نتایج جستجو برای: newton
تعداد نتایج: 20039 فیلتر نتایج به سال:
We prove that under semi-local assumptions, the inexact Newton method with a fixed relative residual error tolerance converges Q-linearly to a zero of the non-linear operator under consideration. Using this result we show that Newton method for minimizing a self-concordant function or to find a zero of an analytic function can be implemented with a fixed relative residual error tolerance. In th...
We generalize purity of the Newton stratification to purity for a single break point of the Newton point in the context of local G-shtukas respectively of elements of the loop group of a reductive group. As an application we prove that elements of the loop group bounded by a given dominant coweight satisfy a generalization of Grothendieck’s conjecture on deformations of p-divisible groups with ...
Address: 1Department of Anatomy & Cell Biology College of Medicine, University of Iowa, 1-111 BSB, 51 Newton Road, Iowa City, IA 52242, USA, 2Department of Internal Medicine College of Medicine, University of Iowa, 1-111 BSB, 51 Newton Road, Iowa City, IA 52242, USA and 3The Center for Gene Therapy of Cystic Fibrosis and Other Genetic Diseases, College of Medicine, University of Iowa, 1-111 BSB...
We study local convergence of generalized Newton methods for both equations and inclusions by using known and new approximations and regularity properties at the solution. Including Kantorovich-type settings, our goal are statements about all (not only some) Newton sequences with appropriate initial points. Our basic tools are results of [31], [37] and [40], mainly about Newton maps and modifie...
A Hessian matrix in full waveform inversion (FWI) is difficult to compute directly because of high computational cost and an especially large memory requirement. Therefore, Newton-like methods are rarely feasible in realistic large-size FWI problems. We modify the quasi-Newton BFGS method to use a projected Hessian matrix that reduces both the computational cost and memory required, thereby mak...
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