penance 发表于 2025-3-26 21:50:35

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按等级 发表于 2025-3-27 02:57:50

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刚开始 发表于 2025-3-27 05:38:16

J. Engelbrechtitation. The feeling that these products are now too cheap for the good of future generations, that they are being selfishly exploited at too rapid a rate, and that in consequence of their excessive cheapness they are being produced and consumed wastefully has given rise to the conservation movement

lacrimal-gland 发表于 2025-3-27 12:29:58

A. Jeffrey,H. H. Daithe general welfare corresponds to the sale of everything at marginal cost. This means that toll bridges, which have recently been reintroduced around New York, are inefficient reversions; that all taxes on commodities, including sales taxes, are more objectionable than taxes on incomes, inheritance

Pamphlet 发表于 2025-3-27 17:18:15

D. Fusco,N. Manganarothe general welfare corresponds to the sale of everything at marginal cost. This means that toll bridges, which have recently been reintroduced around New York, are inefficient reversions; that all taxes on commodities, including sales taxes, are more objectionable than taxes on incomes, inheritance

Insufficient 发表于 2025-3-27 19:20:58

V. E. Fridmanivate p:;tpers, correspondence and manuscripts to the Butler Library, Columbia University. This is a most appropriate place for them to reside, in that Hotelling‘s most productive period as an active researcher in eco­ nomics and statistics coincides with the years when he was Professor of Mathemati

Explicate 发表于 2025-3-27 22:27:36

A Variable Coefficient Version of Zakharov and Shabat’s Method: With Applications to the Integrationicient nonlinear equations. As an example, we show that if the variable coefficient b.(x,t) in their method satisfies the KdV equation ., then the nonlinear equation . is solvable through the inverse scattering transform by means of the extended procedure. We construct the one-soliton solution which

GLUE 发表于 2025-3-28 03:59:46

Steady Waves in Active Birelaxating Mediaequency relaxation being negative and a higher frequency one describing the absorption. In such a medium the change of the increment by the damping decrement takes place and under the definite relations between the relaxation frequency and the increment and decrement values, the existence of a stead

Terminal 发表于 2025-3-28 08:22:44

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Custodian 发表于 2025-3-28 10:56:27

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查看完整版本: Titlebook: Nonlinear Waves in Active Media; Professor Jüri Engelbrecht Conference proceedings 1989 Springer-Verlag Berlin Heidelberg 1989 Nichlineare