Nabla or del

The mathematical operator V, called Nabla or del, appearing in Eq. (7-6) has the structure ... 

In (1.25), the terms inside the brackets can be reformulated by use of vector and tensor notations. By comparing the terms inside the brackets with the mathematical definitions of the nabla or del operator, the vector product between this nabla operator and the mass flux vector we recognize that these... 

The terms and symbols used in this equation have the following meaning. Cj is the molar concentration of species j (kmol/m fluid), so that dCj/dt is the non-steady-state term expressing accumulation or depletion. V is the nabla or del operator. In a rectangular coordinate system, x, y, z with unit vectors Sy, and 8, the gradient of a scalar function / is represented by V/ and the divergence... 

Space distribution, derivation/space (continuous case) [space-time] Derivation/space ( Nabla or Del ) (continuous case) [space-time] Space-time operator (continuous case) [space-time]... 

Equation (44) suggests that a vector operator V or nabla (called del") be defined in Cartesian coordinates by... 

The recurring vectorial operator V, known as del or nabla, is a differential operator that, in rectangular coordination is defined as ... 

Ski Slopes," "Hernias", and Curls. In Cartesian space the "del" (or nabla = Assyrian harp or atled = "backwards delta") operator or function V is given by... 

Differentiation of a tensor with respect to a scalar does not change its rank. The spatial differentiation of a tensor raises its rank by unity, and identical to multiplication by the vector V, called del or Hamiltonian operator or the nabla... 

Here N plays the role of an imaginary time, the Laplacian operator 7 (del or nabla squared) acts upon the variable r and P is the mean square length of a segment. Since a short chain must have its ends in close proximity to one another, the appropriate boundary condition is... 

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