We study the ultraviolet and the infrared behavior of 2D topological BF-Theory coupled to vector and scalar fields. This model is equivalent to 2D gravity coupled to topological matter. Using techniques of the algebraic renormalization program we show that this model is anomaly free and ultraviolet as well as infrared finite at all orders of perturbation theory. Work supported in part by the “F...

Let C be a given circuit of a bridgeless cubic graph G. It was conjectured by Seymour that G has a circuit double cover (CDC) containing the given circuit C. This conjecture (strong CDC [SCDC] conjecture) has been verified by Fleischner and Häggkvist for various families of graphs and circuits. In this article, some of these earlier results have been improved: Contract grant sponsor: NSF-China;...

In this article, the relationship between vertex degrees and entries of the doubly stochastic graph matrix has been investigated. In particular, we present an upper bound for the main diagonal entries of a doubly stochastic graphmatrix and investigate the relations between a kind of distance for graph vertices and the vertex degrees. These results are used to answer in negative Merris’ question...

This study investigates how inspirational leadership and technology support for contextualization influence individuals’ psychological contract and knowledge sharing in distributed teams. Drawing on the intersection between social identity, psychological contract and leadership theories, the current research highlights the importance of inspirational leaders who foster two kinds of psychologica...

Earnings management is found to be driven by different managerial incentives. Previous studies have identified that executive compensation contracts create incentives for earnings management. The agency theory and the positive accounting theory provide explanations for contract-driven earnings management. This study links the agency theory and the positive accounting theory and reviews the earl...