A lower bound for area-universal graphs

We establish a lower bound on the efficiency of area-universal circuits. The area A_u of every graph H that can host any graph G of area (at most) A with dilation d, and congestion c#<=##sq root#A/loglog A satisfies the tradeoff A_u #OMEGA#(A log A/(c"2log(2d))). In particular, if A_u = O(A) then max(c,d) #OMEGA#(#sq root#(logA)/loglog A)SIGLEAvailable from TIB Hannover: RR 1912(93-144)+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman