Results 231 to 240 of about 624,218 (290)
The challenges of <i>in situ</i> detection for micro- and nanoplastics. [PDF]
Eco Environ HealthLi Y, Zhang J, Peng C, Xu L.
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Boletín de la Sociedad Matemática Mexicana, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
O. E. Yaremko, K. R. Zababurin
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
O. E. Yaremko, K. R. Zababurin
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Analysis, 1986
Summary: Let a probability space (\(\Omega\),\(\Sigma\),P) and sequences of r.v.'s \((X_ n(\omega))_ 1^{\infty}\), \((Y_ n(\omega))_ 1^{\infty}\), and a matrix of r.v.'s \(A=(A_{nk}(\omega))^{\infty}_{n,k=1}\) be given. We ask for the exact conditions for A which guarantee that each sequence \((X_ n(\omega))_ 1^{\infty}\), which is a.s. an element of \(
Stadtmüller, U., Trautner, Rolf
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Summary: Let a probability space (\(\Omega\),\(\Sigma\),P) and sequences of r.v.'s \((X_ n(\omega))_ 1^{\infty}\), \((Y_ n(\omega))_ 1^{\infty}\), and a matrix of r.v.'s \(A=(A_{nk}(\omega))^{\infty}_{n,k=1}\) be given. We ask for the exact conditions for A which guarantee that each sequence \((X_ n(\omega))_ 1^{\infty}\), which is a.s. an element of \(
Stadtmüller, U., Trautner, Rolf
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Matrix differential transformations
Applicable Analysis, 1997Differential transformations can be used in order to transform solutions of a simple differential equation into solutions of a more complicated differential equation. That way one gets explicit representations for solutions of some special differential equations.
H. Florian, J. Püngel, W. Tutschke
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Applied Mathematics and Computation, 2011
Some properties of the matricial expression of the Fourier-Wiener transform are considered. Here the referred properties are a composition formula, Parceval formula and an inversion formula which is the extension an unitary explicit integral representation of the second quantization for one integral operator of the Wiener transform.
Hayek, N. +2 more
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Some properties of the matricial expression of the Fourier-Wiener transform are considered. Here the referred properties are a composition formula, Parceval formula and an inversion formula which is the extension an unitary explicit integral representation of the second quantization for one integral operator of the Wiener transform.
Hayek, N. +2 more
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Periodica Mathematica Hungarica, 1982
Let \(\delta\) be the space of all sequences \((x_ n)_{n\in {\mathbb{N}}}\) for which \(| x_ n|^{1/n}\to 0\) as \(n\to \infty\). The matrices \(A=[a_{ij}]_{i,j\in {\mathbb{N}}}\) are characterized which define a matrix transformation \(A:\ell^ 1\to \delta\). The main theorem and its proof are improvements of results of \textit{K. C. Rao}, Glasg.
Gupta, M., Kamthan, P. K.
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Let \(\delta\) be the space of all sequences \((x_ n)_{n\in {\mathbb{N}}}\) for which \(| x_ n|^{1/n}\to 0\) as \(n\to \infty\). The matrices \(A=[a_{ij}]_{i,j\in {\mathbb{N}}}\) are characterized which define a matrix transformation \(A:\ell^ 1\to \delta\). The main theorem and its proof are improvements of results of \textit{K. C. Rao}, Glasg.
Gupta, M., Kamthan, P. K.
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Group Convolutions and Matrix Transforms
SIAM Journal on Algebraic Discrete Methods, 1987Given a finite group G (possibly noncommutative) and a field \({\mathbb{F}}\), group convolutions are constructed based on the group algebra of G over \({\mathbb{F}}\). Matrices with entries in the group algebra are constructed so that they have a convolution property relative to G.
Eberly, David, Hartung, Paul
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