Results 71 to 80 of about 5,402 (301)
On the Jordan kernel of a universal enveloping algebra
Journal of Algebra, 1989 AbstractFirst it is shown that the Jordan kernel Jk(D(L)) of the division ring of quotients D(L) of the universal enveloping algebra U(L) of a finite-dimensional Lie algebra L is isomorphic to the group ring of the free Abelian group of weights of L in D(L) over a Weyl algebra Am(Z), where Z is a polynomial ring over the center Z(D(L)) of D(L).
Theo Moons, Ai Ooms
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First‐order Sobolev spaces, self‐similar energies and energy measures on the Sierpiński carpet
Communications on Pure and Applied Mathematics, EarlyView.Abstract For any p∈(1,∞)$p \in (1,\infty)$, we construct p$p$‐energies and the corresponding p$p$‐energy measures on the Sierpiński carpet. A salient feature of our Sobolev space is the self‐similarity of energy. An important motivation for the construction of self‐similar energy and energy measures is to determine whether or not the Ahlfors regular ...
Mathav Murugan, Ryosuke Shimizu
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Filtration enlargement‐based time series forecast in view of insider trading
Journal of Economic Surveys, Volume 37, Issue 1, Page 112-140, February 2023., 2023 Abstract This survey reviews filtration enlargement models in view of insider trading. Although filtration enlargement aptly models insiders' informational advantage, the theoretical results have not attracted the attention of the empiricists, owing mainly to the lack of a bridge transforming the results to testable hypotheses, and/or the absence of ...
Luke M. Bennett, Wei Hu
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Dipole symmetry breaking and fractonic Nambu-Goldstone mode
SciPost Physics Core, 2023 We introduce a family of quantum field theories for fields carrying monopole and dipole charges. In contrast to previous realizations, fields have quadratic two-derivative kinetic terms.
Evangelos Afxonidis, Alessio Caddeo, Carlos Hoyos, Daniele Musso
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Congruence kernels of orthomodular implication algebras
Discrete Mathematics, 2008 AbstractAbstracting from certain properties of the implication operation in Boolean algebras leads to so-called orthomodular implication algebras. These are in a natural one-to-one correspondence with families of orthomodular lattices. It is proved that congruence kernels of orthomodular implication algebras are in a natural one-to-one correspondence ...
Radomír Halaš +2 more
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Clifford algebra multivectors and kernels for melanoma classification
Mathematical Methods in the Applied Sciences, 2021 Melanoma is a deadly skin disease. Availability of digital skin lesion datasets ease the exploration of ample classification studies. Both theoretical and heuristics improvements are achieved thanks to these new datasets. Being one of many high‐level feature‐driven classification methods, support vector machines (SVMs) are widely used in the literature
Mutlu Akar +2 more
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Communications on Pure and Applied Mathematics, EarlyView.Abstract We consider the global dynamics of finite energy solutions to energy‐critical equivariant harmonic map heat flow (HMHF) and radial nonlinear heat equation (NLH). It is known that any finite energy equivariant solutions to (HMHF) decompose into finitely many harmonic maps (bubbles) separated by scales and a body map, as approaching to the ...
Kihyun Kim, Frank Merle
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Short Wavelength Limit of the Dynamic Matsubara Local Field Correction
Contributions to Plasma Physics, EarlyView.ABSTRACT We investigate the short wavelength limit of the dynamic Matsubara local field correction G˜q,zl$$ \tilde{G}\left(\mathbf{q},{z}_l\right) $$ of the uniform electron gas based on direct ab initio path integral Monte Carlo (PIMC) results over an unprecedented range of wavenumbers, q≲20qF$$ q\lesssim 20{q}_{\mathrm{F}} $$, where qF$$ {q}_{\mathrm{
Tobias Dornheim +3 more
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Journal of Time Series Analysis, Volume 44, Issue 1, Page 93-124, January 2023., 2023 Count time series are widely encountered in practice. As with continuous valued data, many count series have seasonal properties. This article uses a recent advance in stationary count time series to develop a general seasonal count time series modeling paradigm.
Jiajie Kong, Robert Lund
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Energy Science &Engineering, EarlyView.ABSTRACT This attempt examines the heat transfer enhancement from unsteady bioconvective Maxwell nanofluid flow under the incidence of solar radiation influenced by viscous dissipation and chemical reaction through a porous medium. The nanofluid contains silver and titanium alloy hybrid nanoparticles with gyrotactic micro‐organisms in ethylene glycol ...
Bhupendra K. Sharma +4 more
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