Results 151 to 160 of about 51,212 (207)
Some of the next articles are maybe not open access.
Archive for Mathematical Logic, 2013
Todorčević (Fund Math 150(1):55–66, 1996) shows that there is no Hausdorff gap (A, B) if A is analytic. In this note we extend the result by showing that the assertion “there is no Hausdorff gap (A, B) if A is coanalytic” is equivalent to “there is no Hausdorff gap (A, B) if A is Σ12 ”, and equivalent to ∀r (ℵ1L[r] < ℵ1) .
openaire +2 more sources
Todorčević (Fund Math 150(1):55–66, 1996) shows that there is no Hausdorff gap (A, B) if A is analytic. In this note we extend the result by showing that the assertion “there is no Hausdorff gap (A, B) if A is coanalytic” is equivalent to “there is no Hausdorff gap (A, B) if A is Σ12 ”, and equivalent to ∀r (ℵ1L[r] < ℵ1) .
openaire +2 more sources
On Optimal Polyline Simplification using the Hausdorff and Fréchet Distance
International Symposium on Computational Geometry, 2018We revisit the classical polygonal line simplification problem and study it using the Hausdorff distance and Fr\'echet distance. Interestingly, no previous authors studied line simplification under these measures in its pure form, namely: for a given ...
M. V. Kreveld +2 more
semanticscholar +1 more source
Mathematics of the USSR-Izvestiya, 1978
Criteria are established for Hausdorff separation of the homology and cohomology spaces with compact support of coherent analytic sheaves on complex spaces.Bibliography: 11 titles.
openaire +2 more sources
Criteria are established for Hausdorff separation of the homology and cohomology spaces with compact support of coherent analytic sheaves on complex spaces.Bibliography: 11 titles.
openaire +2 more sources
Hausdorff Dimension, Projections, Intersections, and Besicovitch Sets
New Trends in Applied Harmonic Analysis, Volume 2, 2017This is a survey on recent developments on the Hausdorff dimension of projections and intersections for general subsets of Euclidean spaces, with an emphasis on estimates of the Hausdorff dimension of exceptional sets and on restricted projection ...
P. Mattila
semanticscholar +1 more source
, 2016
For a sequence of integers {a(x)}x≥1 we show that the distribution of the pair correlations of the fractional parts of {〈αa(x)〉}x≥1 is asymptotically Poissonian for almost all α if the additive energy of truncations of the sequence has a power savings ...
C. Aistleitner, G. Larcher, Mark Lewko
semanticscholar +1 more source
For a sequence of integers {a(x)}x≥1 we show that the distribution of the pair correlations of the fractional parts of {〈αa(x)〉}x≥1 is asymptotically Poissonian for almost all α if the additive energy of truncations of the sequence has a power savings ...
C. Aistleitner, G. Larcher, Mark Lewko
semanticscholar +1 more source
Dirac Equation with Position-Dependent Mass and Coulomb-like Field in Hausdorff Dimension
, 2020R. El-Nabulsi
semanticscholar +1 more source
A modified Hausdorff distance for object matching
Proceedings of 12th International Conference on Pattern Recognition, 1994Marie-Pierre Dubuisson, Anil K. Jain
semanticscholar +1 more source