德国一般民间的工程合同,并未要求其遵循"《营建工程采购与合同规则》"(die Vergabe-und Vertragsordnung für Bauleistung)。《德国民法》的规定往往不够详细,过去一些民间工程合同常发生争议的问题,民法承揽篇没有规范...德国一般民间的工程合同,并未要求其遵循"《营建工程采购与合同规则》"(die Vergabe-und Vertragsordnung für Bauleistung)。《德国民法》的规定往往不够详细,过去一些民间工程合同常发生争议的问题,民法承揽篇没有规范,只能依赖当事人间的协商和法院的判决。有广泛的判决涉及此一领域,对适用法律的人已经丧失透视性。考虑工程合同的类型、建筑技术的不断发展、内容复杂而特殊、工程合同常有较长的履行期间,累积的判决也使新增专章规范的条件成熟。德国联邦议会审议通过修正工程合同法之法案。将工程合同(§§650 A-650O)、建筑师与工程师合同(§§650P-650T),以及消费者工程合同(§§650U-650V)订入民法之中。立法者修法时所考虑的指示变更动机,引据"履行期较长的复杂工程合同",在个案中未必适用。实务上只要有工程合同存在,不必然需要工程合同履行期是否较长或者较为复杂,均可指示变更。展开更多
The nonlinear Riemann problems were converted into nonlinear singular integral equ ations and the existence of the solution for the problem was proved by means of contract principle.
We address the impact of nonlocality in the physical features exhibited by solitons supported by Kerr-type nonlinear media with an imprinted optical lattice. We discuss the solitons solution for a class of nonlinear S...We address the impact of nonlocality in the physical features exhibited by solitons supported by Kerr-type nonlinear media with an imprinted optical lattice. We discuss the solitons solution for a class of nonlinear SchrSdinger equations in the optical lattice with nonlocal nonlinearity. We also show via a uniform priori estimate that existence and uniqueness of the global solution for the initial problem.展开更多
文摘The nonlinear Riemann problems were converted into nonlinear singular integral equ ations and the existence of the solution for the problem was proved by means of contract principle.
基金Supported by the Natural Science Foundation of Henan Province of China (No.112300410054,No.12A110004)
文摘We address the impact of nonlocality in the physical features exhibited by solitons supported by Kerr-type nonlinear media with an imprinted optical lattice. We discuss the solitons solution for a class of nonlinear SchrSdinger equations in the optical lattice with nonlocal nonlinearity. We also show via a uniform priori estimate that existence and uniqueness of the global solution for the initial problem.
