support by the "Eleventh Five-Year" National Science and Technology Support Program (No. 2006BAB01A02);the Pivot Program of the National Natural Science Fund (No. 40930314)
The conventional gravity gradient method to plot the geologic body location is fuzzy. When the depth is large and the geologic body is small, the Vzz and Vzx derivative errors are also large. We describe that using th...
本文就星形树与m-C4并图的优美性进行探讨,证明了当m≥2这类图Stp∪m-C4是优美图.并对星形树St与∪from i=1 to n mi-C4并图St∪from i=1 to n mi-C4的优美性进行探讨.证明了当maxmi≥3 i=1,2,...,n这类图St∪from i=1 to n mi-C4是优美图.