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- Yes, if we write them as rank-2 symmetric tensor fields, they satisfied Einstein equation.However, it is not clear how big a deal this is, since diffeomorphism is put in before hand. 在近似下,弦論可以得出廣義相對論,從而一切證實(shí)廣義相對論的實(shí)驗都是對弦論的支持。
- The more general case of a tensor field is similar but more complicated. 較普遍的張量場(chǎng)情況大致相似,但是更為復雜。
- Based on the general solution of a kind of linear tensorial equations, the invariant representation of the spin of a symmetric tensor is obtained. 基于對一類(lèi)線(xiàn)性張量方程的一般解法,導出了任一對稱(chēng)張量所對應的自旋張量的絕對表示。
- completely skew symmetric tensor 完全(斜)對稱(chēng)張量
- Secondly, the diffusion tensor field of the gray image at each pixel is calculated and applied to construct weighted gradient field, thus to create a divergence-based colorization equation. 然后計算每個(gè)像素的擴散張量,并利用這些擴散張量構造加權梯度場(chǎng),從而導出基于散度的圖像彩色化方程;
- A nonlinear tensor-valued weighted directional-distance filtering method is proposed for regularizing the diffusion tensor field produced by diffusion tensor magnetic resonance imaging. 為了正則化擴散張量磁共振成像所產(chǎn)生的擴散張量場(chǎng),提出了一種非線(xiàn)性張量值加權方向-距離濾波方法。
- tensor field of complex structure 張量場(chǎng)
- alternating covariant tensor field 共變交錯張量場(chǎng)
- The field artillery pounded away at the for tress. 野戰炮兵連續炮擊那座要塞。
- The crowd cheered as the teams entered the field. 球隊入場(chǎng)時(shí)觀(guān)眾們?yōu)橹畾g呼。
- On the map the drains of each field are laid sown. 地圖上標有每一塊地的排水溝。
- Right-handed batters usually hit to left field. 右撇子擊球手把球打到左外野。
- symmetric tensor 對稱(chēng)張量
- The runaway horse was cornered in a field. 那匹跑掉的馬在田地里被圈住了。
- skew symmetric tensor 斜對稱(chēng)張量
- Tent is used by camper and by soldier in the field. 露營(yíng)的人和戰地的士兵用帳篷。
- The children had a field day with their new toys. 孩子們玩新玩具玩得十分開(kāi)心。
- An oil well blew out in the oil field. 油田里有一口油井發(fā)生井噴。
- He is an adventurer in financial field. 他是金融領(lǐng)域的投機者。
- inverse symmetric tensor 反對稱(chēng)張量