Weierstrass-Erdman Corner Condition
In the calculus of variations, the condition
| f_(y^')(x,y,y^'(x_-))=f_(y^')(x,y,y^'(x_+)) |
must hold at a corner (x,y) of a minimizing arc E_(12).
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Cite this as:
Weisstein, Eric W. "Weierstrass-Erdman Corner Condition." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Weierstrass-ErdmanCornerCondition.html