Results 51 to 60 of about 3,335 (132)

Directed path graphs [PDF]

open access: yes, 1996
The concept of a line digraph is generalized to that of a directed path graph. The directed path graph $\overrightarrow P_k(D)$ of a digraph D is obtained by representing the directed paths on k vertices of D by vertices.
Broersma, Hajo, Li, Xueliang
core   +1 more source

CoEulerian graphs

open access: yes, 2015
We suggest a measure of "Eulerianness" of a finite directed graph and define a class of "coEulerian" graphs. These are the graphs whose Laplacian lattice is as large as possible.
Farrell, Matthew, Levine, Lionel
core   +1 more source

Complexity of Token Swapping and its Variants

open access: yes, 2018
In the Token Swapping problem we are given a graph with a token placed on each vertex. Each token has exactly one destination vertex, and we try to move all the tokens to their destinations, using the minimum number of swaps, i.e., operations of ...
Bonnet, Édouard   +2 more
core   +1 more source

Hamiltonian Strongly Regular Graphs [PDF]

open access: yes
We give a sufficient condition for a distance-regular graph to be Hamiltonian. In particular, the Petersen graph is the only connected non-Hamiltonian strongly regular graph on fewer than 99 vertices.Distance-regular graphs;Hamilton cycles JEL ...
Brouwer, A.E., Haemers, W.H.
core   +1 more source

Factors and Connected Factors in Tough Graphs with High Isolated Toughness

open access: yes, 2019
In this paper, we show that every $1$-tough graph with order and isolated toughness at least $r+1$ has a factor whose degrees are $r$, except for at most one vertex with degree $r+1$.
Hasanvand, Morteza
core  

The total zero-divisor graph of commutative rings

open access: yes, 2018
In this paper we initiate the study of the total zero-divisor graphs over commutative rings with unity. These graphs are constructed by both relations that arise from the zero-divisor graph and from the total graph of a ring.
Jevđenić, Sara   +3 more
core  

Quantum computing algorithms: getting closer to critical problems in computational biology. [PDF]

open access: yesBrief Bioinform, 2022
Marchetti L   +8 more
europepmc   +1 more source

Genome assembly using quantum and quantum-inspired annealing. [PDF]

open access: yesSci Rep, 2021
Boev AS   +7 more
europepmc   +1 more source

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