Results 51 to 60 of about 734,348 (361)
Validity of the Brunet-Derrida formula for the speed of pulled fronts with a cutoff
, 2007 We establish rigorous upper and lower bounds for the speed of pulled fronts with a cutoff. We show that the Brunet-Derrida formula corresponds to the leading order expansion in the cut-off parameter of both the upper and lower bounds.
Aronson +13 more
core +2 more sources
Upper and Lower Bounds for Sums of Random Variables. [PDF]
Insurance: Mathematics and Economics, 2000 In actuarial sciences, the stop-loss order and convex order concepts are closely related, hence it seems naturally to study upper and lower bounds for sums \(X_1 + X_2 + \ldots + X_n\) of dependent random variables in the sense of convex order. The paper gives such an answer, under mild hypothesis: the marginal distribution of each \(X_i\) is known ...
R. Kaas, Jan Dhaene, M. Goovaerts
semanticscholar +6 more sources
Improved bounds and new techniques for Davenport-Schinzel sequences and their generalizations
, 2009 Let lambda_s(n) denote the maximum length of a Davenport-Schinzel sequence of order s on n symbols. For s=3 it is known that lambda_3(n) = Theta(n alpha(n)) (Hart and Sharir, 1986).
Gabriel Nivasch +3 more
core +2 more sources
Pythagorean Theorem & Curvature with Lower or Upper Bound
Chinese Annals of Mathematics, Series B, 2022 16pages
Su, Xiaole, Sun, Hongwei, Wang, Yusheng
openaire +3 more sources
New upper and lower bounds for the upper incomplete gamma function
Results in Applied MathematicsSome new upper and lower bounds for the upper incomplete gamma function Γ(a,x) are presented. Some of the bounds are given for all real x>0 and some are for only certain combinations of a and x.
Steven G. From, Suthakaran Ratnasingam
doaj +1 more source
FEBS Letters, EarlyView.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
Vacuolar transport and function of Saccharomyces cerevisiae sterol ester hydrolase Tgl1
FEBS Letters, EarlyView.Tgl1, one of yeast sterol ester hydrolases, had been found on the lipid droplets where sterol esters are mainly stored. This study revealed that Tgl1 is transported into the vacuole depending on the ESCRT‐I–III complex, and that it exhibits intra‐vacuolar sterol ester hydrolase activity.
Takumi Nakatsuji +5 more
wiley +1 more source
Estimating Upper and Lower Bounds on the Performance of Word-Sense Disambiguation Programs
Annual Meeting of the Association for Computational Linguistics, 1992 We have recently reported on two new word-sense disambiguation systems, one trained on bilingual material (the Canadian Hansards) and the other trained on monolingual material (Roget's Thesaurus and Grolier's Encyclopedia).
W. Gale +2 more
semanticscholar +1 more source
Upper and lower bounds on the integrated null energy in gravity
Journal of High Energy Physics, 2019 We prove a lower bound on the integrated null energy along achronal geodesic segments using induced gravity on a brane in AdS/CFT. The bound follows from the assumption that bulk causality respects brane causality, and matches a bound recently ...
Stefan Leichenauer, Adam Levine
doaj +1 more source
Minimax perturbation bounds of the low-rank matrix under Ky Fan norm
AIMS Mathematics, 2022 This paper considers the minimax perturbation bounds of the low-rank matrix under Ky Fan norm. We first explore the upper bounds via the best rank-$ r $ approximation $ \hat{A}_r $ of the observation matrix $ \hat{A} $.
Xinyu Qi, Jinru Wang, Jiating Shao
doaj +1 more source