A new model to predict the annual maximum ice thickness by means of combining Levenberg Marquardt neural network(NN)with time serial method is presented in this paper.

Binary implicit function Extreme Problems;

Extreme Statistics on the Application of Catastrophe Insurance;

The rock bit diameter is calculated through determination of the extreme values with the calculation formula presented.

Some methods of deciding the extreme values for the monadic functions and two-place functions were applied to decide the extreme values for the multivariate functions and then some effective methods of deciding the extreme values for the multivariate functions were presented.

The extreme conditions for the monovariate functions were applied to the multivariate functions and then an effective method to decide the extreme values for the multivariate functions was presented.

Estimation of chaos system parameters by using extremum point;

Calculation on transmission ratio extremum of grab operating mechanism based on Matlab;

A Generalization and Application of The Second Sufficient Condition of Judging Extremum;

Variation of extreme values of domestic storms and floods in 20th Century;

Inter-decadal change of the rainstorm and flood extreme values in the 20th century;

Two full conditions for extreme value problem;

elliptic maximum principle and krein-Rutman theory with parabolic maximum principle and operator semigrou;

Methods The maximum principle,monotone method,bifurcation theory,the perturbation theorem for linear operators and the stability theorem for bifurcation solutions were used.

In this paper we yield a inequality of the deficiency sum of any meromorphic function and its all order derived functions, and discuss some functions whose ail derived functions deficiency sum arrives at maximum 2.