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On best simultaneous approximation in quotient spaces 总被引:1,自引:1,他引:0
M. Iranmanesh H. Mohebi 《分析论及其应用》2007,23(1):35-49
We assume that X is a normed linear space, W and M are subspaces of X. We develop a theory of best simultaneous approximation in quotient spaces and introduce equivalent assertions between the subspaces W and W + M and the quotient space W/M. 相似文献
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