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Lower bounds for resonance widths in potential and obstacle scattering
(1990)
Explicit lower bounds are given for the size of the imaginary parts of resonances for Schrodinger operators with non-trapping or trapping potentials, and for the Dirichlet Laplacian in the exterior of a star-shaped obstacle, ...
The single machine earliness and tardiness scheduling problem: lower bounds and a branch-and-bound algorithm
(SOC BRASILEIRA MATEMATICA APLICADA & COMPUTACIONAL, 2010)
This paper addresses the single machine scheduling problem with a common due date aiming to minimize earliness and tardiness penalties. Due to its complexity, most of the previous studies in the literature deal with this ...
Lower complexity bounds for interpolation algorithms
(Academic Press Inc Elsevier Science, 2011-04)
We introduce and discuss a new computational model for the HermiteLagrange interpolation with nonlinear classes of polynomial interpolants. We distinguish between an interpolation problem and an algorithm that solves it. ...
Average complexity of exact and approximate multiple string matching
(ELSEVIER, 2004-08-16)
We show that the average number of characters examined to search for r random patterns of length m in a text of length n over a uniformly distributed alphabet of size a cannot be less than Omega(n log(sigma)(rm)/m). When ...
Statistical Query Algorithms for Mean Vector Estimation and Stochastic Convex Optimization
(INFORMS, 2021)
Stochastic convex optimization, by which the objective is the expectation of a random convex function, is an important and widely used method with numerous applications in machine learning, statistics, operations research, ...
Quiz Games as a model for Information Hiding
(Academic Press Inc Elsevier Science, 2016-06)
We present a general computation model inspired in the notion of information hiding in software engineering. This model has the form of a game which we call quiz game. It allows in a uniform way to prove exponential lower ...