... Euclidean plane geometry 欧几里得几何 With Some Plane Geometry 加上一些平面几何学 affine plane geometry 仿射平面几何 ...
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The symmetry algebras of 1 + 1 dimensional nonlinear evolution equation arising from the motion of plane curve in affine geometry are systematically studied.
系统地研究了来自于射影几何中平面曲线运动的1 + 1维非线性方程的对称代数。
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