The present paper is a revised version of a much longer work (which had fewer results) entitled "Block Bundle Sheaves". This is an obsolete phrase for "stratified polyhedra"; and since my work has been referred to under the old title, I mention it as a sort of subtitle of the present work. During the process of revision, I profited greatly from lecturing in a graduate seminar at M.I.T., since it was necessary to describe technical definitions and procedures intuitively. I talked about my difficulties to many friends, especially Ralph Reid, my sister Ellen and Dennis Sullivan. Above all, I am indebted to Colin Rourke, who suggested the present method of defining stratifications, and who urged me to change terminology to conform better with Thorn's theory [2 8] of "ensembles stratifies". I am also glad to express my gratitude to William Browder. Please appreciate my work to rock these links:
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