Results 51 to 60 of about 13,257,834 (322)

On a Lower Bound for $\|(4/3)^k\|$ [PDF]

open access: yes, 2014
We prove, that $$ \biggl\|\biggl(\frac43\biggr)^k\biggr\| >\biggl(\frac49\biggr)^k\qquad\text{for}\quad k\ge6, $$ where $\|\cdot\|$ is a distance to the nearest ...
Pupyrev, Yury
core   +1 more source

Lower Bound for the First Steklov Eigenvalue

open access: yesRevista de Ciencias, 2014
In this paper we find lower bounds for the first Steklov eigenvalue in Riemannian n-manifolds, n = 2, 3, with non-positive sectional curvature.
Óscar Andrés Montaño
doaj   +1 more source

A Ginzburg–Landau Type Energy with Weight and with Convex Potential Near Zero

open access: yesMathematics, 2020
In this paper, we study the asymptotic behavior of minimizing solutions of a Ginzburg–Landau type functional with a positive weight and with convex potential near 0 and we estimate the energy in this case.
Rejeb Hadiji, Carmen Perugia
doaj   +1 more source

Reply to “Comments on ‘Rethinking the Lower Bound on Aerosol Radiative Forcing’”

open access: yesJournal of Climate, 2018
This reply addresses a comment questioning one of the lines of evidence I used in a 2015 study (S15) to argue for a less negative aerosol radiative forcing. The comment raises four points of criticism.
B. Stevens
semanticscholar   +1 more source

Variational Bounds for the Generalized Random Energy Model [PDF]

open access: yes, 2006
We compute the pressure of the random energy model (REM) and generalized random energy model(GREM) by establishing variational upper and lower bounds. For the upper bound, we generalize Guerra's ``broken replica symmetry bounds",and identify the random ...
Giardina', Cristian, Starr, Shannon
core   +7 more sources

A Geometric Lower Bound Theorem

open access: yes, 2016
We resolve a conjecture of Kalai relating approximation theory of convex bodies by simplicial polytopes to the face numbers and primitive Betti numbers of these polytopes and their toric varieties. The proof uses higher notions of chordality.
Adiprasito, Karim   +2 more
core   +1 more source

Maximum common subgraph: some upper bound and lower bound results

open access: yesBMC Bioinformatics, 2006
Background Structure matching plays an important part in understanding the functional role of biological structures. Bioinformatics assists in this effort by reformulating this process into a problem of finding a maximum common subgraph between graphical
Jennings Steven F   +2 more
doaj   +1 more source

On the lower bound of Spearman’s footrule

open access: yesDependence Modeling, 2019
Úbeda-Flores showed that the range of multivariate Spearman’s footrule for copulas of dimension d ≥ 2 is contained in the interval [−1/d, 1], that the upper bound is attained exclusively by the upper Fréchet-Hoeffding bound, and that the lower bound is ...
Fuchs Sebastian, McCord Yann
doaj   +1 more source

Treewidth Lower Bounds with Brambles [PDF]

open access: yesAlgorithmica, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bodlaender, H.L.   +2 more
openaire   +5 more sources

Government Spending Multipliers under the Zero Lower Bound: Evidence from Japan

open access: yesAmerican Economic Journal: Macroeconomics, 2018
Using a rich dataset on government spending forecasts in Japan, we provide new evidence on the effects of unexpected changes in government spending when the nominal interest rate is near the zero lower bound (ZLB).
Wataru Miyamoto, T. Nguyen, D. Sergeyev
semanticscholar   +1 more source

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