Nutzungsbedingungen Mit dem Zugriff auf den vorliegenden Inhalt gelten die Nutzungsbedingungen als akzeptiert. Die angebotenen Dokumente stehen für nicht-kommerzielle Zwecke in Lehre, Forschung und für die private Nutzung frei zur Verfügung. Einzelne Dateien oder Ausdrucke aus diesem Angebot können zusammen mit diesen Nutzungsbedingungen und unter deren Einhaltung weitergegeben werden. Die Spei...

Motivated by the construction of Steenrod cup-i products in singular cochain algebra a space and non-commutative differential forms, we define category binomial cup-one graded algebras over integers prime fields positive characteristic. The Hirsch identities bind cup-product, product, package that further enhance with ring structure arising from integer-valued rational polynomials. This allows ...

In this paper I give new proofs of the structure theorems for the unoriented cobordism ring [12] and the complex cobordism ring [8, 131. The proofs are elementary in the sense that no mention of the Steenrod algebra or Adams spectral sequence is made. In fact, the only result from homotopy theory which is used in an essential way is the Serre finiteness theorem in order to know that the complex...

has a topological interpretation too: If K is a finite complex then the homology of the Spanier-Whitehead dual DK+ of K+ is canonically isomorphic to the cohomology of K . Under this isomorphism the left action by θ ∈ A on H∗(K) corresponds to the right action of χθ ∈ A on H∗(DK+). In 1974 Davis [3] proved that sometimes much more efficient ways exist to compute χSqn ; for example (3) χSq2 r−1 ...