Results 41 to 50 of about 1,275,089 (180)

DP-colorings of uniform hypergraphs and splittings of Boolean hypercube into faces

, 2022
We develop a connection between DP-colorings of $k$-uniform hypergraphs of order $n$ and coverings of $n$-dimensional Boolean hypercube by pairs of antipodal $(n-k)$-dimensional faces. Bernshteyn and Kostochka established that the lower bound on edges in
Potapov, Vladimir N.
core  

Phonon bottleneck in GaAs/AlxGa1−xAs quantum dots

AIP Advances, 2015
We report low-temperature photoluminescence measurements on highly-uniform GaAs/AlxGa1−xAs quantum dots grown by droplet epitaxy. Recombination between confined electrons and holes bound to carbon acceptors in the dots allow us to determine the energies ...
Y. C. Chang, A. J. Robson, S. Harrison, Q. D. Zhuang, M. Hayne   +4 more
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Bound States of the Exchange—Correlation Excitons in the Uniform Electron Gas by the Monte Carlo Simulations

Universe, 2022
The modified path integral representation of Wigner functions and the new Monte Carlo approach has been suggested to account for the impact of the interparticle interaction on the Pauli exclusion principle of fermions.
Vladimir Filinov, Alexander Larkin, Pavel Levashov   +2 more
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The Largest Laplacian and Signless Laplacian H-Eigenvalues of a Uniform Hypergraph [PDF]

, 2013
In this paper, we show that the largest Laplacian H-eigenvalue of a $k$-uniform nontrivial hypergraph is strictly larger than the maximum degree when $k$ is even. A tight lower bound for this eigenvalue is given.
Hu, Shenglong, Qi, Liqun, Xie, Jinshan
core  

A Note on the Minimum Number of Edges in Hypergraphs with Property O

, 2019
An oriented $k$-uniform hypergraph is said to have Property O if for every linear order of the vertex set, there is some edge oriented consistently with the linear order.
Kronenberg, Gal, Kusch, Christopher, Lamaison, Ander, Micek, Piotr, Tran, Tuan   +4 more
core   +1 more source

Uniform Bounds for Sampling Expansions

Journal of Approximation Theory, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Jumping to a Uniform Upper Bound [PDF]

Proceedings of the American Mathematical Society, 1982
A uniform upper bound on a class of Turing degrees is the Turing degree of a function which parametrizes the collection of all functions whose degree is in the given class. I prove that if a _ \underline a is a uniform upper bound on an ideal of degrees then a _ \underline a is the
openaire   +2 more sources

Uniform bounds on multigraded regularity [PDF]

Journal of Algebraic Geometry, 2005
We give an effective uniform bound on the multigraded regularity of a subscheme of a smooth projective toric variety X with a given multigraded Hilbert polynomial. To establish this bound, we introduce a new combinatorial tool, called a Stanley filtration, for studying monomial ideals in the homogeneous coordinate ring of X.
Maclagan, Diane, Smith, Gregory G.
openaire   +2 more sources

Uniform descriptions of pseudospin symmetries in bound and resonant states

Physics Letters B
As a continuation of our previous work on the conservation and breaking of the pseudospin symmetry (PSS) in resonant states [Phys. Lett. B 847, 138320 (2023)], in this work, the PSS in nuclear single-particle bound and resonant states are investigated ...
Ting-Ting Sun, Zhi Pan Li
doaj   +1 more source

Spectral gap lower bound for the one-dimensional fractional Schr\"odinger operator in the interval

, 2011
We prove the uniform lower bound for the difference $\lambda_2 - \lambda_1$ between first two eigenvalues of the fractional Schr\"odinger operator, which is related to the Feynman-Kac semigroup of the symmetric $\alpha$-stable process killed upon leaving
Kaleta, Kamil
core   +1 more source