Convexity and graph theory: proceedings of the Conference on by M.Rosenfeld, J.Zaks

By M.Rosenfeld, J.Zaks

Show description

Read or Download Convexity and graph theory: proceedings of the Conference on Convexity and Graph Theory, Israel, March 1981 PDF

Best graph theory books

Graphs, Algorithms, and Optimization

A precious source for arithmetic and machine technological know-how scholars, Graphs, Algorithms and Optimization offers the idea of graphs from an algorithmic point of view. The authors conceal the most important subject matters in graph concept and introduce discrete optimization and its connection to graph thought. The booklet includes a wealth of data on algorithms and the knowledge constructions had to software them successfully.

Schaum's outline of theory and problems of graph theory

Student's love Schaum's--and this new consultant will exhibit you why! Graph conception takes you directly to the guts of graphs. As you examine alongside at your individual speed, this learn consultant indicates you step-by-step find out how to resolve the type of difficulties you are going to locate in your tests. It promises enormous quantities of thoroughly labored issues of complete strategies.

Algebraic graph theory. Morphisms, monoids and matrices

Graph versions are super helpful for the majority functions and applicators as they play a tremendous position as structuring instruments. they permit to version web buildings - like roads, pcs, phones - situations of summary facts buildings - like lists, stacks, timber - and sensible or item orientated programming.

Applied multidimensional scaling

This booklet introduces MDS as a mental version and as a knowledge research approach for the utilized researcher. It additionally discusses, intimately, find out how to use MDS courses, Proxscal (a module of SPSS) and Smacof (an R-package). The booklet is exclusive in its orientation at the utilized researcher, whose fundamental curiosity is in utilizing MDS as a device to construct noticeable theories.

Extra info for Convexity and graph theory: proceedings of the Conference on Convexity and Graph Theory, Israel, March 1981

Sample text

Math. 19 (1974) 292-296. Received 25 April 1Y8J Annals of Discrete Mathematics 20 (1984) 37-41 North-Holland SOME CONDITIONS FOR DIGRAPHS TO BE HAMILTONIAN D. AMAR, I. FOURNIER and A. GERMA Laboratoire de Recherche en Znformatique, Universite' de Paris-Sud, 91405 Orsay Cedex, France We answer a question of B. Bollobas and we determine the minimum number of arcs in a diagraph with given minimum indegree and outdegree guaranteeing this digraph to be Hamiltonian or strongly Hamilton-connected. 1. Introduction The notation we use can be found in [ l ] In .

X, be the vertices of G" and suppose that u, u and w are the degrees of xl, x2 and x3, respectively. 3,there are at most two vertices xi with i 3 4 that are adjacent to xl, x2 and x3. Thus, the number of edges that join xl, x2 and x j to some x,, i 2 4 , is at most 2 . 3 + ( n - 5 ) . 2 = 2 n - 4 , and we obtain: 0 u+u+w<6+(2n-4)=2n+2. Proof of Theorem 1. Note that if d l , d2,.. ,d, are the degrees of the vertices of a graph G", then (3, N(G",K1,k)=$ i=l for all k 2 2 . Therefore f ( n , K , , k )is just where the maximum is taken over all degree sequences of planar graphs on n vertices.

Lesniak-Foster, Graphs and Digraphs (Prindle, Weber & Schmidt, Reading, 1979). [2] F. Buckley, Self-centered graphs with a given radius, Proc. 10th S-E Conf. Combinatorics, Graph Theory, and Computing, Congressus Numerantum XXIII (Utilitas Mathematica. Winnipeg, 1979) pp. 211-215. [3] F. Harary, Graph Theory (Addison-Wesley, Reading, 1969). [4] J. Mycielski, Sur le coloriage des graphes, Coll. Math. 3 (1955) 161-162. Received March 1981 This Page Intentionally Left Blank Annals of Discrete Mathematics 20 (1984) 25-36 North-Holland ON THE NUMBER OF SUBGRAPHS OF PRESCRIBED TYPE OF PLANAR GRAPHS WITH A GIVEN NUMBER OF VERTICES N.

Download PDF sample

Rated 4.38 of 5 – based on 46 votes