标题： 借助计算机代数系统GRG-EC搜索爱因斯坦-麦克斯韦方程的电真空解 显示英文标题

标题： Searching for electrovac solutions to Einstein--Maxwell equations with the help of computer algebra system GRG-EC

摘要： 专用计算机代数系统Grg-EC在寻找无源麦克斯韦方程和爱因斯坦-麦克斯韦方程解的应用示例得到了展示。 涉及两个变量的五个任意函数的解以显式形式给出（至积分）。 强调了所使用软件的特性。 显示英文摘要

摘要： An example of application of the specialized computer algebra system Grg-EC to the searching for solutions to the source-free Maxwell and Einstein--Maxwell equations is demonstrated. The solution involving five arbitrary functions of two variables is presented in explicit form (up to quadratures). An emphasis is made on the characterizing of the software utilized.