Results 81 to 90 of about 176,018 (136)

Stimulus Equivalence: A Comparison of Operant and Associative Procedures [PDF]

open access: yes, 2011
Previous studies comparing the effectiveness of the stimulus-pairing-observation and matching-to-sample procedures in facilitating the formation of equivalence relations have had conflicting findings.
Kinloch, Jennifer May
core  

Extending Results on Wilf-Equivalence of Partial Shuffles

open access: yes
In 2020, Bloom and Sagan defined subsets of the symmetric group $\mathfrak{S}_n$ called partial shuffles, and proved a formula for the Schur expansion of the pattern quasisymmetric function associated with a partial shuffle. In their proof, they establish that any two partial shuffles of the same size are Wilf-equivalent.
Albert, Michael   +2 more
openaire   +2 more sources

New Wilf-equivalence results for dashed patterns

open access: yes, 2012
We give a sufficient condition for the two dashed patterns $τ^{(1)}-τ^{(2)}-\cdots-τ^{(\ell)}$ and $τ^{(\ell)}-τ^{(\ell-1)}-\cdots-τ^{(1)}$ to be (strongly) Wilf-equivalent. This permits to solve in a unified way several problems of Heubach and Mansour on Wilf-equivalences on words and compositions, as well as a conjecture of Baxter and Pudwell on Wilf-
openaire   +2 more sources

Pattern avoidance and dominating compositions [PDF]

open access: yesEnumerative Combinatorics and Applications, 2021
Krishna Menon, Anurag Singh
doaj  

Wilf Dillon interviewed by Cynthia Brown, 5 March 2003

open access: yes, 2003
Interview with Wilf Dillon [WD], born 1920. WD gives a brief description of his childhood. [00:02:12] WD describes a game from his childhood called 'Faggies'; which was played with cards from packs of cigarettes and the cigarettes themselves.
Dillon, Wilf
core  

A Wilf equivalence related to two stack sortable permutations

open access: yes, 2005
A permutation is so-called two stack sortable if it (i) avoids the (scattered) pattern 2-3-4-1, and (ii) contains a 3-2-4-1 pattern only as part of a 3-5-2-4-1 pattern. Here we show that the permutations on [n] satisfying condition (ii) alone are equinumerous with the permutations on [n] that avoid the mixed scattered/consecutive pattern 31-4-2.
openaire   +2 more sources

Wilf-flokkun möskvamynstra

open access: yes, 2011
Heildartexti lokaskýrslu. Prentuð útgáfa og öll fylgi gögn á CD eru varðveitt í bókasafni HRThis B.Sc. project deals with mesh pattern avoidance in permutations. A mesh pattern is a pair P=(p,R), where p is a permutation of length k and R is a subset of [
Steinunn Gróa Sigurðardóttir 1987-   +3 more
core   +2 more sources

Adult Equivalence Scales, Inequality and Poverty [PDF]

open access: yes
This paper examines the sensitivity of inequality and poverty measures to the adult equivalence scale and the unit of analysis. Comparisons are made using parametric equivalence scales, and income units include individuals, equivalent adults and ...
Catherine Sleeman, John Creedy
core  

Adult Equivalence Scales, Inequality and Poverty in New Zealand [PDF]

open access: yes
This paper examines the sensitivity of inequality and poverty measures to the choice of adult equivalence scales and the type of income unit examined.
Catherine Sleeman, John Creedy
core  

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