𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Proof of a conjecture about unimodal polynomials

✍ Scribed by Gert Almkvist


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
441 KB
Volume
32
Category
Article
ISSN
0022-314X

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Proof of a Chromatic Polynomial Conjectu
✍ F.M. Dong πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 138 KB

Let P(G, \*) denote the chromatic polynomial of a graph G. It is proved in this paper that for every connected graph G of order n and real number \* n, (\*&2) n&1 P(G, \*)&\*(\*&1) n&2 P(G, \*&1) 0. By this result, the following conjecture proposed by Bartels and Welsh is proved: P(G, n)(P(G, n&1))

A Sequence of Unimodal Polynomials
✍ George Boros; Victor H. Moll πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 123 KB
A short proof of a theorem of dirac's ab
✍ D. R. Woodall πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 105 KB πŸ‘ 1 views

## Abstract A Short proof is given of the theorem that every grph that does not have __K__~4~ as a subcontraction is properly vertex 3‐colorable.

A Counterexample for a Conjecture about
✍ Mabrouk Ben Nasr; NoΓ΄men Jarboui πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 64 KB

This paper solves a long-standing open question: it is known that, if R is a Noetherian ring such that R X is catenarian, then so is R X Y , and, hence, R is universally catenarian; yet the non-Noetherian case remains unsolved. We do provide here an answer with a two-dimensional coequidimensional co

A proof of Boesch's conjecture
✍ Guifang Wang πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 596 KB