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10.336  Articles
1 of 1.035 pages  |  10  records  |  more records»
A finite graph G\Gamma is GG-symmetric if it admits GG as a group of automorphisms acting transitively on V(G)V(\Gamma) and transitively on the set of ordered pairs of adjacent vertices of G\Gamma. If V(G)V(\Gamma) admits a nontrivial GG-invariant partiti... see more

We develop a new framework for analysing finite connected, oriented graphs of valency four, which admit a vertex-transitive and edge-transitive group of automorphisms preserving the edge orientation. We identify a sub-family of `basic' graphs such that ea... see more

A basic tool in universal algebra is that of a congruence. It has been shown that congruences can be defined  for graphs with properties similar to their universal algebraic counterparts. In particular, a subdirect product of graphs and hence also a ... see more

We characterise connected cubic graphs admitting a vertex-transitive group of automorphisms with an abelian normal subgroup that is not semiregular. We illustrate the utility of this result by using it to prove that the order of a semiregular subgroup of ... see more

The majority of graphs whose sandpile groups are known are either regular or simple. We give an explicit formula for a family of non-regular multi-graphs called thick cycles. A thick cycle graph is a cycle where multi-edges are permitted. Its sandpil... see more

This research specifically observes the personal factors of students, both demo-graphically and psychologically expected to influence to achievement of study had by them. Demographic factor that will be observed is intellectual quotient and psychological ... see more

A perfect coloring (equivalent concepts are equitable partition and partition design) of a graph GG is a function ff from the set of vertices onto some finite set (of colors) such that every node of color ii has exactly S(i,j)S(i,j) neighbors of color jj,... see more

The main intention of this research work is to study the derailment response of high-speed railway vehicles (HSRV) cruising on a curved track. In previous research work, a lower degree of freedom (DOF) has been considered for the derailment analysis which... see more

We compute the Betti numbers for all the powers of initial and final lexsegment edge ideals. For the powers of the edge ideal of an anti–d-path, we prove that they have linear quotients and we characterize the normally torsion–free ideals. We determine a ... see more

1 of 1.035 pages  |  10  records  |  more records»