Mapping a Vector to a Vector Preserving Operations

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Discussion Overview

The discussion revolves around the concept of mapping vectors to vectors while preserving operations such as addition and multiplication. Participants explore the nature of these mappings, particularly in the context of linear mappings, and seek clarification on the implications of such mappings in an abstract sense.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about mapping vectors while preserving addition and multiplication without referencing the standard linear mapping properties.
  • Another participant suggests that the inquiry may relate to isomorphisms that preserve addition and inner products.
  • A different participant expresses confusion regarding the original question, noting that there are various ways to map vectors and questioning the exclusion of fundamental properties of linear mappings.
  • Another participant asks whether two vectors under linear mapping result in a new vector and seeks clarification on how operations are preserved in this context.
  • One participant states that the definition of a linear mapping inherently involves the preservation of addition and scalar multiplication, implying that the original question may be misdirected.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there are differing interpretations of the original question and the nature of vector mappings. Some express confusion while others attempt to clarify the concepts involved.

Contextual Notes

The discussion highlights potential misunderstandings regarding the basic properties of linear mappings and the implications of mapping vectors in abstract contexts. There is a lack of clarity on the specific definitions and assumptions participants are operating under.

RyozKidz
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can i know how to map a vector to a vector by preserving the operation if addition and mutiplication ..pls dun use f(x+y)=f(x)+f(y)..
i wan to know how to use in abstract ...
if i do the mapping wat will happens?
 
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Do you mean an isomorphism where addition and the inner-product are preserved?
 
RyozKidz said:
can i know how to map a vector to a vector by preserving the operation if addition and mutiplication ..pls dun use f(x+y)=f(x)+f(y)..
i wan to know how to use in abstract ...
if i do the mapping wat will happens?
I have no idea what your question is! There are many ways to "map a vector to a vector", some linear, others not. Are you specifically talking about linear mappings? What do you mean by "pls dun use f(x+y)= f(x)+ f(y)"? I can interpret that as "please don't use f(x+y)= f(x)+ f(y)" but what's the point in talking about linear mappings if you don't use their basic properties? And, finally, what in the world do you mean by "what will happen"?
 
i wan to know wat is 2 vector is under the linear mapping?
will it become a new vector?
actually how to preserve the addition or mutiplication operation when it is under
linear mapping??
 
The definition of a linear mapping is a map that preserves addition and scalar multiplication, so it doesn't make much sense to ask how you preserve that under a linear map.

A linear map takes vectors to vectors, but not necessarily in the same vector space

I hope this answers your questions; it's not really clear what you're confused about
 

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