We give a concise definition of mitered offset surfaces for nonconvex polytopes in R, along with a proof of existence and a discussion of basic properties. These results imply the existence of 3D straight skeletons for general nonconvex polytopes. The geometric, topological, and algorithmic features of such skeletons are investigated, including a classification of their constructing events in t...

In this paper we study, via variational methods, the problem of scattering of time harmonic acoustic waves by an unbounded sound soft surface. The boundary ∂D is assumed to lie within a finite distance of a flat plane and the incident wave is that arising from an inhomogeneous term in the Helmholtz equation whose support lies within some finite distance of the boundary ∂D. Via analysis of an eq...

We consider the stationary flow of a heat conducting Power Law shear thinning fluid in a bounded domain in R2. We present an elementary proof of existence of at least one weak solution.

Dieser Text fragt anhand der Filme High Life (2018) und Border (Gräns, 2018) nach queeren Momenten im Kino, die nicht als programmatische Setzungen, sondern Verstörungen oder mindestens Störungen insbesondere in/der Reproduktion, zum Erscheinen gebracht werden.

The occurrence of microplastics into the ecosystem has become and eminent threat for environment as well gets extensive attention in recent times. Microplastic existence severely affected lakes, rivers, oceans, coastal zones, even polar zones biome. Microplastics (primary microplastics) mostly come from used products by shattering larger fragments. Through runoff, microplastic enters either aqu...