Alexander Pruss's user avatar
Alexander Pruss's user avatar
Alexander Pruss's user avatar
Alexander Pruss
  • Member for 11 years, 6 months
  • Last seen more than a week ago
2 votes
0 answers
83 views

Defining a metric on $\mathbb Z^n$ using Green's function for the simple random walk

6 votes
2 answers
301 views

For most directions does the supporting hyperplane meeting a bounded convex set meet it in one point?

1 vote
0 answers
61 views

A weakening of infinite Golomb rulers for group actions

2 votes
1 answer
226 views

Paradoxical decomposition modulo finite sets

1 vote
2 answers
119 views

Existence of a strictly proper scoring rule on a $\sigma$-algebra that is not countably generated

2 votes
1 answer
230 views

Is the support function continuous on its effective domain?

6 votes
1 answer
267 views

If a compact convex set meets the positive orthant does it meet it at a point with a normal in the positive orthant?

6 votes
0 answers
76 views

A sufficient condition for being the boundary of one's convex hull?

1 vote
1 answer
201 views

Intersection of a closed convex cone with the non-negative orthant

0 votes
1 answer
99 views

Is there a $G$-paradoxical $G$-invariant subset of the plane for $G$ a group of rigid motions?

14 votes
1 answer
349 views

Comparing sizes of sets of integers

1 vote
1 answer
68 views

Invariant strictly positive hyperreal probability measures on groups

4 votes
0 answers
137 views

Self homomorphisms of hyperreals fixing the reals

20 votes
0 answers
434 views

Hahn-Banach and the "Axiom of Probabilistic Choice"

8 votes
2 answers
357 views

Extending the product measure on $2^\omega$

3 votes
0 answers
169 views

Random sets and invariant extensions of Lebesgue measure

19 votes
2 answers
1k views

How many subsets of $[0,1)$ are there modulo null sets?

3 votes
0 answers
206 views

Embedding probability spaces in the completion of $[0,1]^K$

9 votes
1 answer
713 views

Finitely additive measures on $\mathbb Z_2^\omega$ with invariance and independence constraints

3 votes
1 answer
1k views

Is an integral against a probability measure in the convex hull of the range?

0 votes
0 answers
140 views

Maximal isometrically invariant finitely additive extension of Lebesgue measure in dimension $\ge 3$?

10 votes
0 answers
270 views

Strength of claims about extensions of partial preorders and orders to linear ones

10 votes
0 answers
749 views

Full conditional probabilities and versions of AC?

6 votes
4 answers
604 views

Strength of some claims about finitely additive measures on infinite sets?

4 votes
1 answer
192 views

Totally right preorderable groups

2 votes
1 answer
261 views

Two kinds of invariance of full conditional probabilities

8 votes
2 answers
363 views

Isometrically-invariant measures and dilation of the Cantor set

3 votes
1 answer
224 views

Extensions of partial orders to linear orders on (nonabelian) groups

3 votes
1 answer
254 views

Does supramenability imply that $a+c=b+2c \Rightarrow a=b+c$ on the type semigroup?

3 votes
1 answer
307 views

A stronger version of supramenability?