Results 61 to 70 of about 426,250 (213)

Cycles and sorting index for matchings and restricted permutations [PDF]

Discrete Mathematics & Theoretical Computer Science, 2013
We prove that the Mahonian-Stirling pairs of permutation statistics $(sor, cyc)$ and $(∈v , \mathrm{rlmin})$ are equidistributed on the set of permutations that correspond to arrangements of $n$ non-atacking rooks on a fixed Ferrers board with $n$ rows ...
Svetlana Poznanović
doaj   +1 more source

Seats at the Table, Shifts in the Actions: Board Gender Diversity and Climate Activism

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT As regulatory and stakeholder pressures intensify, firms are increasingly expected to move beyond symbolic sustainability commitments towards corporate climate activism. This concept refers to the active institutionalisation of climate‐focused mechanisms such as external assurance, board oversight and climate‐linked incentives.
Md Tanvir Hamim, Rasim Simsek
wiley   +1 more source

Skew Dyck paths, area, superdiagonal bargraphs

, 2010
Skew Dyck paths are a generalization of ordinary Dyck paths, defined as paths using up steps U=(1,1), down steps D=(1,-1), and left steps L=(-1,-1), starting and ending on the x-axis, never going below it, and so that up and left steps never overlap.
E. Deutsch, MUNARINI, EMANUELE, DEUSTCH E., S. Rinaldi, MUNARINI E., RINALDI S.   +5 more
core   +1 more source

Convergence Clubs in Corporate Sustainability: Identifying Industry and Risk‐Level ESG Convergence Patterns in S&P 500 Firms

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Despite the growing emphasis on corporate sustainability, it remains unclear whether firms will align with common ESG standards. The Phillips–Sul convergence methodology, in combination with dynamic time‐warping clustering, was utilized to analyze the ESG trajectories of 430 S&P 500 firms from 2019 to 2024.
Abdullah Kürşat Merter, Yavuz Selim Balcıoğlu   +1 more
wiley   +1 more source

Avoiding patterns in irreducible permutations [PDF]

Discrete Mathematics & Theoretical Computer Science, 2016
We explore the classical pattern avoidance question in the case of irreducible permutations, i.e., those in which there is no index $i$ such that $\sigma (i+1) - \sigma (i)=1$.
Jean-Luc Baril
doaj   +1 more source

Board Composition and Corporate Waste Generation: A Cross‐Country Analysis of Tenure, Cultural Diversity, and Director Skills

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Corporate waste generation is a material environmental outcome embedded in firms' production technologies, process design, resource use, and managerial execution. Although boards do not directly manage operational waste, they may shape waste‐related outcomes through strategic oversight, environmental investment approval, target‐setting, and ...
Hala Zaidan, Rasmi Meqbel, Muntaser J. Melhem, Khaldoon Albitar   +3 more
wiley   +1 more source

Deepest Nodes in Marked Ordered Trees

Annales Mathematicae Silesianae, 2022
A variation of ordered trees, where each rightmost edge might be marked or not, if it does not lead to an endnode, is investigated. These marked ordered trees were introduced by E. Deutsch et al. to model skew Dyck paths.
Prodinger Helmut
doaj   +1 more source

Catalan Bounds for Symmetric Strength‐Two Orthogonal Arrays

Journal of Combinatorial Designs, EarlyView.
ABSTRACT A Hamming shell construction is a two‐level array obtained by taking every binary vector of a given Hamming weight a prescribed number of times, for each weight in turn. Such arrays are invariant under all permutations of the factors, and they are strength‐two orthogonal arrays exactly when the multiplicities satisfy three linear constraints ...
Ruwan C. Karunanayaka
wiley   +1 more source

Some structures of the catalan numbers I [PDF]

ریاضی و جامعه
The Catalan numbers are ubiquitous in counting problems which is one of the primary reasons for its popularity. From various sources like books and Wikipedia we see that in combinatorial mathematics.
Daniel Yaqubi, Madjid Mirzavaziri
doaj   +1 more source

Proofs of two conjectures of Kenyon and Wilson on Dyck tilings [PDF]

Discrete Mathematics & Theoretical Computer Science, 2012
Recently, Kenyon and Wilson introduced a certain matrix M in order to compute pairing probabilities of what they call the double-dimer model. They showed that the absolute value of each entry of the inverse matrix $M^-1$ is equal to the number of certain
Jang Soo Kim
doaj   +1 more source