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Results tagged with calculus-of-variations
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user 151394
Questions on the calculus of variations, which deals with the optimization of functionals mostly defined on infinite dimensional spaces.
9
votes
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answer
511
views
Do these surfaces intersect?
For any real numbers $a_{1},a_{2},\cdots a_{6}$ and $b_{1},b_{2},\cdots b_{6}$
with $\sum_{i=1}^{6}a_{i}^{2}=1$ and $\sum_{i=1}^{6}b_{i}^{2}=1$,
does the equation $$ x_{1}^{2}x_{2}^{2}x_{3}^{2}x_{4}^{ …
- 91