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Darren Ong's user avatar
Darren Ong's user avatar
Darren Ong
  • Member for 12 years, 10 months
  • Last seen more than a week ago
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I am a Professor of Mathematics working at Xiamen University Malaysia. I am on the editorial board of the Bulletin of the Malaysian Mathematical Sciences Society. I am interested primarily in the spectral theory of Jacobi, Schrödinger and CMV operators.

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Top posts
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question
9
Can we characterize a periodic function by the compactness of the set of its translates?
Oct 22, 2019
question
7
Is the density of 1's in the Fibonacci word uniform?
Feb 20, 2019
question
6
Gap-opening perturbations of the periodic Schrödinger operator
Jul 19, 2016
question
4
Moments of the position operator and wavepacket spreading
Apr 26, 2014
question
4
Jacobian has small eigenvalues everywhere in an open set. Does this imply globally attracting fixed point in that set?
Jul 3, 2014
question
4
Is there an easy way to tell if all eigenvalues of a unitary or self-adjoint matrix only have eigenvalues of multiplicity two?
Aug 21, 2014
question
4
Expected distance from the origin for a recurrent 1D random walk in a random environment
Feb 11, 2019
question
4
Unbalanced colourings of Penrose tiles
May 27, 2019
question
4
Draw an arbitrary line on a Penrose tiling. Determine a sequence of tiles can it intersect
May 26, 2023
question
3
Characterizing curves that bound strictly convex regions
Jan 25, 2012
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112
"Dressing down" to impress in academic settings
102
Is there a rationale for working in academia in developing countries?
38
What to do when a result is essentially proven but not stated in an existing publication?
35
How to acknowledge contributions of anonymous referee in new paper?
27
What is the advantage of the two-column journal format?