✦ LIBER ✦

Proof of a Conjecture of De Caen and Van Dam

✍ Scribed by Gary L. Ebert; Sebastian Egner; Henk D.L. Hollmann; Qing Xiang

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 71 KB
Volume: 23
Category: Article
ISSN: 0195-6698
DOI: 10.1006/eujc.2001.0523

No coin nor oath required. For personal study only.

✦ Synopsis

We present a proof for a conjecture of De Caen and Van Dam (2001, Europ. J. Combinatorics, 22, 297-301) concerning the existence of a four-class association scheme on the set of all unordered pairs of points of the projective line PG(1, q 2 ), where q = 2 m .

📜 SIMILAR VOLUMES

Proof of a conjecture of nirenberg

✍ Robert Osserman 📂 Article 📅 1959 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB 👁 1 views

Proof of a Conjecture of Frankl and Füre

Proof of a Conjecture of Frankl and Füredi

✍ Gurumurthi V. Ramanan 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 375 KB

We give a simple linear algebraic proof of the following conjecture of Frankl and Fu redi [7,9,13]. (Frankl We generalise a method of Palisse and our proof-technique can be viewed as a variant of the technique used by Tverberg to prove a result of Graham and Pollak [10,11,14]. Our proof-technique

Proof of a conjecture of Alan Hartman

✍ Liu, Q. Z.; Yap, H. P. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 265 KB 👁 2 views

A tree T is said to be bad, if it is the vertex-disjoint union of two stars plus an edge joining the center of the first star to an end-vertex of the second star. A tree T is good, if it is not bad. In this article, we prove a conjecture of Alan Hartman that, for any spanning tree T of K 2m , where

On a conjecture of Aris: Proof and remar

On a conjecture of Aris: Proof and remarks

✍ Dan Luss; Neal R. Amundson 📂 Article 📅 1967 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 428 KB 👁 2 views

The proof of a conjecture of Bouabdallah

The proof of a conjecture of Bouabdallah and Sotteau

✍ Min Xu; Xinmin Hou; Jun-Ming Xu 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 87 KB

A Proof of a Partition Conjecture of Bat

A Proof of a Partition Conjecture of Bateman and Erdős

✍ Jason P Bell 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 97 KB

Bateman and Erdo s found necessary and sufficient conditions on a set A for the kth differences of the partitions of n with parts in A, p (k) A (n), to eventually be positive; moreover, they showed that when these conditions occur p (k+1) A (n) tends to zero as n tends to infinity. Bateman and Erdo