We present a closed solution formula for differential-algebraic equations (DAEs) that generalizes the concept of the flow to linear and nonlinear problems of arbitrary index. This flow is stated in the original coordinate system and thus allows to study coordinate depending properties like positivity, in particular. Embedded in the concept of the strangeness-index, we separate the differential ...

in this paper, we investigate the canonical property of solutions of a system of differentialequations having a singularity and turning point of even order. first, by a replacement, we transform thesystem to the sturm-liouville equation with a turning point. using the asymptotic estimates for a specialfundamental system of solutions of sturm-liouville equation, we study the infinite product rep...

The correlation analysis of the independence between the behavioral influencing factors has been performed in order to find the non-independent factors. Among the Human Factors Analysis and Classification System (HFACS), the impact of the high-level factors on the bottom level is determined. This study uses empirical method, namely Structural Equation Modeling (SEM) to build the relationship mo...

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evaporation is a fundamental parameter in the hydrological cycle. this study examines the performance of m5model tree and artificial neural network (ann) models in estimating potential evapotranspiration calculated bypenman- monteith and hargreaves- samani equations. daily weather data from two meteorological stations in asemi-arid climate of iran, namely kerman and zahedan, were collected duri...

Når politikk og styringsformer overfor barnehagesektoren har utgangspunkt i barn som humankapital for nasjonens framtidige konkurranseevne, arbeidsmarked velferd, utfordres profesjonen lærerutdannerne moralsk epistemologisk. Med teoretiske konsepter fra Janet Roitman Giorgio Agamben kritisk ressurs, beskriver denne studien sentrale trekk ved maktarrangementer skaper forutsetninger er virksomme ...

‎second derivative general linear methods (sglms) as an extension‎ ‎of general linear methods (glms) have been introduced to improve‎ ‎the stability and accuracy properties of glms‎. ‎the coefficients of‎ ‎sglms are given by six matrices‎, ‎instead of four matrices for‎ ‎glms‎, ‎which are obtained by solving nonlinear systems of order and‎ ‎usually runge--kutta stability conditions‎. ‎in this p...

It has been observed that for most classes of planar maps, the number of maps of size n grows asymptotically like c · n−5/2γn, for suitable positive constants c and γ. It has also been observed that, if dk is the limit probability that the root vertex in a random map has degree k, then again for most classes of maps the tail of the distribution is asymptotically of the form dk ∼ c·kq as k →∞, f...