Note
่จ่ไธ้็ฏ็จ ๅไปฃ
ไธไฝ่ๆ ฎๆๆ tensor ็ direct sum๏ผๅฐฑๆงๆไบ tensor algebra
ๆงๆ associative algebra
- ่็ฑ reshape tensor matrix ็บ vector๏ผๅฏไปฅ็ๅบๅ ๆณ็ขบๅฏฆๆฏ associative ็
- ๅ ็บ tensor product ๅชๆฏๆๆดๅค vectors ๆพๅ ฅ๏ผๅ ๆญค่็ตๅๅ ๅพ้ ๅบ็ก้
natural contraction
ๅฎ็พฉ็บ