Consider a set of linear independent vectors { x,,x2; } in R". Let a vector v,=x, and a vector v, be computed as ... follows: p-1 | Xp •V k v, = x,-E Vk, k=1\ V•V, for 2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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**Orthogonal Vector Set Calculation**

**Problem Statement:**

Consider a set of linearly independent vectors \(\{\vec{x}_1, \vec{x}_2, \ldots, \vec{x}_i\}\) in \(\mathbb{R}^n\). Let a vector \(\vec{v}_1 = \vec{x}_1\) and a vector \(\vec{v}_p\) be computed as follows:

**Equation A:**

\[
\vec{v}_p = \vec{x}_p - \sum_{k=1}^{p-1} \left( \frac{\vec{x}_p \cdot \vec{v}_k}{\vec{v}_k \cdot \vec{v}_k} \right) \vec{v}_k, \quad \text{for} \quad 2 \leq p \leq i.
\]

**Objective:**

Show that \(\vec{v}_Q \cdot \vec{v}_T = 0\) for any \(1 \leq Q, T \leq i\) and \(Q \neq T\).

**Explanation:**

This problem involves creating an orthogonal set of vectors from a linearly independent set using the Gram-Schmidt process. The goal is to demonstrate the orthogonality of the vectors \(\vec{v}_Q\) and \(\vec{v}_T\), ensuring they are perpendicular when \(Q \neq T\) within the specified range.
Transcribed Image Text:**Orthogonal Vector Set Calculation** **Problem Statement:** Consider a set of linearly independent vectors \(\{\vec{x}_1, \vec{x}_2, \ldots, \vec{x}_i\}\) in \(\mathbb{R}^n\). Let a vector \(\vec{v}_1 = \vec{x}_1\) and a vector \(\vec{v}_p\) be computed as follows: **Equation A:** \[ \vec{v}_p = \vec{x}_p - \sum_{k=1}^{p-1} \left( \frac{\vec{x}_p \cdot \vec{v}_k}{\vec{v}_k \cdot \vec{v}_k} \right) \vec{v}_k, \quad \text{for} \quad 2 \leq p \leq i. \] **Objective:** Show that \(\vec{v}_Q \cdot \vec{v}_T = 0\) for any \(1 \leq Q, T \leq i\) and \(Q \neq T\). **Explanation:** This problem involves creating an orthogonal set of vectors from a linearly independent set using the Gram-Schmidt process. The goal is to demonstrate the orthogonality of the vectors \(\vec{v}_Q\) and \(\vec{v}_T\), ensuring they are perpendicular when \(Q \neq T\) within the specified range.
Expert Solution
Step 1

(Note: There is typo error in question while defining v_{p}. The summation should run k=1 to  p-1, because by that time v_{p} is not defined)

Given the set of vectors {x1,x2,,xl in n are linearly independent.

Define:

x1=v1vp=xp-k=1p-1xp.vkvk.vkvk

Observe that:

v1.v2=v1.x1-x1.v1v1.v1v1=v1.x1-v1.x1=0

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