Tensor Analysis

Appendix A: Formulary

Overview

For convenience we list here the main tensor formulas obtained in each chapter. Note: the symbol ? denotes the universal quantifier (read as "for all" or "for every").

Chapter 2

Reciprocal (dual) basis

Kronecker delta symbol


Definition of reciprocal basis


Components of a vector


Relations between dual bases


where


and


Metric coefficients


In Cartesian frames,


Dot products in mixed and unmixed bases


Raising and lowering of indices


Frame transformation

Equations of transformation


where


Vector components and transformation laws


and


Miscellaneous

Permutation (Levi-Civita) symbol


Useful identities


Determinant of Gram matrix


Cross product


Chapter 3

Dyad product

Properties


Dot products of dyad with vector


Tensors from operator viewpoint

Equality of tensors


Components


Definition of sum A+B


Definition of scalar multiple c A


Definition of dot product A B


Definition of pre-multiplication y A


Definition of unit tensor E


Unit tensor components


Inverse tensor


Nonsingular tensor A


Determinant of a tensor


Dyadic components under transformation

Transformation to reciprocal basis


More general transformation





where


More dyadic operations

Dot product



Double dot product


Second rank tensor topics

Transpose







Tensors raised to powers




Symmetric and antisymmetric tensors



Eigenpair


Vi te formulas for invariants


Orthogonal tensor


Polar decompositions


Chapter 4

Vector fields

Some rules for differentiating vector functions



and


where


Tangent vectors to coordinate lines


Jacobian


Pointwise definition of reciprocal basis


Definition of metric coefficients


Transformation laws



Differentials and the nabla operator

Metric forms


Nabla operator


Gradient of a vector function


Divergence of vector


Rotation and curl of vector


Divergence and rotation of second-rank tensor


Differentiation of a...

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