Euclidean Quadratic Forms and ADC Forms I [PDF]
Motivated by classical results of Aubry, Davenport and Cassels, we define the notion of a Euclidean quadratic form over a normed integral domain and an ADC form over an integral domain.
Clark, Pete L.
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A new closed-form formula for calculating a weakly singular static potential integral with linear current source distribution on a triangle [PDF]
The article presents a closed-form formula for solving a weakly singular surface integral with a linear current source distribution associated with the SIE-MoM formulation used for solving electromagnetic (EM) problems.
Anna Grytsko, Piotr Słobodzian
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Remarks on derivations on semiprime rings
We prove that a semiprime ring R must be commutative if it admits a derivation d such that (i) xy+d(xy)=yx+d(yx) for all x, y in R, or (ii) xy−d(xy)=yx−d(yx) for all x, y in R.
Mohamad Nagy Daif, Howard E. Bell
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Analysis of segregated boundary-domain integral equations for mixed variable-coefficient BVPs in exterior domains [PDF]
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 Birkhäuser Boston.Some direct segregated systems of boundary–domain integral equations (LBDIEs) associated with the mixed
B. Hanouzet +17 more
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Numerics of boundary-domain integral and integro-differential equations for BVP with variable coefficient in 3D [PDF]
This is the post-print version of the article. The official published version can be accessed from the links below - Copyright @ 2013 Springer-VerlagA numerical implementation of the direct boundary-domain integral and integro-differential equations ...
A Stroud +19 more
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High-order, Dispersionless "Fast-Hybrid" Wave Equation Solver. Part I: $\mathcal{O}(1)$ Sampling Cost via Incident-Field Windowing and Recentering [PDF]
This paper proposes a frequency/time hybrid integral-equation method for the time dependent wave equation in two and three-dimensional spatial domains.
Anderson, Thomas G. +2 more
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Integrally Closed Subrings of an Integral Domain [PDF]
Let D be an integral domain with identity having quotient field K. This paper gives necessary and sufficient conditions on D in order that each integrally closed subring of D should belong to some subclass of the class of integrally closed domains; some of the subclasses considered are the completely integrally closed domains, Prufer domains, and ...
Gilmer, R., Mott, J.
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On locally divided integral domains and CPI-overrings
It is proved that an integral domain R is locally divided if and only if each CPI-extension of ℬ (in the sense of Boisen and Sheldon) is R-flat (equivalently, if and only if each CPI-extension of R is a localization of R).
David E. Dobbs
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Exponents, symmetry groups and classification of operator fractional Brownian motions [PDF]
Operator fractional Brownian motions (OFBMs) are zero mean, operator self-similar (o.s.s.), Gaussian processes with stationary increments. They generalize univariate fractional Brownian motions to the multivariate context.
Didier, Gustavo, Pipiras, Vladas
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Generalization to The AMK Integral Transform and Its Applications [PDF]
Since the proposal of Laplace to integral transformation in 1780, many integral transformations have been proposed. Some are based on Laplace, and others are totally independent.
Mohanad Salman, Qin Zhao
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