渐变 发表于 2025-3-26 21:42:27
Michael E. Porter,Clemens Guthtes of Penzance, Act I) The question of divisibility is arguably the oldest problem in mathematics. Ancient peoples observed the cycles of nature: the day, the lunar month, and the year, and assumed that each divided evenly into the next. Civilizations as separate as the Egyptians of ten thousand yeplasma 发表于 2025-3-27 02:31:52
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Michael E. Porter,Clemens Guth a continuation of the monograph by one of the authors and N. Ya. Krupnik ~~ concerning scalar equa tions. This set of notes was initiated as a chapter dealing with problems of factorization of matrix functions vis-a-vis appli cations to systems of singular integral equations. Working systematicalNEG 发表于 2025-3-27 13:07:10
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Michael E. Porter,Clemens Guthement is not true. In fact, systems with rather different state spaces may have the same transfer function. For minimal systems this phenomenon does not occur. In Section 7.1 minimal systems are defined as systems that are controllable and observable. The latter two notions are explained in more detmediocrity 发表于 2025-3-27 21:17:58
Michael E. Porter,Clemens Guthement is not true. In fact, systems with rather different state spaces may have the same transfer function. For minimal systems this phenomenon does not occur. In Section 7.1 minimal systems are defined as systems that are controllable and observable. The latter two notions are explained in more detforebear 发表于 2025-3-28 00:43:57
http://reply.papertrans.cn/83/8245/824430/824430_37.pnghypertension 发表于 2025-3-28 05:17:17
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Michael E. Porter,Clemens Guth applications. A uni?ed approach to treat them is developed. The main theorems yield explicit necessaryand su?cient conditions for the factorizations to exist and explicit formulas for the corresponding factors. Stability of the factors relative to a small perturbation of the original function is al说明 发表于 2025-3-28 12:34:54
Michael E. Porter,Clemens Guth factorability of its coefficient, i.e. the matrix function G. It is well-known that in the classical case, if we seek for a solution of the Riemann problem with a Hölder matrix G, the factorability of G is equivalent to the Fredholmness of the boundary value problem. The transition to the solution