Proof for the necessity of Dirichlet criterion

Study on the discriminance of battery charged state;

The analytic geometry method is applied to analyze the subjects on Descriptive Geometry,which provides discriminance analysis on whether there is solution and whether drawing instruments could be directly used for drafting.

The necessary and sufficient of Dirichlet and Abel distinguish methods in the Directly-Riemann integral;

The discrimination method is firstly applied to evaluate the resource potential of oilfields.

The comparision to the ratio value criterion of the positive series based on p-series s convergence and divergence;

In this paper ,new criterion of convergence and divergence for infinite series is given by means of the convergence and divergence of infinite integral.

This paper intends to propose another criterion,which is proved to be precise and better than those in Paper 1 by comparison.

Compares the distinguishing methods of dry or wet conditions,and summarizes the control methods ensuring dry condition operation of the fan-coil.

In this paper, we study some properties and distinguishing methods of LP minimizing sequence on constrained convex optimization problems in R~N space.