Vector Extreme Value Theorem
From Vectorcalcumb
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=Vector Extreme Value Theorem= | =Vector Extreme Value Theorem= | ||
- | <m>F: \\bbR^n \\right \\bbR^ | + | <m>F: \\bbR^n \\right \\bbR^m</m> |
- | <m>F</m> is continuous, <m>A \\subset \\bbR^ | + | <m>F</m> is continuous, <m>A \\subset \\bbR^n</m> |
<m>\\right</m> F is bounded and obtains miminum and maximum values | <m>\\right</m> F is bounded and obtains miminum and maximum values | ||
i.e. <m> F(A)</m> is compact | i.e. <m> F(A)</m> is compact | ||
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And then I have these scribblings: | And then I have these scribblings: | ||
- | <m> F(A) \\subset</m> | + | |
+ | <m> F(A)\\subset \\bigcup{i \\in I}{}{u_i} </m> | ||
+ | |||
+ | <m> A \\subset \\bigcup{i \\in I}{}{F^{-1}u_i} </m> | ||
+ | |||
+ | <m> A \\subset \\bigcup{k=1}{n}{F^{-1}u_i_k} \\doubleright F(A) \\subset \\bigcup{k=1}{n}{u_i_k}</m> |
Revision as of 15:27, 10 February 2006
Vector Extreme Value Theorem
<m>F: \\bbR^n \\right \\bbR^m</m> <m>F</m> is continuous, <m>A \\subset \\bbR^n</m> <m>\\right</m> F is bounded and obtains miminum and maximum values i.e. <m> F(A)</m> is compact
And apparently, there's no analogue to the Intermediate Value Theorem in Vector Calculus.
And then I have these scribblings:
<m> F(A)\\subset \\bigcup{i \\in I}{}{u_i} </m>
<m> A \\subset \\bigcup{i \\in I}{}{F^{-1}u_i} </m>
<m> A \\subset \\bigcup{k=1}{n}{F^{-1}u_i_k} \\doubleright F(A) \\subset \\bigcup{k=1}{n}{u_i_k}</m>