TY - CONF AB - We investigate the expressive power of timing restrictions on labeled transition systems. In particular, we show how constraints on clock variables together with a uniform liveness condition—the divergence of time—can express Büchi, Muller, Streett, Rabin, and weak and strong fairness conditions on a given labeled transition system. We then consider the effect, on both timed and time-abstract expressiveness, of varying the following parameters: time domain (discrete or dense), number of clocks, number of states, and size of constants used in timing restrictions. AU - Henzinger, Thomas A AU - Kopke, Peter AU - Wong Toi, Howard ID - 4500 SN - 9783540600848 T2 - 22nd International Colloquium on Automata, Languages and Programming TI - The expressive power of clocks VL - 944 ER -