normal tower

normal tower

[′nȯr·məl ′tau̇·ər]
(mathematics)
A tower of subgroups, G0, G1, … , Gn , such that each Gi +1is normal in Gi , i = 1, 2, … , n- 1.
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References in periodicals archive ?
MD+3m Extension portion only on the MD normal tower at Loc.
Consider the different scenarios that may be happening at the same time: GCA or TACAN traffic (on single-frequency approaches); field-carrier-landing-practice (FCLP) aircraft (usually on their own frequency); overhead or straight-in traffic on the normal tower frequency, VFR transition aircraft on VHF; and rotary-wing aircraft, at fixed-wing bases, flying their own VFR course rules.
Each floor would be the size of a normal tower block and it would have 15,208 floors.
Tenders are invited for Supplying and erection of 1 No (MD) 12m extension portion only on the MD normal tower at Loc 243 in the multicircuit portion of Palladam to Ingur 230 KV SC line on DC towers.
Tenders are invited for Supplying and erection of 1 No (MD) 12 extension portion only on the MD normal tower at Loc 242 in the multicircuit portion of Palladam to Ingur 230 KV SC line on DC towers.