Can Shifting Vectors Affect Their Exponential Distance Sum Equality?

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Discussion Overview

The discussion centers around the properties of n-dimensional vectors and their relationship to an exponential distance sum equality. Participants explore whether shifting these vectors by a non-zero vector affects the validity of the equality, particularly in the context of the L2 norm.

Discussion Character

  • Exploratory
  • Mathematical reasoning

Main Points Raised

  • One participant proposes a scenario involving vectors ##\vec{a}_{1}, \vec{a}_{2}, \vec{b}_{1}, \vec{b}_{2}## that satisfy the equation ##e^{||\vec{a}_{1}||^2}+e^{||\vec{a}_{2}||^2}=e^{||\vec{b}_{1}||^2}+e^{||\vec{b}_{2}||^2}## and questions the implications of shifting these vectors by another vector ##\vec{A}##.
  • Another participant asks for examples that would contradict the proposed equation when vectors are shifted, suggesting starting with a simple one-dimensional case.
  • One participant speculates that in the one-dimensional case, the second equation holds if either ##a_{1}=b_{1}## and ##a_{2}=b_{2}## or vice versa, while also seeking other potential solutions for ##a_{1}## and ##b_{1}## that satisfy the equations.
  • A later reply raises a specific case where ##a_{1}= -b_{1}## and ##a_{2}= -b_{2}##, questioning how this affects the validity of the equations.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the conditions under which the equations hold, with no consensus reached on the implications of shifting the vectors or the existence of counterexamples.

Contextual Notes

The discussion does not resolve the assumptions regarding the nature of the vectors or the specific conditions under which the equations are satisfied, leaving these aspects open for further exploration.

thatboi
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Hi all,
Suppose I had some some n-dimensional vectors ##\vec{a}_{1}, \vec{a}_{2}, \vec{b}_{1},\vec{b}_{2}## that satisfied ##e^{||\vec{a}_{1}||^2}+e^{||\vec{a}_{2}||^2}=e^{||\vec{b}_{1}||^2}+e^{||\vec{b}_{2}||^2}##. Now suppose there was another non-zero n-dimensional vector ##\vec{A}##. Is there anything I can say about the equation ##e^{||\vec{a}_{1}-\vec{A}||^2}+e^{||\vec{a}_{2}-\vec{A}||^2}=e^{||\vec{b}_{1}-\vec{A}||^2}+e^{||\vec{b}_{2}-\vec{A}||^2}##? For example, is the equation satisfied for ##\vec{a}_{i} \neq \vec{b}_{j}## for ##i,j = {1,2}##. Also I mean ##||\cdot||## as in the L2 norm.
 
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Can you find an example that fails your equation? Start with a simple (1-dimensional) case.
 
scottdave said:
Can you find an example that fails your equation? Start with a simple (1-dimensional) case.
I suppose even in the 1-dimensional case, my second equation is satisfied as long as ##a_{1}=b_{1}##, ##a_{2}=b_{2}## or vice versa right. I was just wondering if there was some other solutions ##a_{1},b_{1}## that satisfied the set of equations above.
 
thatboi said:
I suppose even in the 1-dimensional case, my second equation is satisfied as long as ##a_{1}=b_{1}##, ##a_{2}=b_{2}## or vice versa right. I was just wondering if there was some other solutions ##a_{1},b_{1}## that satisfied the set of equations above.
What happens when ##a_{1}= -b_{1}##, ##a_{2}= -b_{2}## for example?
 

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