EN
CONTENTS
Introduction.......................................................................................6
1. Definition of certain special forms...........................................6
2. Statement of results...................................................................8
3. Proof of Theorem 2.....................................................................9
4. Preliminaries for Theorem 1.....................................................10
5. Further preliminaries for Theorem 1.......................................15
6. Construction for Theorem 1......................................................18
7. The case $B_4 ⊄ ƒ_n, C_5 ⊄ ƒ_n$ of Theorem 1..............21
8. The case $B_5 ⊄ ƒ_n$ of Theorem 1....................................24
9. Further construction for the case $B_5 ⊂ ƒ_n ≥ 7$............26
10. The case $E_6 ⊄ ƒ_n$...........................................................30
11. Preliminaries for the case $E_6 ⊂ ƒ_n$.............................32
12. Proof of Theorem 1 for $E_8 ⊄ ƒ_n$ and for n ≥ 10.........34
13. Completion of proof of Theorem 1........................................38
14. Conclusion.................................................................................40
References.......................................................................................42