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  1. What, Exactly, Is a Tensor? - Mathematics Stack Exchange

    Every tensor is associated with a linear map that produces a scalar. For instance, a vector can be identified with a map that takes in another vector (in the presence of an inner product) and produces …

  2. What Is a Tensor? The mathematical point of view.

    Jan 26, 2025 · A tensor itself is a linear combination of let’s say generic tensors of the form . In the case of one doesn’t speak of tensors, but of vectors instead, although strictly speaking they would be …

  3. What exactly is a tensor product? - Mathematics Stack Exchange

    This is a beginner's question on what exactly is a tensor product, in laymen's term, for a beginner who has just learned basic group theory and basic ring theory. I do understand from wikipedia th...

  4. Definition of Second-Order Tensor by Jim Adrian - Physics Forums

    Sep 20, 2020 · A second-order tensor is comprised at least of a two-dimensional matrix, as an nth-order tensor is comprised at least of an n-dimensional matrix, but what else is in the formal definition. A …

  5. Difference Between Tensor and Tensor field? - Mathematics Stack …

    A tensor field has to do with the notion of a tensor varying from point to point . A scalar is a tensor of order or rank zero , and a scalar field is a tensor field of order zero .

  6. What is a Rank 3 Tensor and Why Does It Matter? - Physics Forums

    May 10, 2007 · Hello Gals, I know what a scalar is. I know what a vector is. I know what a linear transformation is. But what in the name of sweet aunt petunia is a rank 3 tensor? Love, Plx Mny

  7. What does the dot product of a tensor and a vector represent?

    The meaning of the dot product of two vectors has been well explained below: What does the dot product of two vectors represent? What is physical interpretation of dot product? [duplicate] But, what …

  8. How to caculate the inverse metric tensor • Physics Forums

    Apr 26, 2012 · Given a metric tensor gmn, how to calculate the inverse of it, gmn. For example, the metric g_ {\mu \nu }= \left [ \begin {array} {cccc} f & 0 & 0 & -w \\...

  9. terminology - What is the history of the term "tensor"? - Mathematics ...

    tensor - In new latin tensor means "that which stretches". The mathematical object is so named because an early application of tensors was the study of materials stretching under tension.

  10. Tensors: raising and lowering indices - Physics Forums

    Sep 7, 2008 · From Carroll's textbook: 1. The problem statement Imagine we have a tensor X^ {\mu \nu} with components X^ {\mu \nu} = \begin {pmatrix} 2 & 0 & 1 & -1\\ -1 &...