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作者:Muller Detlef
来源:[J].Communications in Partial Differential Equations(IF 1.025), 2019, Vol.17 (1-2), pp.305-337Taylor & Francis
摘要:We study questions of solvability for operators of the form p(x,D)+b, where p(x,ξ) is a real quadratic form and bεC. As one consequence, we obtain a necessary and sufficient condition for the local solvability of operators of the form L= near the critical point x=0, and prov...
作者:BAUER HARTMUT ; MULLER DETLEF ; SIMON BERND
来源:[P].EP88113893A 1989-3-29  CNKI
摘要:The swivellable handle arrangement on opposite projections (3) of plastic containers is particularly suitable for injection moulding manufacture of buckets and their handles in one cycle. The essential feature is the additional construction of an inner intermediate web (10) at a ...
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