Question

How to show that a list of sets with the parameters (4,2,1) is A VALID BLOCK DESIGN?

score 36 · Answer 1 · 2020-12-16 18:32:13

36

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How to show that a list of sets with the parameters (4,2,1) is A VALID BLOCK DESIGN?

Published on 16 Dec 2020 - 18:32

score 133 · Answer 2 · 2020-12-17 20:17:59

133

Views

System of distinct representatives and chessboards

Published on 17 Dec 2020 - 20:17

score 48 · Answer 3 · 2020-12-19 12:02:39

48

Views

A round of introductions: A graph problem?

Published on 19 Dec 2020 - 12:02

score 831 · Answer 4 · 2020-12-22 14:32:50

831

Views

How many meetings would it take for 12 people to meet in 4 groups of 3 until they met everyone?

Published on 22 Dec 2020 - 14:32

score 174 · Answer 5 · 2021-01-02 04:18:56

174

Views

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score 50 · Answer 6 · 2021-01-13 19:20:49

50

Views

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score 122 · Answer 7 · 2021-01-18 19:05:50

122

Views

Understanding the Steiner triple system

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score 591 · Answer 8 · 2026-02-23 19:17:11

591

Views

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score 179 · Answer 9 · 2021-01-26 17:27:43

179

Views

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score 926 · Answer 10 · 2021-02-05 20:39:45

926

Views

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score 277 · Answer 11 · 2021-02-11 16:50:29

277

Views

Combinations of X elements taken Y at a time with each combination not sharing more than Z element with another

Published on 11 Feb 2021 - 16:50

score 154 · Answer 12 · 2021-02-15 06:09:00

154

Views

Number of combinations with small intersection

Published on 15 Feb 2021 - 6:09

score 98 · Answer 13 · 2021-02-16 02:38:29

98

Views

Making $100$ ordered lists with the numbers $1 - n$ $5$ times such that no two lists are the same at more than one index.

Published on 16 Feb 2021 - 2:38

score 125 · Answer 14 · 2021-02-16 10:32:35

125

Views

Calculating edge cover for this Hypergraph?

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score 104 · Answer 15 · 2021-02-16 19:14:30

104

Views

Group Testing Problems Where the Number of Defectives is Given By a Probability Distribution

Published on 16 Feb 2021 - 19:14

List Question

How to show that a list of sets with the parameters (4,2,1) is A VALID BLOCK DESIGN?

System of distinct representatives and chessboards

A round of introductions: A graph problem?

How many meetings would it take for 12 people to meet in 4 groups of 3 until they met everyone?

How many blocks can be made of a subset of S in a Steiner system

Enumerating separating subcollections of a set

Understanding the Steiner triple system

"Math Lotto" Tickets - finding the minimum winning set

Everyone is passed everything exactly once, but never from the same person

Tournament bracket for a 4-player game and 13 players in total

Combinations of X elements taken Y at a time with each combination not sharing more than Z element with another

Number of combinations with small intersection

Making $100$ ordered lists with the numbers $1 - n$ $5$ times such that no two lists are the same at more than one index.

Calculating edge cover for this Hypergraph?

Group Testing Problems Where the Number of Defectives is Given By a Probability Distribution

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