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Some Invariants and Covariants of Ternary Collineations
Excerpt from Some Invariants and Covariants of Ternary Collineations
With a 4-point we associate the 4-line obtained by taking the polar of each point with respect to the triangle of the other three. It is well known then that conversely the 4-point is obtained by taking the polar of each line with respect to the triangle of the other three. These mutually related systems have been called tetrad and counter-tetrad.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
With a 4-point we associate the 4-line obtained by taking the polar of each point with respect to the triangle of the other three. It is well known then that conversely the 4-point is obtained by taking the polar of each line with respect to the triangle of the other three. These mutually related systems have been called tetrad and counter-tetrad.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
40 pages, Hardcover
First published July 27, 2015
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