Representativity and flexibility of drawings of graphs on the projective plane
Richard P. Vitray · OhioLink ETD Center (Ohio Library and Information Network) · 1987
W hile th e m ost advanced tech n o lo g y h as b een u sed to photograph and reproduce th is m anuscript, th e quality of the reproduction is h eavily dependent upon th e quality of the m aterial subm itted.For exam ple:• M anuscript pages m ay have in distin ct print.In such cases, the best available copy has been filmed.• M an u scrip ts m ay not alw ays be com plete.In such cases, a note w ill indicate that it is not possible to obtain m issin g pages.• Copyrighted m aterial m ay have been removed from the m anuscript.In such cases, a note w ill indicate the deletion.Oversize m aterials (e.g., m aps, drawings, and charts) are photographed by sectionin g th e original, b egin n in g at the upper left-hand corner and con tin uin g from left to righ t in equal sections w ith sm all overlaps.Each oversize page is a lso film e d a s o n e e x p o s u r e an d is a v a ila b le , for an additional charge, as a standard 35m m slide or as a 17"x 23" black and w h ite photographic print.M ost p h o to g r a p h s r e p r o d u c e a c c e p ta b ly on p o s it iv e microfilm or microfiche b ut lack the clarity on xerographic copies made from th e microfilm.For an additional charge, 35m m slides of 6 "x 9 " black and w h ite photographic prints are a v a ila b le for a n y p hotograp hs or illu str a tio n s th a t cannot be reproduced satisfactorily by xerography.insights and for his tireless assistance throughout the preparation of this dissertation.Thanks go to Dr. Ray-Chaudhuri for my first introduction to graph theory; and, to Dr. Bannai for his many interesting courses in algebraic combinatorics.Special thanks to Dr.