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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：An Inexact Projected Subgradient Method on Hadamard manifolds
哈达玛流形 不精确投影 亚梯度方法
2023/5/4
In this talk, we extend a recently established subgradient method for the computation of Riemannian metrics that optimizes certain singular value functions associated with dynamical systems. This exte...
The dual weighted residual (DWR) method yields reliable a posteriori error bounds for
linear output functionals provided that the error incurred by the numerical approximation of the
dual solution i...
ON MOTIVIC DECOMPOSITIONS ARISING FROM THE METHOD OF BIA LYNICKI-BIRULA
DECOMPOSITIONS ARISING BIA LYNICKI-BIRULA
2015/9/29
Recently, V. Chernousov, S. Gille and A. Merkurjev have
obtained a decomposition of the motive of an isotropic smooth projective
homogeneous variety analogous to the Bruhat decomposition. Using the
...
An efficient method for large-scale slack allocation
timing graph slack allocation delay budgeting convex optimization truncated Newton method
2015/8/7
We consider a timing or project graph, with given delays on the edges and given arrival times at the source and sink nodes. We are to find the arrival times at the other nodes; these determine the tim...
A semidefinite programming method for integer convex quadratic minimization
The quadratic function the probability of integer zinc, values
2015/8/7
We consider the NP-hard problem of minimizing a convex quadratic function over the integer lattice Zn. We present a semidefinite programming (SDP) method for obtaining a nontrivial lower bound on the ...
Computing the $\sin_{p}$ function via the inverse power method
Computing the $\sin_{p}$ function the inverse power method
2010/11/22
In this paper, we discuss a new iterative method for computing $\sin_{p}$. This function was introduced by Lindqvist in connection with the unidimensional nonlinear Dirichlet eigenvalue problem for t...
Extending a Hybrid Godunov Method for Radiation Hydrodynamics to Multiple Dimensions
Hybrid Godunov Method Radiation Hydrodynamics Multiple Dimensions
2010/12/15
This paper presents a hybrid Godunov method for three-dimensional radiation hydrodynamics.
The multidimensional technique outlined in this paper is an extension of the one-dimensional method that was...
Dykstra’s Algorithm as the Nonlinear Extension of Bregman's Optimization Method
Bregman projection convex programming Dykstra's algorithm
2009/1/22
We show that Dykstra's algorithm with Bregman projections, which finds the Bregman projection of a point onto the nonempty intersection of finitely many closed convex sets, is actually the nonlinear e...