Results 101 to 110 of about 5,444,235 (274)
On Klein Surfaces and Dihedral Groups.
MATHEMATICA SCANDINAVICA, 1995 We study the following problem. Given an NEC group \(\Gamma\) and the dihedral group \(D_p\), with \(p\) a prime, how many non-conjugate normal subgroups of \(\Gamma\) has \(D_p\) as quotient group? This is equivalent to asking how many non-biconformally equivalent Klein surfaces that are coverings of the orbifold whose fundamental group is \(\Gamma ...
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Smooth skew morphisms of the dihedral groups
Ars Mathematica Contemporanea, 2019 A skew-morphism $φ$ of a finite group $A$ is a permutation on $A$ such that $φ(1)=1$ and $φ(xy)=φ(x)φ^{π(x)}(y)$ for all $x,y\in A$ where $π:A\to\mathbb{Z}_{|φ|}$ is an integer function. A skew-morphism is smooth if $π(φ(x))=π(x)$ for all $x\in A$. The concept of smooth skew-morphisms is a generalization of that of $t$-balanced skew-morphisms.
Na-Er Wang +3 more
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Advanced Science, EarlyView.Based on the anionic Hofmeister effect, a universal strategy of incorporation of stereo‐π anion BPh4− into a series of Cy5 skeletons to unlock long‐lived charge‐separated states was reported, wherein the weak electronic coupling and low charge recombination driving force hinder the charge recombination process, elevating the oxygen‐independent ROS ...
Xuan Zhao +9 more
wiley +1 more source
Affine Completeness of Generalised Dihedral Groups
, 2006 In this paper we study affine completeness of generalised dihedral groups. We give a formula for the number of unary compatible functions on these groups, and we characterise for every k ∈ N the k-affine complete generalised dihedral groups. We find that
Jürgen Ecker
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Local Acidity as a Corrosiveness Descriptor of Fluorinated Ether Solvents in Lithium–Metal Batteries
Angewandte Chemie, EarlyView.Adjusting the extent of solvent fluorination reveals a trade‐off between the solvation power and solvent acidity of electrolytes for lithium–metal batteries (LMBs). F4MEP is within the optimal window and balances anion‐rich solvation with suppressed Li corrosion for stable interphase formation to extend the cycle life of LMBs.
Dongmin Park +10 more
wiley +2 more sources
4,6-Dibromoisophthalic acid monohydrate
Acta Crystallographica Section E, 2012 In the crystal structure of the title hydrate, C8H4Br2O4·H2O, O—H...O hydrogen bonds link the molecules into a two-dimensional network parallel to (10-2).
Bao-fen Ye
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Advanced Science, EarlyView.Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang +5 more
wiley +1 more source
Dihedral side extensions and class groups [PDF]
, 2008 We present a non-abelian mirror-type principle relating the p-ranks of class groups of subfields of a dihedral field of degree 2p for an odd prime p with a limited ramification ...
Hubbard, David
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Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont
Angewandte Chemie, EarlyView.Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley +11 more
wiley +2 more sources
Characteristic Conformation of Mosher’s Amide Elucidated Using the Cambridge Structural Database
Molecules, 2015 Conformations of the crystalline 3,3,3-trifluoro-2-methoxy-2-phenylpropanamide derivatives (MTPA amides) deposited in the Cambridge Structural Database (CSD) were examined statistically as Racid-enantiomers. The majority of dihedral angles (48/58, ca. 83%
Akio Ichikawa, Hiroshi Ono, Yuji Mikata
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