Results 41 to 50 of about 24,650 (145)
Reference-State One-Particle Density-Matrix Theory
, 2003 A density-matrix formalism is developed based on the one-particle density-matrix of a single-determinantal reference-state. The v-representable problem does not appear in the proposed method, nor the need to introduce functionals defined by a constrained
Finley, James P.
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Lower Bounds on Regret for Noisy Gaussian Process Bandit Optimization [PDF]
, 2017 In this paper, we consider the problem of sequentially optimizing a black-box function $f$ based on noisy samples and bandit feedback. We assume that $f$ is smooth in the sense of having a bounded norm in some reproducing kernel Hilbert space (RKHS ...
Bogunovic, Ilijia +2 more
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Improving convergence in smoothed particle hydrodynamics simulations without pairing instability
, 2012 The numerical convergence of smoothed particle hydrodynamics (SPH) can be severely restricted by random force errors induced by particle disorder, especially in shear flows, which are ubiquitous in astrophysics.
Abel +41 more
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Self-mappings of the quaternionic unit ball: multiplier properties, Schwarz-Pick inequality, and Nevanlinna--Pick interpolation problem [PDF]
, 2013 We study several aspects concerning slice regular functions mapping the quaternionic open unit ball into itself. We characterize these functions in terms of their Taylor coefficients at the origin and identify them as contractive multipliers of the Hardy
Alpay, Daniel +3 more
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Growth–fragmentation–coagulation equations with unbounded coagulation kernels
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020 In this paper, we prove the global in time solvability of the continuous growth–fragmentation–coagulation equation with unbounded coagulation kernels, in spaces of functions having finite moments of sufficiently high order. The main tool is the recently established result on moment regularization of the linear growth–fragmentation semigroup that allows
J. Banasiak, W. Lamb
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Transport equations via smooth kernels
, 2021 In this thesis we study the non-linear non-local transport equation. This partial differential equation describes the evolution of a scalar which is transported by a velocity field. The field and the scalar are related through the convolution of the latter with a chosen kernel.
Cantero Guardeño, Juan Carlos +1 more
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Efficiency Analysis of Item Response Theory Kernel Equating for Mixed-Format Tests. [PDF]
Appl Psychol Meas, 2023 Wallmark J, Josefsson M, Wiberg M.
europepmc +1 more source
How Important is the Choice of Bandwidth in Kernel Equating? [PDF]
Appl Psychol Meas, 2021 Wallin G, Häggström J, Wiberg M.
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, 2005 We formulate three-dimensional equations for the finite temperature in-matter three-body problem. Our approach takes into account the full infinite series for the effective pair-interaction kernel, so that all possible two-body sub-processes allowed by ...
Blankleider, B., Kvinikhidze, A. N.
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Bessel Kernel Determinants and Integrable Equations
Annales Henri PoincaréV1: 22 pages. V2: 26 pages, major revision, assumptions on $\sigma$ changed, results unchanged.
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