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Ken W. Smith

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5 Questions

Votes Activity Newest Views

7

22

votes

1

answer

2k

views

When is the product $(1+1)(1+4)…(1+n^2)$ a perfect square?

nt.number-theory prime-numbers

Jun 18 '15 at 7:19 Community♦ 1

6

11

votes

1

answer

454

views

What are smallest finite images of triangle groups?

gr.group-theory finite-groups geometric-group-theory

Sep 7 '14 at 15:22 Community♦ 1

10

votes

2

answers

568

views

Which finite nonabelian groups have all their quaternionic representations of degree one?

rt.representation-theory finite-groups quaternions

Jun 8 '14 at 6:39 Community♦ 1

1

7

votes

5

answers

776

views

Reconstructing graphs with vertices of degree $k$ and $k-1$

co.combinatorics graph-theory graph-reconstruction

Sep 25 '16 at 23:11 user98936 1

1

5

votes

1

answer

374

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Graphs which are “distance-regular” with respect to a vertex (but not distance-regular)

co.combinatorics graph-theory algebraic-graph-theory spectral-graph-theory

Jun 7 '14 at 15:31 Ken W. Smith 819

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