Anthony Quas

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Name Anthony Quas
Member for 2 years
Seen 9 hours ago
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Location University of Victoria
Age 45
The pic is the phase portrait of a simple "piecewise isometry". Define a map by sliding the two halves of the plane: the top half to the right; the lower half to the left and then rotate. Around each periodic point of the map there's a "periodic island". These are what are in the image...
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Cyclotomic polynomials evaluated at roots of unity

sep 3 at 20:59 Peter Mueller 3,780●1●9●18

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Point on a line nearest a point in Banach space

jan 23 11 at 15:52 Sergei Ivanov 22.3k●45●94

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How to make a lecture series useful

nov 20 11 at 5:19 KConrad 17k●3●61●117

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Name this periodic tiling

oct 13 11 at 2:03 Kevin O'Bryant 6,442●1●27●54

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Non-integrable ergodic theory

may 14 11 at 6:04 Ori Gurel-Gurevich 4,281●1●8●17

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non-integrable subadditive ergodic theorem

dec 3 11 at 18:11 Anthony Quas 6,260●1●12●28

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resampling over Bowen balls

may 10 12 at 4:47 Anthony Quas 6,260●1●12●28

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American put option pricing by “binomial trees”

apr 4 at 18:49 Anthony Quas 6,260●1●12●28

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102

Answers
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52
Is this seemingly novel irrational constant also transcendental?
28
Old books still used
26
how to find/define eigenvectors as a continuous function of matrix?
19
Elementary applications of linear algebra over finite fields
16
Examples of common false beliefs in mathematics.
15
Convergence of alternating harmonic sums (2)
15
Given a rational number a/b does there exist a finite group G and an automorphism f s.t. f maps exactly a/b elements of G to their own inverses?
13
Question on Sums of Squares
10
Sum of binomial coefficient
10
Is the chromatic number of the real plane invariant under the norm?
10
An $L^0$ Khintchine inequality
9
Is there an explicit example of such a real number with the following property?
9
Hausdorff dimension of non-recurrent walks
9
Pinball on the infinite plane
8
Where is number theory used in the rest of mathematics?
8
Probability that a random distance function is metric
7
What is the probability that a random subset of a finite group is generic?
7
Upper bound on expectation value of the product of two random variables
7
Average orders of multiplicative functions
7
Strange pattern in rounding errors?
7
faces in the discrete cube
7
the largest eigenvalue of the matrix A with A_{ij}=(i \times j) mod p for p is a prime.
7
Mertens' function in time $O(\sqrt x)$
7
Is there a periodic function without minimum period such that all the possible periods are irrationals?
6
Shift invariant measures that are(n’t) convex combinations of ergodic measures
6
Is this Ramsey-type problem an open problem?
6
finding the $n$ closest pairs between $2n$ points
6
Combinatorics of folding digit strings
6
Limits of intrinsically ergodic systems
6
Sequences without long arithmetic progressions
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