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Fast Solution of `1-norm Minimization Problems When the Solution May be Sparse
LASSO. LARS Homotopy Methods Basis Pursuit.
2015/8/21
The minimum `1-norm solution to an underdetermined system of linear equations y = Ax,
is often, remarkably, also the sparsest solution to that system. This sparsity-seeking property
is of interest i...
ω1 and −ω1 May Be the Only Minimal Uncountable Linear Orders
ω1 and − ω1 May Only Minimal Uncountable Linear Orders
2015/8/17
In 1971 Laver proved the following result, confirming a long-standing conjecture of Fraïssé. Theorem 1.1 [10]. If Li (i < ω) is a sequence of σ-scattered linear orders, then there exist i < j suc...
New mathematical theory may explain patterns in fingerprints, raisins, and microlenses
mathematical theory patterns in fingerprints raisins microlenses
2015/3/4
As a grape slowly dries and shrivels, its surface creases, ultimately taking on the wrinkled form of a raisin. Similar patterns can be found on the surfaces of other dried materials, as well as in hum...
Kirks invariant may have mixed terms
2007/7/28
期刊信息
篇名
Kirk's invariant may have mixed terms
语种
英文
撰写或编译
撰写
作者
李贵松
第一作者单位
中国科学院系统科学研究所
刊物名称
Math. Proc. Cambridge Phil. Soc.
页面
vol.125, pp.425-431
出版日期
1999年
月
日
文章标识(ISSN)
0305-0041
相关项目
代数拓扑与微分拓扑
November 14, 2006，An MIT researcher's mathematical model explains for the first time the distinctive structure of collagen, a material key to healthy human bone, muscles and other tissues. The new mod...