Nature displays an infinite array of geometric shapes from the small atom to the greatest of the spiral galaxies, crysta......

In order to study the distribution and evolution features of saline soil, the correlations between the groundwater depth......

Part Ⅰ Language faithfully reflects the spirit of the age. As soiecity develops,new ideas are being conceived.and expre......

分别给出了线性不定方程组与线性同余式组是否有解的判别条件 ,给出了线性同余式组的解数公式 ,改进和推广了一些经典定理 .......

约翰·密尔是19世纪英国自由主义和功利主义的代表人物,自由和功利是他思考各种社会问题的核心标准。密尔在自由主义基础上论......

We obtain some theorems for real increasing functions showing that elementary fixed point theory can bring to astonishin......