Stratifications of teardrops

Bruce Hughes

Fundamenta Mathematicae (1999)

  • Volume: 161, Issue: 3, page 305-324
  • ISSN: 0016-2736

Abstract

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Teardrops are generalizations of open mapping cylinders. We prove that the teardrop of a stratified approximate fibration X → Y × ℝ with X and Y homotopically stratified spaces is itself a homotopically stratified space (under mild hypothesis). This is applied to manifold stratified approximate fibrations between manifold stratified spaces in order to establish the realization part of a previously announced tubular neighborhood theory.

How to cite

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Hughes, Bruce. "Stratifications of teardrops." Fundamenta Mathematicae 161.3 (1999): 305-324. <http://eudml.org/doc/212408>.

@article{Hughes1999,
abstract = {Teardrops are generalizations of open mapping cylinders. We prove that the teardrop of a stratified approximate fibration X → Y × ℝ with X and Y homotopically stratified spaces is itself a homotopically stratified space (under mild hypothesis). This is applied to manifold stratified approximate fibrations between manifold stratified spaces in order to establish the realization part of a previously announced tubular neighborhood theory.},
author = {Hughes, Bruce},
journal = {Fundamenta Mathematicae},
keywords = {stratified space; teardrop; homotopically stratified space; stratified approximate fibration; mapping cylinder; manifold stratified space},
language = {eng},
number = {3},
pages = {305-324},
title = {Stratifications of teardrops},
url = {http://eudml.org/doc/212408},
volume = {161},
year = {1999},
}

TY - JOUR
AU - Hughes, Bruce
TI - Stratifications of teardrops
JO - Fundamenta Mathematicae
PY - 1999
VL - 161
IS - 3
SP - 305
EP - 324
AB - Teardrops are generalizations of open mapping cylinders. We prove that the teardrop of a stratified approximate fibration X → Y × ℝ with X and Y homotopically stratified spaces is itself a homotopically stratified space (under mild hypothesis). This is applied to manifold stratified approximate fibrations between manifold stratified spaces in order to establish the realization part of a previously announced tubular neighborhood theory.
LA - eng
KW - stratified space; teardrop; homotopically stratified space; stratified approximate fibration; mapping cylinder; manifold stratified space
UR - http://eudml.org/doc/212408
ER -

References

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  1. [1] A. Beshears, G-isovariant structure sets and stratified structure sets, Ph.D. thesis, Vanderbilt Univ., 1997. 
  2. [2] T. A. Chapman, Approximation results in topological manifolds, Mem. Amer. Math. Soc. 251 (1981). Zbl0478.57009
  3. [3] D. Coram and P. Duvall, Approximate fibrations, Rocky Mountain J. Math. 7 (1977), 275-288. Zbl0367.55019
  4. [4] R. D. Edwards, TOP regular neighborhoods, handwritten manuscript, 1973. 
  5. [5] B. Hughes, Approximate fibrations on topological manifolds, Michigan Math. J. 32 (1985), 167-183. Zbl0575.55014
  6. [6] B. Hughes, Geometric topology of stratified spaces, Electron. Res. Announc. Amer. Math. Soc. 2 (1996), 73-81. Zbl0866.57018
  7. [7] B. Hughes, Stratified path spaces and fibrations, Proc. Roy. Soc. Edinburgh Sect. A 129 (1999), 351-384. Zbl0923.55007
  8. [8] B. Hughes, Stratifications of mapping cylinders, Topology Appl. 94 (1999), 127-145. Zbl0928.57027
  9. [9] B. Hughes, The geometric topology of stratified spaces, in preparation. Zbl0866.57018
  10. [10] B. Hughes and A. Ranicki, Ends of Complexes, Cambridge Tracts in Math. 123, Cambridge Univ. Press, Cambridge, 1996. Zbl0876.57001
  11. [11] B. Hughes, L. Taylor, S. Weinberger and B. Williams, Neighborhoods in stratified spaces with two strata, Topology, to appear. Zbl0954.57008
  12. [12] B. Hughes, L. Taylor and B. Williams, Bundle theories for topological manifolds, Trans. Amer Math. Soc. 319 (1990), 1-65. Zbl0704.57012
  13. [13] B. Hughes, L. Taylor and B. Williams, Manifold approximate fibrations are approximately bundles, Forum Math. 3 (1991), 309-325. Zbl0728.55009
  14. [14] B. Hughes and S. Weinberger, Surgery and stratified spaces, preprint, http://xxx.lanl.gov/abs/math.GT/9807156. Zbl0982.57009
  15. [15] F. Quinn, Homotopically stratified sets, J. Amer. Math. Soc. 1 (1988), 441-499. Zbl0655.57010
  16. [16] C. Rourke and B. Sanderson, An embedding without a normal bundle, Invent. Math. 3 (1967), 293-299. Zbl0168.44602
  17. [17] L. Siebenmann, The obstruction to finding a boundary of an open manifold of dimension greater than five, Ph.D. thesis, Princeton Univ., 1965. 

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