Results 91 to 100 of about 115,622 (258)
Causal particle detectors and topology
, 2005 We investigate particle detector responses in some topologically non-trivial spacetimes. We extend a recently proposed regularization of the massless scalar field Wightman function in 4-dimensional Minkowski space to arbitrary dimension, to the massive ...
Abramowitz +55 more
core +2 more sources
From noncommutative κ-Minkowski to Minkowski space–time [PDF]
Physics Letters B, 2007 6 ...
Laurent Freidel +2 more
openaire +3 more sources
Optimal Contracts for Delegated Order Execution
Mathematical Finance, EarlyView.ABSTRACT We determine the optimal affine contract for a client who delegates their order execution to a dealer. Existence and uniqueness are established for general linear price impact dynamics of the dealer's trades. Explicit solutions are available for the model of Obizhaeva and Wang, for example, and a simple gradient descent algorithm is applicable
Martin Larsson +2 more
wiley +1 more source
Geometric properties of the Minkowski operator
Қарағанды университетінің хабаршысы. Математика сериясыThis article is about Minkowski difference of sets, which is one of the Minkowski operators. The necessary and sufficient conditions for the existence of the Minkowski difference of given regular polygons in the plane were derived. The method of finding
M.Sh. Mamatov +3 more
doaj +1 more source
Time as a geometric property of space
Frontiers in Physics, 2016 The proper description of time remains a key unsolved problem in science. Newton conceived of time as absolute and universal which it `flows equably without relation to anything external'}.
James Michael Chappell +4 more
doaj +1 more source
Efficiency in Pure‐Exchange Economies With Risk‐Averse Monetary Utilities
Mathematical Finance, EarlyView.ABSTRACT We study Pareto efficiency in a pure‐exchange economy where agents' preferences are represented by risk‐averse monetary utilities. These coincide with law‐invariant monetary utilities, and they can be shown to correspond to the class of monotone, (quasi‐)concave, Schur concave, and translation‐invariant utility functionals. This covers a large
Mario Ghossoub, Michael B. Zhu
wiley +1 more source
, 2004 In this paper, we introduce the concept of N-dimensional generalized Minkowski space, i.e. a space endowed with a (in general non-diagonal) metric tensor, whose coefficients do depend on a set of non-metrical coodinates.
Cardone, Fabio +2 more
core +1 more source
The simplicity of physical laws
Noûs, EarlyView.Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
wiley +1 more source
Phenomenal knowledge and phenomenal causality
Noûs, EarlyView.Abstract There has been extensive debate over whether we can have phenomenal knowledge in the case of epiphenomenalism. This article aims to bring that debate to a close. I first develop a refined causal account of knowledge—one that is modest enough to avoid various putative problems, yet sufficiently robust to undermine the epiphenomenalist position.
Lei Zhong
wiley +1 more source
Cubic Helices in Minkowski Space [PDF]
Sitzungsberichte und Anzeiger der mathematisch-naturwissenschaftlichen Klasse, 2010 We discuss space-like and light-like polynomial cubic curves in Minkowski (or pseudo-Euclidean) space R 2;1 with the property that the Minkowski-length of the first derivative vector (or hodograph) is the square of a polynomial. These curves, which are called Minkowski Pythagorean hodograph (MPH) curves, generalize a similar notion from the Euclidean ...
Bert Jüttler, Jiří Kosinka
openaire +2 more sources