Categorical topology

Net Spaces in Categorical Topology

In the paper we introduce the notion of S-nets, S a non-empty construct , as a generalization of the usual nets. S-net spaces and continuous maps between them are then deened in a natural way. For S-net spaces we introduce a number of axioms and study the categories obtained. We nd some topological and cartesian closed categories of S-net spaces and describe their relations to certain known top...

Categorical Domain Theory: Scott Topology, Powercategories, Coherent Categories

In the present article we continue recent work in the direction of domain theory were certain (accessible) categories are used as generalized domains. We discuss the possibility of using certain presheaf toposes as generalizations of the Scott topology at this level. We show that the toposes associated with Scott complete categories are injective with respect to dense inclusions of toposes. We ...

Categorical Logic Categorical Logic

Categorical representations of categorical groups

The representation theory for categorical groups is constructed. Each categorical group determines a monoidal bicategory of representations. Typically, these categories contain representations which are indecomposable but not irreducible. A simple example is computed in explicit detail.

Working Paper Series Categorical Data Categorical Data

Categorical outcome (or discrete outcome or qualitative response) regression models are models for a discrete dependent variable recording in which of two or more categories an outcome of interest lies. For binary data (two categories) probit and logit models or semiparametric methods are used. For multinomial data (more than two categories) that are unordered, common models are multinomial and...