https://people.math.ethz.ch/~halorenz/publications/hamel_abs.html
... The cardinality of Hamel bases of Banach spaces Lorenz Halbeisen and Norbert Hungerbühler We show ... that in an infinite dimensional Banach space, every Hamel base has the cardinality of the Banach space ... abstract The cardinality of Hamel bases of Banach spaces Lorenz Halbeisen and Norbert Hungerbühler ... We show that in an infinite dimensional Banach space, every Hamel base has the cardinality of the ...
https://people.math.ethz.ch/~halorenz/publications/nendrum_abs.html
... On the cardinality of smallest spanning sets of rings Nadia Boudi and Lorenz Halbeisen Let R=(R ... ring R. A spanning set Z is called smallest if there is no spanning set of smaller cardinality than Z ... abstract On the cardinality of smallest spanning sets of rings Nadia Boudi and Lorenz Halbeisen Let ... cardinality than Z. It will be shown that the cardinality of a smallest spanning set of a ring is not always ...
https://people.math.ethz.ch/~halorenz/publications/oxbridge_abs.html
... , where two sets A and B are said to be almost disjoint if the cardinality of their intersection is ... smaller than the cardinality of either A or B. ... of X , where two sets A and B are said to be almost disjoint if the cardinality of their intersection ... is smaller than the cardinality of either A or B . back to publications ...
https://people.math.ethz.ch/~halorenz/publications/weird_abs.html
... Set Theory ZF: There exists a set M such that the cardinality of seq(M) is strictly smaller than the ... cardinality of {M,M} and no function from {M,M} to seq(M) is finite-to-one. ... -Fraenkel Set Theory ZF: There exists a set M such that the cardinality of seq(M) is strictly smaller than ... the cardinality of {M,M} and no function from {M,M} to seq(M) is finite-to-one. back to publications ...
https://people.math.ethz.ch/~halorenz/publications/magic_abs.html
... meager sets is still meager (where c denotes the cardinality of the continuum), we can also add and ... remove sets of cardinality less than c without destroying the magic set. ... meager sets is still meager (where c denotes the cardinality of the continuum), we can also add and ... remove sets of cardinality less than c without destroying the magic set. back to publications ...
Challenges of source selection in the WoD - Zurich Open Repository ...
... accessing the sources' data. To address this shortcoming, federated join- cardinality approximation ... results-yielding) ones. In this paper, we analyze the usefulness of cardinality approximation for source ... - cardinality approximation techniques have been proposed to narrow down the number of possible allocations to a ... few most promising (or results-yielding) ones. In this paper, we analyze the usefulness of cardinality ...
https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/...
... Lochbihler, and David Basin Cardinality Estimators do not Preserve Privacy Abstract: Cardinality estimators ... - gregation properties? We formulate an abstract notion of cardinality estima- tors, that captures this ... /research/publications/pub2019/ Cardinality%20Estimators%20do%20not%20Preserve%20Privacy.pdf ... Lochbihler, and David Basin Cardinality Estimators do not Preserve Privacy Abstract: Cardinality estimators ...
https://people.math.ethz.ch/~halorenz/publications/bloomfield_abs.html
... , and for positive integers a let |aS| denote the cardinality of all functions from S to a. Using a ... axiom of choice, for any infinite set S, the cardinality |seq(S)| is never equal to the cardinality |2S ... formed from S , and for positive integers a let | a S | denote the cardinality of all functions from S to ... the absence of the axiom of choice, for any infinite set S , the cardinality |seq( S )| is never equal ...
Minimal Complete Primitives for Secure Multi-Party Computation - In...
... primitives of minimal cardinality for secure multi-party computation. The cardinality issue (number of ... are complete and of minimal cardinality possible. BibTeX Citation @inproceedings{FGMO01, author ... minimal cardinality for secure multi-party computation. The cardinality issue (number of players accessing ... of minimal cardinality possible. BibTeX Citation @inproceedings{FGMO01, author = {Matthias Fitzi and ...
https://people.math.ethz.ch/~halorenz/publications/colmar39_abs.html
... given natural numbers n and r, alpha(n,r) denotes the maximum cardinality of a subset of Z n which does ... For given natural numbers n and r , alpha( n,r ) denotes the maximum cardinality of a subset of Z n ...
