Results 41 to 50 of about 176,018 (136)
Wilf classification of triples of 4-letter patterns I [PDF]
Discrete Mathematics & Theoretical Computer Science, 2017 This paper is first part of a complete paper in arXiv , see 1605.04969.
David Callan +2 more
doaj +1 more source
Egge triples and unbalanced Wilf-equivalence
Australas. J Comb., 2014 Egge conjectured that permutations avoiding the set of patterns $\{2143,3142,τ\}$, where $τ\in\{246135,254613,263514,524361,546132\}$, are enumerated by the large Schröder numbers. Consequently, $\{2143,3142,τ\}$ with $τ$ as above is Wilf-equivalent to the set of patterns $\{2413,3142\}$. Burstein and Pantone proved the case of $τ=246135$. We prove the
Jonathan Bloom, Alexander Burstein
openaire +4 more sources
Equivalences for pattern avoiding involutions and classification [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 We complete the Wilf classification of signed patterns of length 5 for both signed permutations and signed involutions. New general equivalences of patterns are given which prove Jaggard's conjectures concerning involutions in the symmetric group ...
Mark Dukes +3 more
doaj +1 more source
Some Wilf-equivalences for vincular patterns [PDF]
Journal of Combinatorics, 2015 20 pages. To appear in the Journal of Combinatorics, Special Issue for the Proceedings of Permutation Patterns ...
Baxter, Andrew M., Shattuck, Mark
openaire +2 more sources
Wilf Equivalences for Patterns in Rooted Labeled Forests [PDF]
, 2023 Building off recent work of Garg and Peng, we continue the investigation into classical and consecutive pattern avoidance in rooted forests, resolving some of their conjectures and questions and proving generalizations whenever possible.
Ren, Michael
core +1 more source
Wilf-Equivalence on $k$-ary Words, Compositions, and Parking Functions [PDF]
The Electronic Journal of Combinatorics, 2009 In this paper, we study pattern-avoidance in the set of words over the alphabet $[k]$. We say that a word $w\in[k]^n$ contains a pattern $\tau\in[\ell]^m$, if $w$ contains a subsequence order-isomorphic to $\tau$. This notion generalizes pattern-avoidance in permutations.
Vít Jelínek, Toufik Mansour
openaire +3 more sources
Seeing like a citizen: Experimental evidence on how empowerment affects engagement with the state
American Journal of Political Science, EarlyView.Abstract Building a strong and effective state requires revenue. Yet, in many low‐income countries, citizens do not make formal payments to the state or forego engaging with the state altogether due to vulnerability to opportunistic demands by state agents. We study two randomized interventions in Kinshasa, Democratic Republic of the Congo, designed to
Soeren J. Henn +4 more
wiley +1 more source
Using large language models to analyze political texts through natural language understanding
American Journal of Political Science, EarlyView.Abstract Large language models (LLMs) offer scalable alternatives to human experts when analyzing political texts for meaning, using natural language understanding (NLU). Qualitative NLU methods relying on human experts are severely limited by cost and scalability.
Kenneth Benoit +4 more
wiley +1 more source
, 2023 Full-resolution image library of the two fossil Podocarpaceae species from Argentina- Acmopyle grayae A. Andruchow-Colombo, G. Rossetto-Harris, Tim J. Brodribb, M.A. Gandolfo, P.
Gabriella Harris (6666146) +2 more
core +1 more source
Regulation &Governance, EarlyView.ABSTRACT The 21st century has witnessed a surge in the number of global corporate responsibility (GCR) frameworks issued by international organizations (IOs). Our study investigates whether and to what extent these frameworks shape businesses' Corporate Social Responsibility (CSR) communications.
Adam William Chalmers +1 more
wiley +1 more source