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A Package of Programs for Determination of Some Classes of Subgroupoids
groupoid disjoint unions of groupoids subgroupoid
2011/1/17
In this paper we give three programs on computer for finding the subgroupoids, wide subgroupoids and normal subgroupoids of a finite groupoid.Applying these programs for groups, we can determine all s...
Pointwise estimates for the ground states of some classes of positivity preserving operators
Hardy’s inequality ground state ultracontractivity Dirichlet form energy measure
2010/11/29
We establish pointwise estimates for the ground states of some classes of posi-tivity preserving operators. The considered operators are negatively perturbed (by measures) strongly local Dirichlet ope...
The Total Embedding Distributions of two Classes of Graphs
overlap matrix total embedding distribution cacti necklaces
2007/12/12
Total embedding distributions have been known for only a few classes of graphs. In this paper the total embedding distributions of the cacti and the necklaces are obtained. Furthermore we obtain the t...