Results 191 to 200 of about 296,009 (261)

Generalization of adding angular momenta and circular potential in quaternionic quantum mechanics. [PDF]

Heliyon
Deepika R, Muthunagai K.
europepmc   +1 more source

The Mathematical History Behind the Granger–Johansen Representation Theorem

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley   +1 more source

Stochastic activity in low-rank recurrent neural networks. [PDF]

PLoS Comput Biol
Mastrogiuseppe F, Carmona J, Machens CK.
europepmc   +1 more source

Linear associative algebras and abelian equations

L. Dickson
semanticscholar   +1 more source

Finitely presented semigroups and associative aigebras

Journal of Algebra, 1978
openaire   +2 more sources

Large‐Dimensional Cointegrated Threshold Factor Models: The Global Term Structure of Interest Rates

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT In this paper we extend the two‐level factor model to account for cointegration between group‐specific factors in large datasets. We propose two nonlinear specifications: (i) a threshold vector error correction model (VECM) that allows for asymmetric adjustment across regimes; and (ii) a band VECM that captures state‐dependent adjustment which
Daniel Abreu, Paulo M. M. Rodrigues
wiley   +1 more source

Equivariant geometric convolutions for dynamical systems on vector and tensor images. [PDF]

Philos Trans A Math Phys Eng Sci
Gregory WG, Hogg DW, Blum-Smith B, Arias MT, Wong KWK, Villar S.   +5 more
europepmc   +1 more source

Completely reducible actions of connected algebraic groups on finite-dimensional associative algebras

Illinois Journal of Mathematics, 1976
openaire   +3 more sources

Beyond Substitution—An Antipositionalist's Guide to Subtraction—

Philosophy and Phenomenological Research, EarlyView.
ABSTRACT Existing accounts of relations do not properly account for variably polyadic relations: they fail to capture the relationship between completions of the same relation by different numbers of relata. This paper develops a fully general account of such relations by adding an operation of subtraction to the antipositionalist theory of relations ...
Jon Erling Litland
wiley   +1 more source

Repelled Point Processes With Application to Numerical Integration

Scandinavian Journal of Statistics, EarlyView.
ABSTRACT We look at Monte Carlo numerical integration from a stochastic geometry point of view. While crude Monte Carlo estimators relate to linear statistics of a homogeneous Poisson point process (PPP), linear statistics of more regularly spread point processes can yield unbiased estimators with faster‐decaying variance, and thus lower integration ...
Diala Hawat, Gabriel Mastrilli, Rémi Bardenet, Raphaël Lachièze‐Rey   +3 more
wiley   +1 more source