Kronecker Delta and vector form of q_(i,j) q_(m,mj)by Romik Tags: divergence, gradient, index notation, kronecker delta, vector form 

#1
Dec512, 03:18 PM

P: 13

guys,
we know ∇q=q_{i,j} and ∇ ∇.q=q_{i,ij} but what will happen if we have q_{i,j}q_{m,mj} ? (sum on j) I know some terms of ∇q∇ ∇.q will drop due to that summation. so the question is what is the right expression in vector form for that term. thanks 


Register to reply 
Related Discussions  
Is the delta in the commutation relations of QFT a dirac delta or a kronecker?  Quantum Physics  6  
Form of Kronecker Delta Not Recognized in Mathematica  Math & Science Software  3  
Covariant vector differentiation problem with kronecker delta?  Differential Geometry  7  
Vector field identity derivation using Einstein summation and kronecker delta.  Calculus & Beyond Homework  2  
Linear & Vector Algebra: Kronecker delta & LeviCivita symbol  Calculus & Beyond Homework  13 