Results 41 to 50 of about 143 (87)
Veterinary Dermatology, Volume 27, Issue 5, Page 391-e98, October 2016., 2016 Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo +6 more
wiley +1 more source
A general Ramsey product theorem
, 1979 Call a family 6F of subsets of a set U Ramsey if no partition of U into finitely many parts can split every F E CF. We show that under very general conditions an arbitrary collection of Ramsey families in fact has a much stronger uniform Ramsey property.
R. Graham, J. Spencer
semanticscholar +1 more source
Counting occurrences of 132 in an even permutation
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 25, Page 1329-1341, 2004., 2004 We study the generating function for the number of even (or odd) permutations on n letters containing exactly r ≥ 0 occurrences of a 132 pattern. It is shown that finding this function for a given r amounts to a routine check of all permutations in 𝔖2r.
Toufik Mansour
wiley +1 more source
The derangement problem relative to the Mahonian process
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 24, Page 1497-1508, 2003., 2003 We survey n! plus q‐derangement problems. Solutions to four Mahonian statistics arising in connection with cycle placement rules are presented. A few conjectures are also made.
Jessica Delfert +2 more
wiley +1 more source
International Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 11, Page 701-702, 2002., 2002 We note that a result of Brenner (1962) follows from a theorem of Lerch (1896) which also extends it.
Pavlos Tzermias
wiley +1 more source
Long increasing subsequences and non-algebraicity [PDF]
Discrete Mathematics & Theoretical Computer ScienceWe use a recent result of Alin Bostan to prove that the generating functions of two infinite sequences of permutation classes are not algebraic.
Miklos Bona
doaj +1 more source
A remark on Nelson’s best hypercontractive estimates
, 1976 By using a combinatorial estimate we provide a new proof of Nelson's best hypercontractive estimates from L2 to L4. Let G be the differential operator 1 d +x -d on L ~ ( R , T ' / ' e x 2 dx ) .
B. Simon
semanticscholar +1 more source
On the discrepancy of coloring finite sets
International Journal of Mathematics and Mathematical Sciences, Volume 13, Issue 4, Page 825-827, 1990., 1990 Given a subset S of {1, …, n} and a map X : {1, …, n} → {−1, 1}, (i.e. a coloring of {1, …, n} with two colors, say red and blue) define the discrepancy of S with respect to X to be dX(S)=|∑i∈SX(i)| (the difference between the reds and blues on S).
D. Hajela
wiley +1 more source
A positional statistic for 1324-avoiding permutations [PDF]
Discrete Mathematics & Theoretical Computer ScienceWe consider the class $S_n(1324)$ of permutations of size $n$ that avoid the pattern 1324 and examine the subset $S_n^{a\prec n}(1324)$ of elements for which $a\prec n\prec [a-1]$, $a\ge 1$.
Juan B. Gil +2 more
doaj +1 more source
On fundamental transversal matroids
, 1974 Unified proofs of two theorems on fundamental transversal matroids are presented. A necessary condition for a matroid to be a fundamental transversal matroid with respect to a given basis is given.
R. Brualdi
semanticscholar +1 more source