Results 61 to 70 of about 9,502,067 (333)

Block patterns in Stirling permutations [PDF]

, 2014
We introduce and study a new notion of patterns in Stirling and $k$-Stirling permutations, which we call block patterns. We prove a general result which allows us to compute generating functions for the occurrences of various block patterns in terms of ...
Remmel, Jeffrey B., Wilson, Andrew Timothy   +1 more
core  

Normal Ordering for Deformed Boson Operators and Operator-valued Deformed Stirling Numbers

, 1992
The normal ordering formulae for powers of the boson number operator $\hat{n}$ are extended to deformed bosons. It is found that for the `M-type' deformed bosons, which satisfy $a a^{\dagger} - q a^{\dagger} a = 1$, the extension involves a set of ...
Abramowitz M, Biedenharn L C, Carlitz L, Carlitz L, Chakrabarti R, Exton H, Garsia A M, Gould H W, J Katriel, Katriel J, Katriel J, Louisell W H, M Kibler, Macfarlane A J, Milne S C, Riordan J, Wachs M, Wilcox R M   +17 more
core   +3 more sources

The r-Stirling numbers

Discrete Mathematics, 1984
AbstractThe r-Stirling numbers of the first and second kind count restricted permutations and respectively restricted partitions, the restriction being that the first r elements must be in distinct cycles and respectively distinct subsets. The combinatorial and algebraic properties of these numbers, which in most cases generalize similar properties of ...
openaire   +2 more sources

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Restricted Stirling permutations

, 2016
In this paper, we study the generating functions for the number of pattern restricted Stirling permutations with a given number of plateaus, descents and ascents.
Callan, David, Ma, Shi-Mei, Mansour, Toufik   +2 more
core   +1 more source

Culture, Connection and Care: The Role of Institutional Justice Capital for Enhancing the Wellbeing of Aboriginal and Torres Strait Islander Children in Out‐Of‐Home Care

Australian Journal of Social Issues, EarlyView.
ABSTRACT Ensuring that Aboriginal and Torres Strait Islander children removed from their families by child protection services remain connected to their kin, Country and culture is a priority to begin to redress the intergenerational trauma and harm caused by colonisation.
Sharynne Hamilton, Larissa Jones, Millie Penny, Charmaine Pell, Sarah Maslen, Carol Michie, Raewyn Mutch, Melissa O’Donnell, Carrington Shepherd, Brad Farrant   +9 more
wiley   +1 more source

On the 2-adic order of Stirling numbers of the second kind and their differences [PDF]

Discrete Mathematics & Theoretical Computer Science, 2009
Let $n$ and $k$ be positive integers, $d(k)$ and $\nu_2(k)$ denote the number of ones in the binary representation of $k$ and the highest power of two dividing $k$, respectively.
Tamás Lengyel
doaj   +1 more source

Overview of free-piston Stirling engine technology for space power application [PDF]

, 1987
An overview is presented of free-piston Stirling engine activities, directed toward space power applications. One of the major elements of the program is the development of advanced power conversion.
Slaby, Jack G.
core   +1 more source

Enumeration of a dual set of Stirling permutations by their alternating runs

, 2015
In this paper, we count a dual set of Stirling permutations by the number of alternating runs. Properties of the generating functions, including recurrence relations, grammatical interpretations and convolution formulas are studied.Comment: 8 ...
Ma, Shi-Mei, Wang, Hai-Na
core   +1 more source

Solid State Self‐Assembly of an Extended Curved‐Arm Nickel(II) Macrocycle with Fullerene C60

Chemistry – An Asian Journal, Volume 20, Issue 6, March 17, 2025.
Three co‐crystalline structures that contain fullerene C60 and (5,14‐dihydro‐6,8,15,17‐tetrabenzyl‐2,3,11,12‐tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecine)nickel(II) show the formation discrete one‐dimensional hollow channels as a results of 1 : 1 interplay and 1 : 2 dimeric interplay with the fullerenes arranged in hexagonal arrays ...
Irene Ling, Marck Norret, Alexandre N. Sobolev, Charles S. Bond, Colin L. Raston   +4 more
wiley   +1 more source