PageHeader : Funkcialaj Ekvacioj, 12 (1969), 205-220 Title : On the Dirichlet Problem Title : for Second Order Elliptic Differential Equations AuthorInfo : By Kiyoshi AKO)*) AuthorInfo : (University of Tokyo) AuthorInfo : Dedicated to Professor Tokui Sat? on the Occasion of His Retirement section : Introduction. section : 1. Fundamental assumptions. section : 2. Function spaces $W_{1},H_{1}$ and $H_{1}^{\circ}$ . section : 3. Modern solutions and classical solutions. section : 4. Lax-Milgram's theorem. Garding's inequality. section : 5. Mollifiers. section : 6. The case where $\varphi=0$ . section : 7. The main theorem. section : 8. Proof of the main theorem. section : 9. Proof of the main theorem (continued). section : 10. Dirichlet's principle and its app1ication. section : 11. Two remarks. section : Appendix Regularity of solutions near the boundary section : References