caa a22 4500 38636012X CHVBK 20180307111912.0 cr unu---uuuuu 161130e198910 xx s 000 0 eng 10.1017/S0004972700004391 doi S0004972700004391 pii (NATIONALLICENCE)cambridge-10.1017/S0004972700004391 Neumann Walter D. Department of Mathematics, Ohio State University, Columbus, OH 43210, United States of America On bilinear forms represented by trees [Elektronische Daten] [Walter D. Neumann] The adjacency matrix of a weighted graph determines an integral bilinear form. The trees with unimodular adjacency matrices are described with special emphasis on the definite and semidefinite cases, since they arise as configuration graphs of good divisors in compact complex surfaces. Copyright © Australian Mathematical Society 1989 Bulletin of the Australian Mathematical Society Cambridge University Press 40/2(1989-10), 303-321 0004-9727 40:2<303 1989 40 BAZ https://doi.org/10.1017/S0004972700004391 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0004972700004391 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Neumann Walter D. Department of Mathematics, Ohio State University, Columbus, OH 43210, United States of America NATIONALLICENCE 773 0- Bulletin of the Australian Mathematical Society Cambridge University Press 40/2(1989-10), 303-321 0004-9727 40:2<303 1989 40 BAZ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge