Articles

MULTIPLE POINTS OF IMMERSIONS OF M6 \looparrowright R7

  • Mohammad A.Asadi-Golmankhaneh
Expand
  • Department of Mathematics, University of Urmia, P.O. Box 165, Urmia, Iran

Received date: 2008-06-24

  Online published: 2011-01-20

Abstract

In this article, we determine the multiple point set of immersions of 6-dimensional manifolds into 7-dimensional Euclidean space R7. The method is to evaluate the charac-teristic numbers of these manifolds. By a certain method, these numbers can be read of from the Hurewicz image of

hπ7QMO(1) →H7QMO(1).
In particular, we show that for any immersion of P6 in R7 the double, 4-fold and 6-fold point manifolds are cobordant to boundaries and triple point manifolds cobordant to P4, 5-fold point manifolds cobordant to P2 and 7-fold point manifold are odd number.

Cite this article

Mohammad A.Asadi-Golmankhaneh . MULTIPLE POINTS OF IMMERSIONS OF M6 \looparrowright R7[J]. Acta mathematica scientia, Series B, 2011 , 31(1) : 259 -267 . DOI: 10.1016/S0252-9602(11)60226-9

References


[1] Asadi-Golmankhaneh M A, Eccles P J. Determining the characteristic numbers of self-intesection mani-folds. J London Math Soc, 2000, 62(2): 278–290


[2] Asadi-Golmankhaneh M A, Eccles P J. Double point surfaces of immersions. Geometry & Topology, 2000, 4: 149–170


[3] Banchoff T F. Triple points and surgery of immersed surfaces. Proc Amer Math Soc, 1974, 46: 407–413


[4] Barratt M G, Eccles P J. Γ+-structures III: The stable structure of Ω∞Ω∞ A. Topology, 1974, 13: 407–413


[5] Eccles P J. Multiple points of codimension one immersions//Lecture Notes in Mathematics, 788. Springer, 1980: 23–38


[6] Eccles P J. Multiple points of codimension one immersions of oriented manifolds. Math Proc Cambridge Philos Soc, 1980, 87: 213–220


[7] Eccles P J. Codimension one immersions and the Kervaire invariant one problem. Math Proc Cambridge Philos Soc, 1981, 90: 483–493


[8] Koschorke U, Sanderson B. Self intersections and higher Hopf invariants. Topology, 1978, 17: 283–290


[9] May J P. The homology of E1 spaces//Lecture Notes in Mathematics, 533. Springer, 1976: 1–68


[10] Szucs A. Double point surfaces of smooth immersions Mn! R2n−2. Math Proc Cambridge Philos Soc, 1993, 113: 601–613


[11] Wells R. Cobordism groups of immersions. Topology, 1966, 5: 281–294

Outlines

/