Tsuyoshi Ito

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Name	Tsuyoshi Ito
Member for	2 years
Seen	May 6 at 18:45
Website	nec-labs.com/~tsuyoshi
Location	Princeton, NJ
Age	33

I am a research staff member working on quantum computing at the NEC Laboratories America, Inc., Princeton. But my posts on Math Overflow are personal and not related to my employer.

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Finite-dimensional version of the word problem for groups

gr.group-theory combinatorial-group-theor computability-theory

aug 30 10 at 6:08 Agol 23.9k●1●33●84

7

votes

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answer

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The volume of the “unit ball” in $\mathbb{R}^{m\times n}$ with respect to the cut norm

geometry convex-polytopes mg.metric-geometry co.combinatorics

oct 11 11 at 9:08 Guillaume Aubrun 608●2●11

17

Answers

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Function satisfying $f^{-1} =f'$

Ask some matrix eigenvalue inequalities.

Solving the equation $xax=b$ in a C*-algebra.

How fast are a ruler and compass?

Zero-knowledge proof of positivity

Computing Simultaneous Hamming Neighborhood for a Set of Strings

The role of completeness in Hilbert Spaces

Residual finiteness of groups versus residual finiteness of semigroups

To what degree do min-cuts specify the cut function of a graph?

How to combine linear constraints on a matrix and its inverse?

A conjecture on a Subset Power Sum Problem motivated by Computer Science

Locating a submatrix within a matrix

Decidability of matrix algebra (2)

Suggest effective heuristic (not precise) graph colouring algorithm

Finding regions where multi-variate polynomials are positive

a provable upper bound on the summation

Notation for a graph without any edges?

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