Mathematische Zeitschrift 

About: Mathematische Zeitschrift is an academic journal published by Springer Science+Business Media. The journal publishes majorly in the area(s): Holomorphic function & Bounded function. It has an ISSN identifier of 0025-5874. Over the lifetime, 11427 publications have been published receiving 241645 citations. The journal is also known as: Mathematische Zeitschrift (Print).

Untersuchungen über das logische Schließen. II

Abstract: The present invention relates to a process for sizing cellulose fibers or cellulose fiber containing materials and to a composition for carrying out the process. More particularly the invention relates to a process for sizing according to which cellulose fibers or cellulose fiber containing materials in a manner known per se are brought into contact with compounds having the general formula WHEREIN R1 is an organic, hydrophobic group having 8 to 40 carbon atoms and R2 is an alkyl group having 1 to 7 carbon atoms or has the same meaning as R1.

Quasilinear elliptic-parabolic differential equations

Abstract: The structure conditions are the ellipticity of a and the (weak) monotonicity of b, and b has to be a subgradient in case m > 1. First we treat the case that b is continuous, and later (Sect. 4) we include Stefan problems, that is, we allow b to have jumps. The special cases of an elliptic equation with time as parameter, that is, b(z)= 0, and the standard parabolic equation, that is, b(z)=z are included. Some special single equations of mixed elliptic and parabolic type are given in the following. The gas flow through a porous medium is described by the equation