Boundary value problem for second order mixed type nonhomogeneous differential equation with two degenerate lines

Fayazov, K. S.; Khudayberganov, Yashin K.

doi:10.29229/uzmj.2019-2-6

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“…Non-convolutional integral representations in Lebesgue space were obtained in [13]. Operator (2) is not convolutional and kernels k i (t) , i = 1, n, do not need to have a monotone majorant, so the well-known results on convergence of convolutional averages almost everywhere ( [12], p. 77-78) are not applicable here.…”

Section: Convergence Almost Everywhere Of Non-convolutional Integral mentioning

confidence: 99%

Convergence Almost Everywhere of Non-convolutional Integral Operators in Lebesgue Spaces

Yakhshiboev¹

2020

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The case of one-dimensional and multidimensional non-convolutional integral operators in Lebesgue spaces is considered in this paper. The convergence in the norm and almost everywhere of non-convolution integral operators in Lebesgue spaces was insufficiently studied. The kernels K ε (x, y) of non-convolutional integral operators do not need to have a monotone majorant, so the well-known results on the convergence almost everywhere of convolutional averages are not applicable here. The kernels K ε (x, y) of nonconvolutional integral operators take into account different behaviors at |y| → 0 and |y| → ∞ depending on ε → 0 (which is important in applications) and cover the situation in the particular case of convolutional and non-convolutional integral operators. We are interested in the behavior of function K ε ϕ as ε → 0 . Theorems on convergence almost everywhere in the case of one-dimensional and multidimensional nonconvolution integral operators in Lebesgue spaces are proved. The theorems proved are more general ones (including for convolutional integral operators) and cover a wide class of kernels.

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Section: Convergence Almost Everywhere Of Non-convolutional Integral mentioning

confidence: 99%

Convergence Almost Everywhere of Non-convolutional Integral Operators in Lebesgue Spaces

Yakhshiboev¹

2020

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Boundary value problem for second order mixed type nonhomogeneous differential equation with two degenerate lines

Cited by 1 publication

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Convergence Almost Everywhere of Non-convolutional Integral Operators in Lebesgue Spaces

Convergence Almost Everywhere of Non-convolutional Integral Operators in Lebesgue Spaces

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