Because of the fundamental solutions, there are weakly and strongly singular integrals in the integral equations, where r is the distance between the source and the field points.

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We avoid of assuming that the interior of the ordering cone is not empty and the cone has a compact base or a weakly compact base, but consider Benson proper efficiency in the framework of sparable locally convex metric spaces.

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Sign symmetric matrix;anti sign symmetric matrix;weakly sign symmetric matrix;spectral property

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At first, the paper quote a kind of special matrix ---sign symmetric matrix , anti sign symmetric matrix , weakly sign symmetric matrix and introduced some important results in spectral property about them from some bibliographies. And then, the paper extended the formerly results and gave more general conclusions about spectral property of sign symmetric matrix.

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Using two-dimensional numerical simulation of the full hydrodynamic equations, the dynamics of the counterpropagating wave, localized traveling wave and stationary overturning convection with the weakly Soret coefficient is studied.

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The effect of inequality on investment overweighs its effect on education, so inequality has a strong indirect effect on growth instantaneously. The effect turns positive and then weakly negative.

3收入差距對于投資的影響超過了對于教育的影響，因此收入差距對于經(jīng)濟增長的間接影響在即期也是非常強的負91亚洲国产系列精品第，之后變?yōu)檎蘸悠蹬访涝谙咭磺僦饾u下降至微弱的負影響。

The major findings are :（ 1 ） Inequality has strong instant negative effect on investment. The effect turns to be positive and then falls down gradually until weakly negative.

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In the long run, the cumulative effect of inequality on investment is negative.（2） Inequality has moderate effect on education, and the cumulative effect is positive.（3） The effect of inequality on investment overweighs its effect on education, so inequality has a strong indirect effect on growth instantaneously. The effect turns positive and then weakly negative.

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Uniqueness of the global weakly strong solution and global strong solution for the probem were obtained.

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Meanwhile, we have gotten stability for the subdifferential of cone efficient point sets and cone weakly efficient point sets of multiobjective programming with respect to perturbation of cone respectively.

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