Results 271 to 280 of about 7,041,985 (308)
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Journal of the London Mathematical Society, 1998
This paper develops a deformation theory for \(k\)-parameter families of pointed marked graphs with fixed fundamental group \(F_n\). Applications include a simple geometric proof of stability of the rational homology of \(\Aut(F_n)\), computations of the rational homology of \(\Aut(F_n)\) in small dimensions, proofs that various natural complexes of ...
Hatcher, Allen, Vogtmann, Karen
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This paper develops a deformation theory for \(k\)-parameter families of pointed marked graphs with fixed fundamental group \(F_n\). Applications include a simple geometric proof of stability of the rational homology of \(\Aut(F_n)\), computations of the rational homology of \(\Aut(F_n)\) in small dimensions, proofs that various natural complexes of ...
Hatcher, Allen, Vogtmann, Karen
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The Mathematical Gazette, 1963
Suppose there are n towns every pair of which are connected by a single one-way road (roads meet only at towns). Is it possible to choose the direction of the traffic on all the roads so that if any two towns are named there is always a third from which the two named can be reached directly ...
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Suppose there are n towns every pair of which are connected by a single one-way road (roads meet only at towns). Is it possible to choose the direction of the traffic on all the roads so that if any two towns are named there is always a third from which the two named can be reached directly ...
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2013
This chapter on chemical graph theory forms part of the natural science and processes section of the ...
Estrada, Ernesto, Bonchev, Danail
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This chapter on chemical graph theory forms part of the natural science and processes section of the ...
Estrada, Ernesto, Bonchev, Danail
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Canadian Journal of Mathematics, 1959
A well-known theorem of Ramsay (8; 9) states that to every n there exists a smallest integer g(n) so that every graph of g(n) vertices contains either a set of n independent
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A well-known theorem of Ramsay (8; 9) states that to every n there exists a smallest integer g(n) so that every graph of g(n) vertices contains either a set of n independent
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Cabri-graph, a sketchpad for graph theory
Mathematics and Computers in Simulation, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baudon, Olivier, Laborde, Jean-Marie
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Mathematical Proceedings of the Cambridge Philosophical Society, 1947
We call a point set in a complex K a 0-cell if it contains just one point of K, and a 1-cell if it is an open arc. A set L of 0-cells and 1-cells of K is called a linear graph on K if(i) no two members of L intersect,(ii) the union of all the members of L is K,(iii) each end-point of a 1-cell of L is a 0-cell of Land (iv) the number of 0-cells and 1 ...
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We call a point set in a complex K a 0-cell if it contains just one point of K, and a 1-cell if it is an open arc. A set L of 0-cells and 1-cells of K is called a linear graph on K if(i) no two members of L intersect,(ii) the union of all the members of L is K,(iii) each end-point of a 1-cell of L is a 0-cell of Land (iv) the number of 0-cells and 1 ...
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2019
Graphs are a mathematical structure composed of a set of elements, and a set of connection between them. Due to their intuitive representation, graphs are widely employed in many different fields and, in particular, in systems biology and bioinformatics.
Beretta S., Denti L., Previtali M.
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Graphs are a mathematical structure composed of a set of elements, and a set of connection between them. Due to their intuitive representation, graphs are widely employed in many different fields and, in particular, in systems biology and bioinformatics.
Beretta S., Denti L., Previtali M.
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1995
The objects that we study in the branch of mathematics known as graph theory are not graphs drawn with x and y axes. In this chapter, the word ‘graph’ refers to a structure consisting of points (called ‘vertices’), some of which may be joined to other vertices by lines (called ‘edges’) to form a network. Structures of this type abound in computing. The
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The objects that we study in the branch of mathematics known as graph theory are not graphs drawn with x and y axes. In this chapter, the word ‘graph’ refers to a structure consisting of points (called ‘vertices’), some of which may be joined to other vertices by lines (called ‘edges’) to form a network. Structures of this type abound in computing. The
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Journal of Graph Theory, 1986
AbstractAt the occasion of the 250th anniversary of graph theory, we recall some of the basic results and unsolved problems, some of the attractive and surprising methods and results, and some possible future directions in graph theory.
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AbstractAt the occasion of the 250th anniversary of graph theory, we recall some of the basic results and unsolved problems, some of the attractive and surprising methods and results, and some possible future directions in graph theory.
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Annals of Operations Research, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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