Acta Applicandae MathematicaJuly 1990, Volume 20, Issue 1–2, pp 193–194 | Cite asElliptic operators, topology and asymptotic methodsJohn Roe: Pitman Research Notes in Mathematics No. 179, 1988, 184 ppBook Review 67 Downloads This is a preview of subscription content, log in to check access.Copyright information© Kluwer Academic Publishers 1990