Zobrazeno 1 - 10
of 135
pro vyhledávání: '"P Papastathopoulos"'
We present an innovative cluster-based method employing linear combinations of diverse cluster mean-field (cMF) states, and apply it to describe the ground state of strongly-correlated spin systems. In cluster mean-field theory, the ground state wave
Externí odkaz:
http://arxiv.org/abs/2402.06760
We use a functional analogue of the quantile function for probability measures admitting a continuous Lebesgue density on $\mathbb{R}^d$ to characterise the class of non-trivial limit distributions of radially recentered and rescaled multivariate exc
Externí odkaz:
http://arxiv.org/abs/2310.06130
We introduce $S_z$ spin-projection based on cluster mean-field theory and apply it to the ground state of strongly-correlated spin systems. In cluster mean-field, the ground state wavefunction is written as a factorized tensor product of optimized cl
Externí odkaz:
http://arxiv.org/abs/2304.12822
Autor:
Papastathopoulos, Ioannis, Auld, Graeme, Lindgren, Finn, Gerlei, Klára Zsófia, Nolan, Matthew F.
Questions about information encoded by the brain demand statistical frameworks for inferring relationships between neural firing and features of the world. The landmark discovery of grid cells demonstrates that neurons can represent spatial informati
Externí odkaz:
http://arxiv.org/abs/2303.17217
Accurate modelling of the joint extremal dependence structure within a stationary time series is a challenging problem that is important in many applications.\ Several previous approaches to this problem are only applicable to certain types of extrem
Externí odkaz:
http://arxiv.org/abs/2303.04447
We develop an asymptotic theory for extremes in decomposable graphical models by presenting results applicable to a range of extremal dependence types. Specifically, we investigate the weak limit of the distribution of suitably normalised random vect
Externí odkaz:
http://arxiv.org/abs/2302.05182
Publikováno v:
Journal of Innovation & Knowledge, Vol 9, Iss 3, Pp 100528- (2024)
Although environmental turbulence poses significant challenges for small and medium-sized enterprises (SMEs), it also offers opportunities for them to thrive and compete. Scholars generally acknowledge the effectiveness of dynamic capabilities (DCs)
Externí odkaz:
https://doaj.org/article/49c1e95083f2427fb4a149199d9fe942
In this study we consider the problem of detecting and quantifying changes in the distribution of the annual maximum daily maximum temperature (TXx) in a large gridded data set of European daily temperature during the years 1950-2018. Several statist
Externí odkaz:
http://arxiv.org/abs/2112.15117
Autor:
Papastathopoulos-Katsaros, Athanasios, Jiménez-Hoyos, Carlos A., Henderson, Thomas M., Scuseria, Gustavo E.
We introduce perturbation and coupled-cluster theories based on a cluster mean-field reference for describing the ground state of strongly-correlated spin systems. In cluster mean-field, the ground state wavefunction is written as a simple tensor pro
Externí odkaz:
http://arxiv.org/abs/2102.10043
Publikováno v:
Ψυχολογία: το Περιοδικό της Ελληνικής Ψυχολογικής Εταιρείας, Vol 29, Iss 1 (2024)
Σύμφωνα με τη βιβλιογραφία οι επιπτώσεις της ψυχικής νόσου των γονέων στα παιδιά και τις οικογένειες είναι ισχυρές και μακρόχρονες. Σκο
Externí odkaz:
https://doaj.org/article/19b2c892548f407ead846eb0662c250c