Taking (2+1)-dimensional pure Einstein gravity for arbitrary genus g 1 as a model, we investigate the relation between the partition function formally de ned on the entire phase space and the one written in terms of the reduced phase space. The case of g = 1 (torus) is analyzed in detail and it provides us with good lessons for quantum cosmology. We formulate the gaugexing conditions in a form ...

this paper examines the relationship between accounting conservatism and informational content of earnings using data of 167 firms listed on the tehran stock exchange during 2004-2013. accounting conservatism is measured based on khan and watts' (2009) model and feltham and ohlsson (1995) price model and easton and hariss (1991) return models were used to evaluate the informational content...

Let H be a connected subgraph of graph G. An H-factor G is spanning whose components are isomorphic to H. Given set mutually non-isomorphic graphs, uniform H-factorization partition the edges into H-factors for some H∈H. In this article, we give complete solution existence problem (Ck,Pk+1)-factorizations Kn−I in case when k even.

In this paper, we propose an adaptive fast solver for a general class of symmetric positive definite (SPD) matrices which include the well-known graph Laplacian. We achieve this by developing an adaptive operator compression scheme and a multiresolution matrix factorization algorithm which achieve nearly optimal performance on both complexity and well-posedness. To develop our adaptive operator...

The free energy of the Penner model is shown to be closely related to the integral over the two diagonalizing unitary matrices of a complex rectangular matrix. Matrix models1 can be solved if and only if the original integrals over matrix elements can be reduced to integrals over eigenvalues2,3. In these models, the “angular” integrals over the diagonalizing unitary matrices result in a numeric...