Results 31 to 40 of about 177 (94)

The Mathematical History Behind the Granger–Johansen Representation Theorem

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 587-602, August 2026.
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

Fine multidegrees, universal Gröbner bases, and matrix Schubert varieties

Journal of the London Mathematical Society, Volume 114, Issue 2, August 2026.
Abstract We give a criterion for a collection of polynomials to be a universal Gröbner basis for an ideal in terms of the multidegree of the closure of the corresponding affine variety in (P1)N$(\mathbb {P}^1)^N$. This criterion can be used to give simple proofs of several existing results on universal Gröbner bases.
Daoji Huang, Matt Larson
wiley   +1 more source

Robustness of Topological Phases on Aperiodic Lattices. [PDF]

Math Phys Anal Geom
Li Y.
europepmc   +1 more source

Modular Structure of the Weyl Algebra. [PDF]

Commun Math Phys, 2022
Longo R.
europepmc   +1 more source

Intrinsic Quantization of Linear Hamiltonian Systems. [PDF]

Entropy (Basel)
Accardi L, Pandiscia C.
europepmc   +1 more source

The Ontology of Haag's Local Quantum Physics. [PDF]

Entropy (Basel), 2023
Jaeger G.
europepmc   +1 more source

Quantum-like representation of neuronal networks' activity: modeling "mental entanglement". [PDF]

Front Hum Neurosci
Khrennikov A, Yamada M.
europepmc   +1 more source

Scaling Limits of Lattice Quantum Fields by Wavelets. [PDF]

Commun Math Phys, 2021
Morinelli V, Morsella G, Stottmeister A, Tanimoto Y.   +3 more
europepmc   +1 more source

Matrix Quantum Mechanics and Entanglement Entropy: A Review. [PDF]

Entropy (Basel)
Fliss JR, Frenkel A.
europepmc   +1 more source

Simultaneous Measurements of Noncommuting Observables: Positive Transformations and Instrumental Lie Groups. [PDF]

Entropy (Basel), 2023
Jackson CS, Caves CM.
europepmc   +1 more source