Results 51 to 60 of about 32,045 (222)

Fine group gradings of the real forms of $sl(4,\C)$, $sp(4,\C)$, and $o(4,\C)$

open access: yes, 2007
We present an explicit description of the 'fine group gradings' (i.e. group gradings which cannot be further refined) of the real forms of the semisimple Lie algebras $sl(4,\C)$, $sp(4,\C)$, and $o(4,\C)$. All together 12 real Lie algebras are considered,
Patera, Jiří   +2 more
core   +2 more sources

Electronic Structures and Spectroscopic Properties of 6π-Electron Ring Molecules and Ions E2N2 and E42+ (E = S, Se, Te)

open access: yes, 2004
The electronic structures and molecular properties of square-planar 6π-electron ring molecules and ions E2N2 and E42+ (E = S, Se, Te) were studied using various ab initio methods and density functionals.
H. Tuononen   +3 more
semanticscholar   +1 more source

Deuda pública interna, patrón metálico y guerras civiles: interconexiones institucionales, la Colombia del siglo XIX

open access: yesLecturas de Economía, 2007
Este artículo analiza los impactos monetarios e institucionales de la deuda pública interna en Colombia en el siglo XIX. Se expone la naturaleza de esta deuda y su evolución institucional, con el fin de bosquejar una parte de la matriz institucional del ...
Angela Milena Rojas
doaj  

Irreducible representations of Upq[gl(2/2)]

open access: yes, 2001
The two-parametric quantum superalgebra $U_{pq}[gl(2/2)]$ and its representations are considered. All finite-dimensional irreducible representations of this quantum superalgebra can be constructed and classified into typical and nontypical ones according
Berkovits N   +36 more
core   +3 more sources

Prerequisites for a computational approach to Minoan chronology

open access: yesArchaeometry, Volume 67, Issue S1, Page 110-130, June 2025.
Abstract The paper examines the development, adoption, and limitations of the relative chronology system for Minoan pottery, initially established by Sir Arthur Evans and Duncan Mackenzie during the excavation of Knossos (1900–1906). Despite its weaknesses, this system remained largely unchanged due to its convenience rather than its accuracy.
Diamantis Panagiotopoulos   +1 more
wiley   +1 more source

Joint Wire Cutting with Non‐Maximally Entangled States

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 5, May 2025.
Wire cutting decomposes large quantum circuits into smaller subcircuits by severing connecting wires, enabling execution on multiple distributed devices. This study employs non‐maximally entangled (NME) states in joint wire cuts to reduce their overhead.
Marvin Bechtold   +4 more
wiley   +1 more source

A naturally occurring standalone TrpB enzyme provides insights into allosteric communication within tryptophan synthase

open access: yesProtein Science, Volume 34, Issue 4, April 2025.
Abstract Allosteric regulation of catalytic activity is a widespread property of multi‐enzyme complexes. The tryptophan synthase is a prototypical allosteric enzyme where the constituting α (TrpA) and β (TrpB) subunits mutually activate each other in a manner that is incompletely understood.
Thomas Kinateder   +4 more
wiley   +1 more source

Almost Hermitian Geometry on Six Dimensional Nilmanifolds [PDF]

open access: yes, 2000
The fundamental 2-form of an invariant almost Hermitian structure on a 6-dimensional Lie group is described in terms of an action by SO(4)xU(1) on complex projective 3-space.
Abbena, E., Garbiero, S., Salamon, S.
core   +1 more source

A taxonomic guide to diffusion MRI tractography visualization tools

open access: yesNMR in Biomedicine, Volume 38, Issue 1, January 2025.
This survey focuses on diffusion MRI tractography visualization tools which are widely used to evaluate data quality, interpret results, and communicate findings. Navigating this landscape poses a challenge for newcomers due to an increasing number of tools. A systematic exploration of a diverse range of features is proposed across 27 tools.
Miriam Laamoumi   +2 more
wiley   +1 more source

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