Results 51 to 60 of about 475,253 (253)
The Anatomical Record, EarlyView.Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza +5 more
wiley +1 more source
Branching processes, the max-plus algebra and network calculus [PDF]
, 2012 Branching processes can describe the dynamics of various queueing systems, peer-to-peer systems, delay tolerant networks, etc. In this paper we study the basic stochastic recursion of multitype branching processes, but in two non-standard contexts. First,
D.G. Kendall +18 more
core +2 more sources
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Precise regulation of preoxidation time and carbonization temperature in biomass napkin‐derived hard carbon generates abundant closed pores and ultramicropores, significantly enhancing the capacity in the low‐potential plateau region (the high plateau capacity of 266 mAh g−1) and thereby achieving highly reversible sodium‐ion storage (395 mAh g−1 at 30
Haoran Wang +4 more
wiley +1 more source
Continuity properties and infinite divisibility of stationary distributions of some generalized Ornstein–Uhlenbeck processes [PDF]
, 2008 Properties of the law μ of the integral ∫ ∞ 0 c -N t- dY t are studied, where c > 1 and {(N t , Y t ), t ≥ 0) is a bivariate Levy process such that {N t } and {Y t } are Poisson processes with parameters a and b, respectively.
A. Lindner, Ken-iti Sato
semanticscholar +1 more source
Recursive and Cyclic Constructions for Double‐Change Covering Designs
Journal of Combinatorial Designs, EarlyView.ABSTRACT A double‐change covering design (DCCD) is a v $v$‐set V $V$ and an ordered list L ${\mathscr{L}}$ of b $b$ blocks of size k $k$ where every pair from V $V$ must occur in at least one block and each pair of consecutive blocks differs by exactly two elements. It is minimal if it has the fewest blocks possible and circular when the first and last
Amanda Lynn Chafee, Brett Stevens
wiley +1 more source
Solvability of invariant systems of differential equations on H2$\mathbb {H}^2$ and beyond
Mathematische Nachrichten, EarlyView.Abstract We show how the Fourier transform for distributional sections of vector bundles over symmetric spaces of non‐compact type G/K$G/K$ can be used for questions of solvability of systems of invariant differential equations in analogy to Hörmander's proof of the Ehrenpreis–Malgrange theorem.
Martin Olbrich, Guendalina Palmirotta
wiley +1 more source
On the Stationary Measure for Markov Branching Processes
MathematicsA previous study determined criteria ensuring that a probability distribution supported in positive integers is the limiting conditional law of a subcritical Markov branching process.
Anthony G. Pakes
doaj +1 more source
Elliptic divisibility sequences and undecidable problems about rational points
, 2006 Julia Robinson has given a first-order definition of the rational integers Z in the rational numbers Q by a formula (\forall \exists \forall \exists)(F=0) where the \forall-quantifiers run over a total of 8 variables, and where F is a polynomial.
Cornelissen, Gunther, Zahidi, Karim
core +2 more sources
Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality
Mathematische Nachrichten, EarlyView.Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley +1 more source
On multivariate quasi-infinitely divisible distributions [PDF]
, 2021 David Berger +2 more
openalex +1 more source