Results 11 to 20 of about 6,634,346 (295)
Path Integral Approach to Noncommutative Space-Times [PDF]
We propose a path integral formulation of noncommutative generalizations of spacetime manifold in even dimensions, characterized by a length scale $\lambda_P$.
Mangano, Gianpiero
core +2 more sources
A Phase Space Approach to Gravitational Enropy [PDF]
We examine the definition S = ln Omega as a candidate "gravitational entropy" function. We calculate its behavior for gravitationl and density perturbations in closed, open and flat cosmologies and find that in all cases it increases monotonically. Using
B. Hu +14 more
core +2 more sources
An embedding space approach to Carrollian CFT correlators for flat space holography
Carrollian conformal field theories (carrollian CFTs) are natural field theories on null infinity of an asymptotically flat spacetime or, more generally, geometries with conformal carrollian structure. Using a basis transformation, gravitational S-matrix
Jakob Salzer
doaj +1 more source
Summary: In this paper, we characterize both \(T_1\) and local \(T_1\) limit (resp. gauge) approach spaces as well as show how these concepts are related to each other. Finally, we compare these \(T_1\) and the usual \(T_1\) approach spaces.
Baran, Mehmet, Qasim, Muhammad
openaire +6 more sources
Approach uniformities were introduced in Lowen and Windels (1998) as the canonical generalization of both metric spaces and uniform spaces. This text presents in this new context of quantitative uniform spaces, a reflective completion theory which ...
Robert Lowen, Bart Windels
doaj +1 more source
Functorial approach structures
We show that there exists at least a proper class of functorial approach structures, i.e., right inverses to the forgetful functor T : AP→ Top (where AP denotes the topological construct of approach spaces and contractions as introduced by R.
Guillaume C.L. Brümmer, Mark Sioen
doaj +1 more source
Multi-Robot Space Exploration: An Augmented Arithmetic Approach
Space exploration refers to constructing a map with the aid of sensor data. This exploration is achieved utilizing a group of robots in an obstacle cluttered environment and distributing tasks amongst these robot(s). The robotic configuration is equipped
Faiza Gul +3 more
doaj +1 more source
A conceptual approach for noncontact calorimetry in space [PDF]
A concept is developed and described which allows to measure the heat capacity and the effective thermal conductivity of stable and undercooled liquid metals and alloys in an electromagnetic levitation apparatus.
Fecht, H. J., Johnson, W. L.
core +1 more source
A quasitopos containing CONV and MET as full subcategories
We show that convergence spaces with continuous maps and metric spaces with contractions, can be viewed as entities of the same kind. Both can be characterized by a limit function λ which with each filter ℱ associates a map λℱ from the underlying set ...
E. Lowen, R. Lowen
doaj +1 more source
Nonextensive entropy approach to space plasma fluctuations and turbulence [PDF]
Spatial intermittency in fully developed turbulence is an established feature of astrophysical plasma fluctuations and in particular apparent in the interplanetary medium by in situ observations.
Baumjohann, W. +2 more
core +2 more sources

