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Zhang Yuhan's user avatar
Zhang Yuhan's user avatar
Zhang Yuhan
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Undergraduate.

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15
Nontrivial signed measure on Lebesgue measurable sets being trivial on Borel sets
Oct 20, 2020
9
Prove J.L. Lions’s Lemma without using Fourier transform
Jan 13
7
Existence of abelian group extension relative to group homomorphism
Nov 14, 2021
5
Homology of singular chain complex modulo subdivision
Dec 7, 2021
5
Naturality of Lie bracket — alternate proof
Mar 28
4
Criteria for extending vector field on sphere to ball
Feb 12
3
Naturality of Lie bracket — alternate proof
Mar 28
2
Fourier series but different waveform
Mar 17
2
Bounded solutions of nonlinear third-order ODEs
Jul 15
2
Convergence to unique stationary distribution for SDEs and Markov processes
yesterday
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6
Existence of Abelian group extension relative to group homomorphism
6
Bounded solutions of nonlinear third-order ODEs
5
What can we get from the square integrability of the derivative?
5
Infinite Intersection of Nested Connected Sets that are Disconnected