Results 81 to 90 of about 747,490 (222)
The Theory of Sets of Ordinals [PDF]
We propose a natural theory SO axiomatizing the class of sets of ordinals in a model of ZFC set theory. Both theories possess equal logical strength. Constructibility theory in SO corresponds to a natural recursion theory on ordinals.
arxiv
Two Models for the Homotopy Theory of Cocomplete Homotopy Theories [PDF]
We prove that the homotopy theory of cofibration categories is equivalent to the homotopy theory of cocomplete quasicategories. This is achieved by presenting both homotopy theories as fibration categories and constructing an explicit equivalence between them.
arxiv
Theorie der Wirtschaftlichen Entwicklung. [PDF]
L. B. Naymier, Joseph A. Schumpeter
openalex +1 more source
Algebraic Theories in Homotopy Theory [PDF]
An algebraic theory $T$ is a category with objects $t_0,t_2...$ such that for each $n$ the object $t_n$ is an $n$-fold categorical product of $t_1$. A strict $T$-algebra is a product preserving functor $A: T\to Spaces$. Lawvere showed that for a suitable choice of T giving such an algebra amounts to providing the space $A(t_1)$ with a familiar ...
openaire +3 more sources
Supercharacter theories and Schur rings [PDF]
Diaconis and Isaacs have defined the supercharacter theories of a finite group to be certain approximations to the ordinary character theory of the group. We make explicit the connection between supercharacter theories and Schur rings, and we provide supercharacter theory constructions which correspond to Schur ring constructions of Leung and Man and ...
arxiv
Zur Theorie der fastperiodischen Funktionen: III. Dirichletentwicklung analytischer Funktionen [PDF]
Harald Bohr
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Eine Theorie der photochemischen Reaktionsgeschwindigkeiten [PDF]
Max Bodenstein
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Partizipative medienpädagogische Aktionsforschung
Für die Medienpädagogik ist wie für jede Pädagogik das Theorie-Praxis-Problem relevant. Im Beitrag wird partizipative Aktionsforschung als Methode zur Gestaltung von Theorie-Praxis-Korrelationen untersucht.
Christian Swertz+1 more
doaj +1 more source
String theory and the Taniyama-Shimura conjecture [PDF]
The worldsheet of the string theory, which consisting of 26 free scalar fields in Minkowski space, is two dimensional conformal field theory. If we denote the two dimension conformal field theory by elliptic curve and denote the partition function of string theory by modular form, then the relation between conformal field theory and the string theory ...
arxiv