Results 61 to 70 of about 1,660,274 (339)

Symmetry as tactics of solving mathematical problems

open access: yesLietuvos Matematikos Rinkinys, 2012
The article explores symmetry as tactics in solving various mathematical problems. Although in Mathematics curriculum while learning about Geometry, symmetry is taught and simple straightforward exercises are solved, it is argued that the application of ...
Aistė Elijio, Dovilė Malijonytė
doaj   +1 more source

GEOMETRY AND CRYSTAL SYMMETRY

open access: yesComputers & Mathematics with Applications, 1986
AbstractThe beautiful external forms of crystals are manifestations of their internal structures. These structures, which can be regarded as infinite periodic patterns, are determined by local forces. In this article we discuss symmetry from the “local” point of view.
openaire   +2 more sources

Symmetry notion as a universal principle of design [PDF]

open access: yesArhitektura i Urbanizam, 2008
Symmetry is a word that appears in a variety of disciplines over a variety of ages, carries many meanings and has always been in direct relation to the most important notions which explain architectural creativity.
Jadrešin-Milić Renata
doaj  

On the coupling of Galilean-invariant field theories to curved spacetime

open access: yesSciPost Physics, 2018
We consider the problem of coupling Galilean-invariant quantum field theories to a fixed spacetime. We propose that to do so, one couples to Newton-Cartan geometry and in addition imposes a one-form shift symmetry.
Kristan Jensen
doaj   +1 more source

Poisson gauge models and Seiberg-Witten map

open access: yesJournal of High Energy Physics, 2022
The semiclassical limit of full non-commutative gauge theory is known as Poisson gauge theory. In this work we revise the construction of Poisson gauge theory paying attention to the geometric meaning of the structures involved and advance in the ...
V. G. Kupriyanov   +2 more
doaj   +1 more source

On classification of geometries with SO(2,2) symmetry [PDF]

open access: yesJournal of High Energy Physics, 2014
Motivated by the Extremal Vanishing Horizon (EVH) black holes, their near horizon geometry and the EVH/CFT proposal, we construct and classify solutions with (local) SO(2,2) symmetry to four and five dimensional Einstein-Maxwell-Dilaton (EMD) theory with positive, zero or negative cosmological constant Lambda, the EMD-$ $ theory, and also $U(1)^4 ...
Sadeghian, S.   +2 more
openaire   +2 more sources

Bis(1-adamantylammonium) tetrachloridocobaltate(II)

open access: yesActa Crystallographica Section E, 2008
The CoII atom in the title salt, (C10H18N)2[CoCl4], exists in a tetrahedral coordination geometry. The asymmetric unit has two cations that lie on different special positions of site symmetry m; the anion lies on another special position of site symmetry
Seik Weng Ng   +3 more
doaj   +1 more source

Mathematical Geometry and Groups for Low-Symmetry Metal Complex Systems

open access: yesMolecules, 2023
Since chemistry, materials science, and crystallography deal with three-dimensional structures, they use mathematics such as geometry and symmetry. In recent years, the application of topology and mathematics to material design has yielded remarkable ...
Takashiro Akitsu
doaj   +1 more source

On the Use of Symmetry in Geometry [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1903
Two features characterise the treatment of Geometry as presented in Euclid's “Elements”: (1) the propositions are arranged in a definite sequence which cannot be greatly altered without invalidating the proofs; (2) there are no methods of proof applicable to a large number of propositions.
openaire   +2 more sources

Hexakis(dimethyl sulfoxide-κO)cobalt(III) trinitrate

open access: yesActa Crystallographica Section E, 2010
The metal atom of the title salt, [Co(C2H6OS)6](NO3)3, is coordinated by six dimethyl sulfoxide molecules in an octahedral geometry. The metal atom lies on a special position of overline{3} site symmetry.
Qiuhong Li, Seik Weng Ng
doaj   +1 more source

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