Results 11 to 20 of about 2,160,854 (336)

Growth trap of public freight villages in Europe

open access: yesCogent Business & Management, 2022
Freight Villages (FV) are important nodes in supply chains and can be seen as industrial and trade zones with good connections to transport networks, such as road, rail and air, offering basic logistics services, such as warehousing and transshipment, as
Yilmaz Uygun, Mohammad Niyayesh
doaj   +1 more source

Integral group ring of the first Mathieu simple group [PDF]

open access: yes, 2007
We investigate the classical Zassenhaus conjecture for the normalized unit group of the integral group ring of the simple Mathieu group M11.
Bódi, Viktor, Konovalov, A. B.
core   +2 more sources

More on the Schur group of a commutative ring

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The Schur group of a commutative ring, R, with identity consists of all classes in the Brauer group of R which contain a homomorphic image of a group ring RG for some finite group G.
R. A. Mollin
doaj   +2 more sources

ON-SITE SEMANTIC MAPPING OF ARCHAEOLOGICAL EXCAVATION AREAS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
3D laser scanning is the state of the art in modeling archaeological excavation sites, historical sites and even entire cities or landscapes. The documentation of findings on an excavation site is an essential archaeological task.
H. Houshiar   +5 more
doaj   +1 more source

Reversible group rings

open access: yesJournal of Algebra, 2004
An associative ring \(R\) with identity is said to be reversible if \(ab=0\) implies \(ba=0\) for all \(a,b\in R\). The main problem of this paper is the question when the group ring \(K[G]\) of a group \(G\) over a field \(K\) is reversible. The authors prove that if \(G\) is a non-Abelian torsion group and \(K[G]\) is reversible, then \(G\) is ...
Gutan, Marin, Kisielewicz, Andrzej
openaire   +1 more source

Normality in group rings [PDF]

open access: yesSt. Petersburg Mathematical Journal, 2008
8 ...
BOVDI V, SICILIANO, Salvatore
openaire   +3 more sources

Duo group rings

open access: yesJournal of Pure and Applied Algebra, 2007
A ring \(R\) is said to be (i) `duo' if every one-sided ideal is two-sided, and (ii) `reversible' if whenever \(\alpha\beta=0\) for \(\alpha,\beta\in R\), then \(\beta\alpha=0\). The main result of this paper states that, for the group algebra \(KG\) of a torsion group \(G\) over a field \(K\), these two properties are equivalent.
Bell, Howard E., Li, Yuanlin
openaire   +2 more sources

The asymptotic behavior of Frobenius direct images of rings of invariants [PDF]

open access: yes, 2015
We define the Frobenius limit of a module over a ring of prime characteristic to be the limit of the normalized Frobenius direct images in a certain Grothendieck group.
Hashimoto, Mitsuyasu, Symonds, Peter
core   +3 more sources

The Chow ring for the classifying space of $GO(2n)$ [PDF]

open access: yes, 2014
Let $GO(2n)$ be the general orthogonal group scheme (the group of orthogonal similitudes). In the topological category, Y. Holla and N. Nitsure determined the singular cohomology ring $H^*_{\rm sing}(BGO(2n,\mathbb C),\mathbb F_2)$ of the classifying ...
Bhaumik, Saurav
core   +3 more sources

Pain Detection in Biophysiological Signals: Knowledge Transfer from Short-Term to Long-Term Stimuli Based on Distance-Specific Segment Selection

open access: yesComputers, 2023
In this study, we analyze a signal segmentation-specific pain duration transfer task by applying knowledge transfer from short-term (phasic) pain stimuli to long-term (tonic) pain stimuli.
Tobias Benjamin Ricken   +3 more
doaj   +1 more source

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