STRUCTURE OF INCIDENCE ALGEBRAS OF LOCALLY FINITE PARTIALLY ORDERED SET

Let E be an equivalence relation on the set of non empty interval of P. A function f I(P,F) is an E-function if f is constant on equivalence classes of E. Let I(PE,F) be the collection of E-function, we call an equivalence relation E order compatible if the E-function closed under multiplication in...

Full description

Saved in:
Bibliographic Details
Main Author: EFIYANTI (NIM 20106013), GUSTINA
Format: Theses
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/10524
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Institut Teknologi Bandung
Language: Indonesia
Description
Summary:Let E be an equivalence relation on the set of non empty interval of P. A function f I(P,F) is an E-function if f is constant on equivalence classes of E. Let I(PE,F) be the collection of E-function, we call an equivalence relation E order compatible if the E-function closed under multiplication in I(P,F). This thesis considers necessary and sufficient condition of I(PE,F) to be a sub algebra of I(P,F).<p>It also give an application of incidence algebras in physics, that is if the partially ordered set was simplicial complexes K then its incidence algebra has the structure of differential module over algebra of all complex-valued function on K. It would be a basis for discrete approximation of spacetime structure.