Results 91 to 100 of about 846,626 (359)

On the Dinitz conjecture and related conjectures

Discrete Mathematics, 1995
The Dinitz conjecture states the following: let \(n\) be a natural number and \(S_{i, j}\) sets with \(n\) elements each \((i, j= 1,2,\dots, n)\). Then elements \(a_{i, j}\in S_{i, j}\) can be chosen such that \((a_{i, j})\) is a partial Latin square. The paper explores certain aspects of the Dinitz conjecture and its relationship with other conjecture
openaire   +2 more sources

On a Conjecture of Foulkes

Journal of Algebra, 2000
Let \(P(a,b)\) be the set of unordered partitions of the integers \(1, \dots,ab\) into \(a\) parts of cardinality \(b\). Let \({\mathbb{C}}P(a,b)\) be the permutation module obtained from the action of the symmetric group \(S_{ab}\) on \(P(a,b)\); equivalently, it is the permutation representation of \(S_{ab}\) on the cosets of the wreath product \(S_b\
Siemons, Johannes, Dent, Suzie C.
openaire   +4 more sources

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Fine Selmer Groups and Isogeny Invariance

, 2017
We investigate fine Selmer groups for elliptic curves and for Galois representations over a number field. More specifically, we discuss Conjecture A, which states that the fine Selmer group of an elliptic curve over the cyclotomic extension is a finitely
A Chandrakant, C Wuthrich, J Coates, J. Neukirch, Algebraic number theory, Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences], vol. 322, Springer-Verlag, Berlin, JL Parish, Joseph H. Silverman, JS Milne, M Witte, M Witte, P Billot, P Schneider, R. Sujatha, S Jha, Somnath Jha   +13 more
core   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

Population Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source

THE ROLE OF CENTRALIZED AND DECENTRALIZED LOGISTICS IN A SINGLE-INDUSTRY HOLDING

Вестник Кемеровского государственного университета, 2015
The paper discusses the advantages and disadvantages of centralized and decentralized logistics in a single-industry holding with the example of OJSC “Inter-industry distributive grid company of Siberia”.
S. V. Smolyago
doaj  

Constraints on axion inflation from the weak gravity conjecture [PDF]

, 2015
We derive constraints facing models of axion inflation based on decay constant alignment from a string-theoretic and quantum gravitational perspective.
Tom Rudelius
semanticscholar   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

FEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac, Petra Pavelkova, Laura Ondrisova, Marek Mraz   +3 more
wiley   +1 more source

An update on a few permanent conjectures

Special Matrices, 2016
We review and update on a few conjectures concerning matrix permanent that are easily stated, understood, and accessible to general math audience. They are: Soules permanent-on-top conjecture†, Lieb permanent dominance conjecture, Bapat and Sunder ...
Zhang Fuzhen
doaj   +1 more source