| 1. | Nonexistence of global solutions for nonlinear wave systems
非线性波动方程组整体解的不存在性
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| 2. | Nonexistences of weak solutions for p - sub - laplacian inequalities on the heisenberg group
不等方程弱解的不存在性
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| 3. | Existence and nonexistence of solutions for a singular p - laplacian involving critical exponent
解的存在性和不存在性
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| 4. | Nonexistence of global positive solutions for quasi - linear parabolic inequalities
拟线性抛物型不等方程整体解的不存在性
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| 5. | Existence and nonexistence of solution for a class nonlinear hyperbolic equation
一类非线性双曲方程整体弱解的存在性与不存在性
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| 6. | Existence and nonexistence of global solutions for a class of semilinear heat equations
一类半线性热方程整体解的存在性与非存在性
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| 7. | And dbm . the crystal is stable in the air due to nonexistence of solvent molecules in the cell
因为晶胞中没有溶剂分子存在，此晶体在空气中很稳定。
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| 8. | Nonexistence and existence criteria for eventually positive solutions of a class of neutral differential equations
一类中立型微分方程最终正解的存在性和不存在性
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| 9. | Global existence and nonexistence for a nonlinear parabolic equation with a nonlinear boundary condition
一类带非线性边界条件的非线性抛物方程的解的整体存在性与不存在性
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| 10. | The imperative mood or the present tense - on the existence or nonexistence of grammatical category of the imperative mood for the english verbs
也谈英语动词祈使语气语法范畴的有无
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