[2,7-Dimethoxy-8-(2-naphthoyl)naphthalen-1-yl](naphthalen-2-yl)methanone

1 - Fluoro - 2 , 5 - dimethoxy - 4 - nitrobenzene

1-Fluoro-2,5-dimethoxy-4-nitrobenzene was synthesized in 90% yield by the reaction of commercial 2-fluoro-1,4-dimethoxybenzene with nitric acid. The structure was confirmed by X-ray crystallography. The new title compound was characterized by 1H and 13C-NMR, elemental analysis, EI-MS and FT-IR.

Singer 8-arcs of Mathon type in PG(2, 27)

In [3] De Clerck, De Winter and Maes counted the number of non-isomorphic Mathon maximal arcs of degree 8 in PG(2, 2), h 6= 7 and prime. In this article we will show that in PG(2, 2) a special class of Mathon maximal arcs of degree 8 arises which admits a Singer group (i.e. a sharply transitive group) on the 7 conics of these arcs. We will give a detailed description of these arcs, and then cou...

Clifford-Fischer theory applied to a group of the form $2_{-}^{1+6}{:}((3^{1+2}{:}8){:}2)$

‎In our paper [A‎. ‎B‎. ‎M‎. ‎Basheer and J‎. ‎Moori‎, ‎On a group of the form $2^{10}{:}(U_{5}(2){:}2)$] we calculated the inertia factors‎, ‎Fischer matrices and the ordinary character table of the split‎ ‎extension $ 2^{10}{:}(U_{5}(2){:}2)$ by means of Clifford-Fischer‎ ‎Theory‎. ‎The second inertia factor group of $2^{10}{:}(U_{5}(2){:}2)$‎ ‎is a group of the form $2_{-}^{1+6}{:}((3^{1+2}{...

8 .4 % 1 2 .7 % 1 0 .8 % 1 4 .2 % Tourism Economics Summary

8-1-2.chp:Corel VENTURA

The model presented in this paper is the first of a new generation of evolutionary economic models: ‘history-friendly’ models. History-friendly models are formal models that aim to capture, in stylized form, qualitative and ‘appreciative’ theories about the mechanisms and factors affecting industry evolution, technological advance and institutional change put forth by empirical scholars of indu...