00845nam a22001577a 4500008004100000020001500041050001700056100002100073245006300094260004100157300002300198500002900221505040400250650001600654700001700670120806t        xxu||||| |||| 00| 0 eng d  a0471028657  aQA612.18.J46  aJensen, Tommy R.  aGraph coloring problems. /cTommy R Jensen and Toft Bjarne  aNew York:bJohn Wiley & Sons,c1995.  axix, 295p.:c20cm.  aAuthor and Subject index  aContents: Introduction to graph coloring -- Planar graphs -- Graphs on higher surfaces -- Degrees -- Critical graphs -- The Conjectures of hadwiger and hajos -- Sparse graphs -- Perfect graphs -- Geometric and combinatorial graphs -- Algorithms -- Construction -- Edge colorings -- Orientation and flows -- Chromatic polynomials - Hypergraphs -- Infinite chromatic graphs -- Miscellaneous problems.   aMathematics  aToft, Bjarne