Jiahao Chen

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Name	Jiahao Chen
Member for	3 years
Seen	Oct 3 at 2:19
Website	theochem.mit.edu
Location	Cambridge, MA
Age	31

I'm a postdoc in computational chemistry at MIT. I have a background in chemical physics and applied mathematics. I am currently learning random matrix theory in an effort to improve simulation methods for solar energy applications and other physics and chemistry modeling efforts.

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15

Questions

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Why were matrix determinants once such a big deal?

linear-algebra na.numerical-analysis ho.history-overview determinants big-list

sep 25 at 17:46 Jim Dukelow 1●1

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8

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How to quantify noncommutativity?

reference-request pr.probability free-probability noncommutative-algebra oa.operator-algebras

may 16 12 at 19:14 S. Sra 10k●1●16●44

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Combinatorial interpretation of the power of a series

reference-request co.combinatorics power-series

may 14 12 at 5:16 Pietro Majer 19.7k●1●24●69

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Which graphs have incidence matrices of full rank?

co.combinatorics graph-theory linear-algebra

may 25 11 at 10:50 lucas 1

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Why only three classical matrix ensembles in RMT? (Newbie question)

random-matrices elementary

jul 28 11 at 19:05 Adrien Hardy 766●2●11

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Relationship between free probability and deterministic graphs?

random-matrices linear-algebra free-probability graph-theory oa.operator-algebras

oct 23 11 at 15:40 Adrien Hardy 766●2●11

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Is there a name for the matrix equation A X B + B X A + C X C = D?

na.numerical-analysis linear-algebra oc.optimization-control

may 14 at 22:02 Chetan Tonde 1

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Graphs with incidence matrices whose pseudoinverses are proportional to their transposes

graph-theory linear-algebra co.combinatorics

nov 10 09 at 22:11 Darsh Ranjan 3,547●21●35

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Statistics for Haar measure of random matrices?

haar-measure random-matrices pr.probability

oct 8 11 at 5:40 Jiahao Chen 1,259●8●19

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When is a finite matrix a “good” approximate representation of an operator?

fa.functional-analysis linear-algebra mp.mathematical-physics

oct 4 10 at 9:22 MathOverflow♦ 1●2●3

11

Answers

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Where does a math person go to learn quantum mechanics?

Fundamental Examples

Applied linear algebra textbook?

Where does a math person go to learn statistical mechanics? (2)

Mathematical Physics? (Particularly computational) (2)

Does there exist a potential which realizes this strange quantum mechanical system?

solving series of linear systems with diagonal perturbations

Which computer algebra system should I be using to solve large systems of sparse linear equations over a number field?

Eigenvalues of A+B where A is symmetric positive definite and B is diagonal

Expected values of traces of products of random matrices

Justification for the matching condition for the wave function at potential jumps. Why is it both restrictive enough and sufficiently general?

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