Results 21 to 30 of about 21,807,131 (299)

Pointwise measurability in nonstandard models.

MATHEMATICA SCANDINAVICA, 1990
Landers, Dieter, Rogge, Lothar
openaire   +3 more sources

Vopěnkova Alternativní teorie množin v matematickém kánonu 20. století

Filosofický časopis, 2022
Vopěnka’s Alternative Set Theory can be viewed both as an evolution and as a revolution: it is based on his previous experience with nonstandard universes, inspired by Skolem’s construction of a nonstandard model of arithmetic, and its inception has been
Haniková, Zuzana
doaj   +1 more source

A Framework to Interpret Nonstandard Log-Linear Models

Austrian Journal of Statistics, 2016
The formulation of log-linear models within the framework of Generalized Linear Models offers new possibilities in modeling categorical data. The resulting models are not restricted to the analysis of contingency tables in terms of ordinary hierarchical ...
Patrick Mair
doaj   +1 more source

Non-standard interactions in radiative neutrino mass models

Journal of High Energy Physics, 2020
Models of radiative Majorana neutrino masses require new scalars and/or fermions to induce lepton-number-violating interactions. We show that these new particles also generate observable neutrino non-standard interactions (NSI) with matter.
K.S. Babu, P.S. Bhupal Dev, Sudip Jana, Anil Thapa   +3 more
doaj   +1 more source

External Bootstrap Tests for Parameter stability [PDF]

, 2002
This article considers tests for parameter stability over time in general econometric models, possibly nonlinear-in-variables. Existing test statistics are commonly not asymptotically pivotal under nonstandard conditions.
Delgado, Miguel A., Fiteni, Inmaculada
core   +2 more sources

Divergent mathematical treatments in utility theory [PDF]

, 2015
In this paper I study how divergent mathematical treatments affect mathematical modelling, with a special focus on utility theory. In particular I examine recent work on the ranking of information states and the discounting of future utilities, in order ...
A Bogaard van den, A Robinson, AM Robert, D Lehmann, Davide Rizza, E Nelson, FP Ramsey, H Skala, J Dubra, JA Crespo, JL Bell, K Basu, K Hrbacek, L Lauwers, L Narens, L-G Svensson, M Davis, M Morgan, M Pivato, ML Weitzman, NCA Costa Da, NCA Costa Da, P Suppes, PA Diamond, PC Fishburn, PJ Cameron, R Goldblatt, R Niederée, TC Koopmans   +28 more
core   +1 more source

Exotic symmetries, duality, and fractons in 2+1-dimensional quantum field theory

SciPost Physics, 2021
We discuss nonstandard continuum quantum field theories in 2+1 dimensions. They exhibit exotic global symmetries, a subtle spectrum of charged excitations, and dualities similar to dualities of systems in 1+1 dimensions.
Nathan Seiberg, Shu-Heng Shao
doaj   +1 more source

Scales of Gaugino Condensation and Supersymmetry Breaking in Nonstandard M-Theory Embeddings [PDF]

, 1999
We investigate the formation of dynamical gaugino condensates and supersymmetry breaking in the compactifications of Horava-Witten theory with perturbative nonstandard embeddings.
Antoniadis, Banks, Benakli, Cerdeno, Dine, Distler, Dixon, Donagi, Donagi, Dudas, Duff, Ellis, Ellis, Ellis, Ghilencea, Ginsparg, Goldberger, Green, Hempfling, Horava, Horava, Horava, Ibanez, Ibanez, Kaplunovsky, Katsuki, Kawamura, Lalak, Lalak, Lalak, Lalak, Li, Li, Lukas, Lukas, Lukas, Lukas, Meissner, Mirabelli, Nilles, Nilles, Nilles, Pokorski, Pokorski, Polchinski, Steven Thomas, Stieberger, Witten, Zygmunt Lalak   +48 more
core   +2 more sources

Chaotic numerical instabilities arising in the transition from differential to difference nonlinear equations

Discrete Dynamics in Nature and Society, 2000
For computational purposes, a numerical algorithm maps a differential equation into an often complex difference equation whose structure and stability depends on the scheme used.
Alicia Serfaty de Markus
doaj   +1 more source

A Note on Intended and Standard Models

Studia Humana, 2020
This note discusses some problems concerning intended, standard, and nonstandard models of mathematical theories. We pay attention to the role of extremal axioms in attempts at a unique characterization of the intended models. We recall also Jan Woleński’
Pogonowski Jerzy
doaj   +1 more source