Desired physical form of cities has been noticeable since the beginning of urbanization, from old patterns of early civilizations to the latest urbanism’s theories, which offered to build better cities. The opinions in recent decades have expressed that compact physical form of cities is a better form than sprawl form to achieve urban sustainability. The form of the city is the embodiment of it...

Georges Voronoi (1908-09) introduced two important reduction methods for positive quadratic forms: the reduction with perfect forms, and the reduction with L-type domains. A form is perfect if it can be reconstructed from all representations of its arithmetic minimum. Two forms have the same L-type if Delaunay tilings of their lattices are affinely equivalent. Delaunay (1937-38) asked about pos...

In this chapter the results are presented of estimating eq. (3.9) under the expectational hypotheses discussed above. These basic results are discussed in detail in this chapter, and then inch. 5, using eq. (3.9) as a starting point, various hypotheses regarding other possible determinants of short-run fluctuations in the number of workers employed are presented and tested. The data used in thi...

As long as eq. (4) is satisfied we can then perform a gauge transformation to set to 0 some components of h̄μν . Note that this would not be possible if Tμν 6= 0 (it would appear on the right hand side of eq. (1)), as ξ and h̄μν would then satisfy different equations. Let us thus choose a specific ξ to impose 4 conditions on h̄μν . In particular h̄→ h̄′ = h̄+ ξ ,μ μ so one can choose ξ0, say, to set ...

Some of the difficulties and misunderstandings that happen in accounting theory, practice, regulation and education are grounded in language and linguistics. As an illustration of this the Persian equivalent of 'accounting' is linguistically analysed to reveal how a mistranslation may cause difficulties in understanding and improving Iranian Accounting. This paper shows how Hesaabdaaree is not ...

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We prove that if T = T eq is a stable theory (without the finite cover property), then the theory TP of “beautiful pairs” eliminates imaginaries if and only if no infinite group is definable in a model of T .