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shuhalo

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 10 years, 3 months
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  • Last seen Feb 15 at 17:06

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79 Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic Feb 11 '11
30 When is the image of a linear operator closed? Mar 9 '11
26 A smooth function's domain of being non-analytic Dec 4 '10
21 Is every Banach space densely embedded in a Hilbert space? Nov 17 '15
20 Distinction between 'adjoint' and 'formal adjoint' Dec 3 '10
14 Realification and Complexification of vector spaces Feb 24 '11
14 Can you equip every vector space with a Hilbert space structure? Jan 10 '15
13 Covariant derivative of vector field along itself: $\nabla_X X$ Dec 14 '14
12 Is the $0\times 0$ matrix (zero-times-zero matrix) a well-defined concept? Sep 3 '16
9 Are “locally continuous” functions continuous? Dec 26 '19
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