling the maximal singular integral $T^{*}f$ by the singular integral $Tf$. Here $T$ is a smooth homogeneous Calder\'on-Zygmund singular integral of convolution type.
Centre de Recerca Matemàtica+4 more
core +3 more sources
Singular integrals in the Cesàro sense [PDF]
The existence of the singular integral ∫K(x, y)f(y)dy associated to a Calderón-Zygmund kernel where the integral is understood in the principal value sense TF(x)=limε→0+∫|x−y|>εK(x, y)f(y)dy has been well studied. In this paper we study the existence of the above integral in the Cesàro-α sense.
Bernardis, A.L., Martin-Reyes, F.J.
openaire +4 more sources
Some new inequalities with weakly singular integral kernel are developed, which generalize some known inequalities and can be used in the qualitative and quantitative analysis of the solutions to certain fractional differential equations.
R. Xu, F. Meng
semanticscholar +1 more source
Solutions of singular integral equations
Qualitative behavior of solutions of possibly singluar integral equations is studied. It includes properties such as positivity, boundedness and monotonicity of the solutions of the infinite interval.
Rina Ling
doaj +1 more source
Non-homogeneous impulsive time fractional heat conduction equation
This article provides a concise exposition of the integral transforms and its application to singular integral equation and fractional partial differential equations.
Arman Aghili
doaj +1 more source
Rank one perturbations and singular integral operators [PDF]
We consider rank one perturbations $A_\alpha=A+\alpha(\cdot,\varphi)\varphi$ of a self-adjoint operator $A$ with cyclic vector $\varphi\in\mathcal H_{-1}(A)$ on a Hilbert space $\mathcal H$. The spectral representation of the perturbed operator $A_\alpha$
Liaw, Constanze, Treil, Sergei
core +2 more sources
Lagrangian flows for vector fields with gradient given by a singular integral [PDF]
We prove quantitative estimates on flows of ordinary differential equations with vector field with gradient given by a singular integral of an L1 function.
F. Bouchut, Gianluca Crippa
semanticscholar +1 more source
Integrable cross-field generation based on imposed singularity configuration -- the 2D manifold case -- [PDF]
This work presents the mathematical foundations for the generation of integrable cross-field on 2D manifolds based on user-imposed singularity configuration. In this paper, we either use singularities that appear naturally, e.g., by solving a non-linear problem, or use as an input user-defined singularity pattern, possibly with high valence ...
arxiv
Regularity of the minimiser of one-dimensional interaction energies
We consider both the minimisation of a class of nonlocal interaction energies over non-negative measures with unit mass and a class of singular integral equations of the first kind of Fredholm type. Our setting covers applications to dislocation pile-ups,
Kimura, M., van Meurs, P.
core +1 more source