页面历史
2020年10月24日 (星期六)
→Finite element method
+56
→Finite element method
-2
→Numerical solutions
+15
→Semianalytical methods
+19
→Lie group method
+215
→Methods for non-linear equations
+90
→Superposition principle
+1
→Analytical solutions
+1
→Superposition principle
-2
→Superposition principle
+284
→Fundamental solution
-9
→Fundamental solution
+8
→Change of variables
-44
→Separation of variables
-2
→Analytical solutions
-614
→Infinite-order PDEs in quantum mechanics
+126
→Equations of mixed type
+16
→Equations of mixed type
+30
→Existence and uniqueness
-1
→Existence and uniqueness
+1
无编辑摘要
-6
→Systems of first-order equations and characteristic surfaces
+686
→Classification
+888
2020年10月23日 (星期五)
→Notation
-234
→Introduction
+8
→Existence and uniqueness
+23
→Existence and uniqueness
+72
→Introduction
-237
→Introduction
→Introduction
-5
→Introduction
+119
→Introduction
-10
无编辑摘要
无编辑摘要
无编辑摘要
+3
无编辑摘要
+104