Table of Contents
What is a 0 2 tensor?
The product of two one- forms, written as defines a linear map which takes two vectors into the reals: It is therefore a 0/2 tensor.
What is a 0 tensor?
A zero tensor is a tensor of any rank and with any pattern of covariant and contravariant indices all of whose components are equal to 0 (Weinberg 1972, p. Weinberg, S. Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity.
What is the dot product of two tensors?
The double dot product of two tensors is the contraction of these tensors with respect to the last two indices of the first one, and the first two indices of the second one. Whether or not this contraction is performed on the closest indices is a matter of convention.
What is a tensor in continuum mechanics?
A tensor is a linear mapping of a vector onto another vector.
What does a dot product of 0 mean?
A dot product of two vectors is the product of their lengths times the cosine of the angle between them. If the dot product is 0, then either the length of one or both is 0, or the angle between them is 90 degrees.
What does the dot product tell you?
The dot product essentially tells us how much of the force vector is applied in the direction of the motion vector. The dot product can also help us measure the angle formed by a pair of vectors and the position of a vector relative to the coordinate axes.
What is third order tensor?
A tensor is a multidimensional array, where the order of tensor denotes the dimension of the array. Analogous to rows or columns of a matrix, 3rd-order tensors have fibers. Since there are 3 dimensions to a 3rd-order tensor there are 3 types of fibers generated by holding two of the indexes constant.
Which of the following is a tensor of order 0?
scalar α
A tensor of order zero is simply another name for a scalar α . A first-order tensor is simply another name for a vector u.
Which of the following is the tensor of rank zero?
scalar
Tensor Rank
rank | object |
---|---|
0 | scalar |
1 | vector |
2 | matrix |
tensor |