Results 61 to 70 of about 421 (111)
Transport of patterns by Burge transpose
We take the first steps in developing a theory of transport of patterns from Fishburn permutations to (modified) ascent sequences. Given a set of pattern avoiding Fishburn permutations, we provide an explicit construction for the basis of the ...
Cerbai, Giulio, Claesson, Anders
core
The stepwise rise of angiosperm‐dominated terrestrial ecosystems
ABSTRACT Angiosperms are the most diverse and abundant plant taxon today and dominate the majority of Earth's terrestrial ecosystems. They underwent rapid divergence and biogeographic expansion from the early to the middle Cretaceous. Yet, transformative ecosystem change brought about by the increased ecological dominance of angiosperms unfolded ...
Wenna Ding +5 more
wiley +1 more source
Building the walls of international trade after war: Can dispute resolution mechanisms (DRMs) help?
Abstract This paper explores how international trade recovers after war, emphasizing the role of dispute resolution mechanisms (DRMs). Wars typically prolong negative trade impacts due to heightened tensions, but DRMs—such as General Agreement on Tariffs and Trade/World Trade Organization and diplomatic exchanges—can reduce these tensions, lower policy
Felix Fosu
wiley +1 more source
Fertility, Strong Fertility, and Postorder Wilf Equivalence
We introduce "fertility Wilf equivalence," "strong fertility Wilf equivalence," and "postorder Wilf equivalence," three variants of Wilf equivalence for permutation classes that formalize some phenomena that have appeared in the study of West's stack-sorting map. We introduce "sliding operators" and show that they induce useful bijections among sets of
openaire +3 more sources
ABSTRACT Savannas and rainforests co‐occur as mosaics across large areas of the tropics. These mosaics are dynamic, with savanna and rainforest switching in relatively short time scales, largely through the effects of fire. Most research to date addresses such biome switching through the lens of vegetation, with little attention given to faunal ...
François Brassard +4 more
wiley +1 more source
This research involved the sequencing and analysis of chloroplast genomes from nine species across four genera of the Solanaceae family, specifically two species of Archiphysalis, five species of Physaliastrum, and the taxa Tuberowithania pengiana and Tubocapsicum anomalum.
Jiaju Xu +5 more
wiley +1 more source
New Wilf-equivalence results for vincular patterns
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Lead or Follow? Participation Decisions in Collective Development Initiatives
ABSTRACT When and how do donors cooperate? While a growing literature emphasizes the importance of donor coordination for aid effectiveness, little is known about when and why donors join forces to advance common causes. We leverage the proliferation of special‐purpose trust funds at multilateral organizations to cast light on this issue. We argue that
Bernhard Reinsberg, Martin C. Steinwand
wiley +1 more source
Enumeration and Wilf-classification of permutations avoiding five patterns of length 4 [PDF]
Toufik Mansour
doaj +1 more source
Consecutive pattern containment and c-Wilf equivalence
We offer elementary proofs for several results in consecutive pattern containment that were previously demonstrated using ideas from cluster method and analytical combinatorics. Furthermore, we establish new general bounds on the growth rates of consecutive pattern avoidance in permutations.
openaire +2 more sources

