专心
发表于 2025-3-26 23:58:20
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Retrieval
发表于 2025-3-27 03:47:52
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Apogee
发表于 2025-3-27 08:47:44
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预兆好
发表于 2025-3-27 09:47:15
Jana Obrovskádel reduction is an important engineering problem in which one aims to replace an elaborate model by a simpler model without undue loss of accuracy. The accuracy can be mathematically measured in several possible norms and the Hankel norm is one such. The Hankel norm gives a meaningful notion of dis
MAPLE
发表于 2025-3-27 14:05:46
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某人
发表于 2025-3-27 19:24:07
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江湖郎中
发表于 2025-3-27 23:40:34
Jana Obrovská func tions. Hankel operators can be defined as operators having infinite Hankel matrices (i. e. , matrices with entries depending only on the sum of the co ordinates) with respect to some orthonormal basis. Finite matrices with this property were introduced by Hankel, who found interesting algebr
Vulnerable
发表于 2025-3-28 03:36:02
aus dem vielfältigen Werk der stehung derfünfundzwanzig Blätter zu den Preludes von 1975 im Alter von siebenundsechzig Jahren verstorbe Chopin, einer geschlossenen, vieles zusammenfassen den und verdichtenden Bilderfolge inmitten des Zyklus nen Zeichnerin Hanna Nagel wird sichtbar gemacht, frei