From BRYAN@wvnvm.wvnet.edu Sat Dec 10 10:21:06 1994 Return-Path: Received: from WVNVM.WVNET.EDU by life.ai.mit.edu (4.1/AI-4.10) for /com/archive/cube-lovers id AB11211; Sat, 10 Dec 94 10:21:06 EST Message-Id: <9412101521.AB11211@life.ai.mit.edu> Received: from WVNVM.WVNET.EDU by WVNVM.WVNET.EDU (IBM VM SMTP V2R2) with BSMTP id 5482; Sat, 10 Dec 94 10:21:08 EST Received: from WVNVM.WVNET.EDU (NJE origin BRYAN@WVNVM) by WVNVM.WVNET.EDU (LMail V1.2a/1.8a) with BSMTP id 1260; Sat, 10 Dec 1994 10:21:08 -0500 X-Acknowledge-To: Date: Sat, 10 Dec 1994 10:21:02 -0500 (EST) From: "Jerry Bryan" To: Subject: Re: Re: Models for the Cube In-Reply-To: Message of 12/10/94 at 15:19:00 from , Martin.Schoenert@math.rwth-aachen.de On 12/10/94 at 15:19:00 Martin Schoenert said: >You seem to favor the physical model. There the reflection has no >real realization, and it makes sense to distinguish between the >rotations and the reflection. That is probably an accurate assessment. However, it should be pointed out that the edges can be reflected on a physical model, even though the corners and Face-centers cannot. Mathematically, this means that generates reflections, but and do not. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Robert G. Bryan (Jerry Bryan) (304) 293-5192 Associate Director, WVNET (304) 293-5540 fax 837 Chestnut Ridge Road BRYAN@WVNVM Morgantown, WV 26505 BRYAN@WVNVM.WVNET.EDU