Barbero–Immirzi connections and how to build them
نویسندگان
چکیده
We introduce a covariant formulation of Barbero-Immirzi connections, which are used in Loop Quantum Gravity to describe gravity. show that connections can be uniquely defined out given spin connection for any $(n+1)$-dimensional lorentzian manifold is spin. A remarkable result the presence real parameter feature unique $4$-dimensional case.
منابع مشابه
Ontologies and How to Build Them
This paper is the product of an area-exam study. It intends to explain the concept of ontology in the context of knowledge engineering research, which is a sub-area of artiicial intelligence research. It introduces the state of the art on methodologies and tools for building ontologies. It also tries to point out some possible future directions for ontology research.
متن کاملHow to Build Windmills in CSCW Research and Attack Them
The paper discusses Sharrock’s and Button’s criticism of our attempt to use Habermas’ communicative action theory to analyze group work platforms. We demonstrate that they misconstrue our goals of the paper, misinterpret our analysis of Habermas’ action types, and misunderstand the concept of critical science. At the end we question the usefulness of these types of debates in furthering CSCW re...
متن کاملBuild them up and break them down
Tight junctions (TJs) of cells expressing simple epithelial polarity have been extensively studied, but less is known about TJs of cells expressing complex polarity. In this paper we analyzed, TJs of four different lines, that form bile canaliculi (BC) and express typical hepatocyte polarity; WIF-B9, 11-3, Can 3-1, Can 10. Striking differences were observed in claudin expression. None of the ce...
متن کاملEnsembles based on the Rich-Club and how to use them to build soft-communities
Ensembles of networks are used as null–models to discriminate network structures. We present an efficient algorithm, based on the maximal entropy method to generate network ensembles defined by the degree sequence and the rich–club coefficient. The method is applicable for unweighted, undirected networks. The ensembles are used to generate correlated and uncorrelated null–models of a real netwo...
متن کاملTypology Characteristics and Behavior Patterns of Elites and How to attract them to Organizations
Human capitals are part of a country’s wealth, and proper functioning of the society depends on the creativity of its elites and Human nature. Nowadays, managing the Elites and preventing their immigration has become one of the difficult issues faced by many organizations. In this research, a lot of effort has been put into finding out the typology of the behavior patterns of the elite using th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geometry and Physics
سال: 2021
ISSN: ['1879-1662', '0393-0440']
DOI: https://doi.org/10.1016/j.geomphys.2021.104276