On finite pseudorandom binary sequences III: The Liouville function, I
Julien Cassaigne, Sébastien Ferenczi, Christian Mauduit, Jöel Rivat, András Sárközy (1999)
Acta Arithmetica
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Julien Cassaigne, Sébastien Ferenczi, Christian Mauduit, Jöel Rivat, András Sárközy (1999)
Acta Arithmetica
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Bruce Hughes (1999)
Fundamenta Mathematicae
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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.
Jose Barrionuevo, Robert M. Burton, Karma Dajani, Cor Kraaikamp (1996)
Acta Arithmetica
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Wolfgang Ch. Schmid, Reinhard Wolf (1997)
Acta Arithmetica
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Dominique Arlettaz, Nicole Pointet-Tischler (1999)
Fundamenta Mathematicae
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It is known that the order of all Postnikov k-invariants of an H-space of finite type is finite. This paper establishes the finiteness of the order of the k-invariants of X in dimensions m ≤ 2n if X is an (n-1)-connected H-space which is not necessarily of finite type (n ≥ 1). Similar results hold more generally for higher k-invariants if X is an iterated loop space. Moreover, we provide in all cases explicit universal upper bounds for the order of the k-invariants of X.
Marta Santos (1999)
Fundamenta Mathematicae
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DI(4) is the only known example of an exotic 2-compact group, and is conjectured to be the only one. In this work, we study generalized cohomology theories for DI(4) and its classifying space. Specifically, we compute the Morava K-theories, and the P(n)-cohomology of DI(4). We use the non-commutativity of the spectrum P(n) at p=2 to prove the non-homotopy nilpotency of DI(4). Concerning the classifying space, we prove that the BP-cohomology and the Morava K-theories of BDI(4) are all...
S. Schmitt (1997)
Acta Arithmetica
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Yi Ouyang, Fei Xu (1997)
Acta Arithmetica
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