Results 211 to 220 of about 371,700 (244)
Some of the next articles are maybe not open access.
Communications in Contemporary Mathematics, 2000
An embedding of a space Y into the 3-sphere S 3 is said to be strictly achiral if its image is pointwise fixed by an orientation reversing homeomorphism of S 3 . A space Y is said to be abstractly planar if it can be embedded into the 2-sphere S
Jiang, Boju, Wang, Shicheng
openaire +1 more source
An embedding of a space Y into the 3-sphere S 3 is said to be strictly achiral if its image is pointwise fixed by an orientation reversing homeomorphism of S 3 . A space Y is said to be abstractly planar if it can be embedded into the 2-sphere S
Jiang, Boju, Wang, Shicheng
openaire +1 more source
Journal of Chromatography A, 2004
Recent developments in planar electrochromatography (PEC) in both the normal-phase and the reversed-phase modes, and at both atmospheric and elevated pressure, are reviewed. Other forced-flow techniques in planar chromatography are also briefly covered.
openaire +2 more sources
Recent developments in planar electrochromatography (PEC) in both the normal-phase and the reversed-phase modes, and at both atmospheric and elevated pressure, are reviewed. Other forced-flow techniques in planar chromatography are also briefly covered.
openaire +2 more sources
Canadian Journal of Mathematics, 1975
A finite partially ordered set (poset) P is customarily represented by drawing a small circle for each point, with a lower than b whenever a < b in P, and drawing a straight line segment from a to b whenever a is covered by b in P (see, for example, G. Birkhoff [2, p. 4]). A poset P is planar if such a diagram can be drawn for P in which none of the
Kelly, David, Rival, Ivan
openaire +2 more sources
A finite partially ordered set (poset) P is customarily represented by drawing a small circle for each point, with a lower than b whenever a < b in P, and drawing a straight line segment from a to b whenever a is covered by b in P (see, for example, G. Birkhoff [2, p. 4]). A poset P is planar if such a diagram can be drawn for P in which none of the
Kelly, David, Rival, Ivan
openaire +2 more sources
On boolean characterizations of planarity and planar embeddings of graphs
Annals of Operations Research, 1990The author introduces a new planarity characterization for graphs, involving the solution of a quadratic Boolean equation. He then discusses seven combinatorially distinct configurations, called planarity obstacles, which lead to a graph whose order and size are linear functions of those of the original graph. Testing for planarity and finding a planar
openaire +2 more sources
Planar Hexacoordinate Carbons: Half Covalent, Half Ionic
Angewandte Chemie - International Edition, 2021Osvaldo Yañez +2 more
exaly
Planar Chirality: A Mine for Catalysis and Structure Discovery
Angewandte Chemie - International Edition, 2022Claudio Palomo +1 more
exaly
Liquid-Crystal-Mediated Geometric Phase: From Transmissive to Broadband Reflective Planar Optics
Advanced Materials, 2020Yan-qing Lu, Peng Chen, Bing-yan Wei
exaly
Metal Complexes of Planar PR2 Ligands: Examining the Carbene Analogy
Coordination Chemistry Reviews, 2012Lisa Rosenberg
exaly
Four Decades of the Chemistry of Planar Hypercoordinate Compounds
Angewandte Chemie - International Edition, 2015Eric Ganz +2 more
exaly