Results 11 to 20 of about 704 (148)
THE MOTIVE OF THE HILBERT CUBE $X^{[3]}$ [PDF]
The Hilbert scheme $X^{[3]}$ of length-3 subschemes of a smooth projective variety $X$
MINGMIN SHEN, CHARLES VIAL
doaj +7 more sources
Union of Convex Hilbert Cubes [PDF]
We show that the finite union of Keller cubes in a Hilbert space is homeomorphic to the Hilbert cube provided every subcollection intersects in a Hilbert cube.
Quinn, J., Wong, Raymond Y. T.
openaire +2 more sources
Stable Maps into the Hilbert Cube [PDF]
A map into the Hilbert cube is stable if each composition with projection onto a finite number of factors is stable. We prove that a map from a compact metric space into the Hilbert cube is stable if and only if it is universal. As a consequence, the composition of a stable map with any self homeomorphism of the Hilbert cube is also stable.
Garity, Dennis J., Rohm, Dale M.
openaire +2 more sources
Multiplicative Properties of Hilbert Cubes
We obtain upper bounds on the cardinality of Hilbert cubes in finite fields, which avoid large product sets and reciprocals of sum sets. In particular, our results replace recent estimates of N. Hegyvári and P. P. Pach (2020), which appear to be void for all admissible parameters. Our approach is different from that of N. Hegyvári and P. P. Pach and is
openaire +2 more sources
The union of two Hilbert cubes meeting in a Hilbert cube need not be a Hilbert cube [PDF]
An example is given to verify the assertion of the title.
openaire +2 more sources
This paper gives a partial solution to the problem whether the union of two Hilbert cubes is a Hilbert cube if the intersection is a Hilbert cube and a Z -set in one of them. Our results imply West’s Intermediate Sum Theorem on Hilbert cube factors. Also a technique is developed to obtain
Wong, Raymond Y. T., Kroonenberg, Nelly
openaire +1 more source
How many three-dimensional Hilbert curves are there?
Hilbert's two-dimensional space-filling curve is appreciated for its good locality-preserving properties and easy implementation for many applications. However, Hilbert did not describe how to generalize his construction to higher dimensions.
Herman Haverkort
doaj +1 more source
Flat Hilbert cube manifold pairs [PDF]
The concept of flatness of embeddings is sensible in both Q-manifold theory and PL manifold theory. Here the author makes a connection between these two notions, using as a bridge the idea of a QPL embedding: if M and N are PL manifolds, an embedding \(f: N\times Q\to M\times Q\) is a QPL (QPL-flat) embedding if there exists a PL (PL flat) embedding ...
Garity, Dennis J., Wright, David G.
openaire +5 more sources
Trivial I^τ -fibrations of the multiplication maps for monads O, OH and OS [PDF]
In this paper we investigate when the multiplication maps of monads O, OH and OS are trivial fibrations with fibers homeomorphic to a Tychonov cube or a Hilbert cube.
L. I. Karchevska, T. M. Radul
doaj
Two extensions of Hilbert’s cube lemma
See the abstract in the attached pdf.
Brown, Tom C., Mohsenipour, Shahram
openaire +3 more sources

