We study the lattice width of lattice-free polyhedra given by ${A}{x}\leq{b}$ in terms $\Delta({A})$, maximal $n\times n$ minor absolute value ${A}\in\mathbb{Z}^{m\times n}$. Our main contribution is to link height Hilbert bases and diameter finite abelian groups. This leads a bound on pyramids which solely depends $\Delta({A})$ provided conjecture regarding holds. Further, we exploit combinati...

abstract tectonic, plays a key role in the evolution of morphology and can be distinguished with morphotectonic, rivers and structural parameters. an analysis of morphometric parameters illustrates that the development of them is associated with faults activities and rocks resistance. morphotectonic analysis also supplies seismotectonic setting for a region. for appropriate and survey tectonic ...

Abstract. When we describe the shape of certain entities, like a vase or a river, we refer to their qualities in different ways. A river has usually a definite length, but its width varies with the distance from the source, typically getting higher towards the end. Similarly, a vase has a definite height, but its width may vary, reflecting a certain pattern that often marks a particular style. ...

greenhouse structure has an important role in success of greenhouse production. this research was conducted to study problems related to vegetable greenhouse structure in khuzestan province for on year(2011-2012). for this purpose, 21 greenhouses were selected by simple randomized samplang and questionnaires were completed. the results revealed that the major problems in greenhouses vegetable p...

The paper presents the results obtained from analysis of the correlation between cranial dimensions (length, width, and height) and indices against the complexity of the sagittal suture, which was expressed as the ratio between absolute sutural length to the linear length of the suture. The statistical study on 29 skulls shows a significant negative correlation between the height/width index of...