[PDF] Top 20 Fluidos refrigerantes: análisis de la situación actual
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2. On Bertrand Supercurves in Super-Euclidean Space
... In recent years, much conventional differential geometry has been extended to include anticommuting variables; objects in this extended field of study are distin- guishable by the prefix ”super” which derives from ... See full document
46
Special Bertrand Curves in semi-Euclidean space E4^2 and their Characterizations
... quaternionic Bertrand curve in semi-Euclidean space E 2 4 and investigate its ...semi-Euclidean space E 2 4 and then we obtain (N, B 2 ) -type quaternionic ... See full document
226
4.Quaternionic Bertrand curves in Eucledian 4-space
... Characterization of a regular curve is one of the important and interesting prob- lems in the theory of curves in Euclidean space. There are two ways widely used to solve these problems: to figure out the ... See full document
238
Characterizations of Slant Ruled Surfaces in the Euclidean 3-space
... Abstract. In this study, we give the relationships between the conical curvatures of ruled surfaces generated by the unit vectors of the ruling, central normal and central tangent of a ruled surface in the ... See full document
56
Parallel Transport Frame in 4 -dimensional Euclidean Space
... a space curve parametrized by arc-length s and its normal vector field be V (s) which is perpendicular to its tangent vector field T (s) said to be relatively parallel vector field if its derivative is tangential ... See full document
114
Smooth structures on sphere bundles over spheres
... H., On the Normal Bundle of a Homotopy Sphere Embedded in Euclidean Space.[r] ... See full document
23
The existence and characterisation of duality of Markov processes in the Euclidean space
... This thesis examines the existence of dual Markov processes and presents the full characterization of Markov processes in Euclidean space equipped with the natural order (the Pareto order). Considering the ... See full document
132
Polynomial and Rational Convexity of Submanifolds of Euclidean Complex Space
... plurisubharmonic, nor do we know whether h is holomorphic, therefore con- dition (4) of Lemma 4.2.2 may not be satisfied there. We address this issue by taking advantage of the local polynomial convexity of S. We make ... See full document
13
Minimum Spanning Tree based Clustering with Cluster Validity in Data Mining
... A Euclidean minimum spanning tree (EMST) is a spanning tree of a set of n points in a metric space (E n ), where the length of an edge is the Euclidean distance between a pair of points in the point ... See full document
13
On hyperspaces of max-plus and max-min convex sets
... Proof. We proceed by induction. Clearly, mpcc n (X) is homeomorphic to X and therefore is an AR-space. Assume that we have already shown that mpcc n−1 (X) is an AR-space. Without loss of generality, one may ... See full document
67
Geometric Interpretation of the Minkowski Metric
... Geometrically, changing the sign of an element of the metric tensor corresponds to switch- ing the role of basis and coordinate in the affected component. This in principle defines a mapping between the Euclidean ... See full document
7
The origins of Schwinger's Euclidean Green's functions
... I recognized somewhere along the line that the condition that the waves move outward could be expressed by an extension into com- plex space. That is, if you rotated the time axis into a complex space, then ... See full document
51
Corresponding developable ruled surfaces in Euclidean 3-space E3
... of space curves, the corre- sponding relations between the curves are very interesting and important ...known Bertrand curves are characterized as a kind of such corresponding relation between the two ... See full document
10
The topology of asymptotically Euclidean static perfect fluid space-time
... In this chapter we apply our maln theorem to prove that a complete, asymptotically Euclidean, static perfect fluid space-time with connected fluid region and satisfying "timelike converg[r] ... See full document
5
19. Position vectors of general helices in Euclidean 3-space
... In Euclidean space E 3 , it is well known that to each unit speed curve with at least four continuous derivatives, one can associate three mutually orthogonal unit vector fields T, N and B which are ... See full document
21
A note on the boundary behavior for a modified Green function in the upper-half space
... Motivated by (Xu et al. in Bound. Value Probl. 2013:262, 2013) and (Yang and Ren in Proc. Indian Acad. Sci. Math. Sci. 124(2):175-178, 2014), in this paper we aim to construct a modified Green function in the ... See full document
210
Evolution of spherical images and Smarandache curves of a space curve in Euclidean 3-space
... We presented new geometrical models for a curve evolving in space by a method different those in [7]. In addition to, the evolution equation for spherical images, Smarandache curves are obtained. Finally we ... See full document
18
The global optimization of phase-incoherent signals
... In this Chapter we :perform a transformation that maps the unit sphere in c 2 onto the unit sphere in three-dimensional real. Euclidean space[r] ... See full document
5
On the Quaternionic Curves in the Semi-Euclidean Space E_4_2
... a curve in E 4 2 , firstly some characterizations of semi-real quaternionic involute-evolute curves are obtained in E 4 2 . In addition, some results for semi-real quaternionic w − curves which have constant ... See full document
210
Euclidean Model of Space and Time
... physical space is Euclidean, i.e. the axioms of Euclidean geo- metry hold in ...of space in some local scale, that is in some restricted part of the universe sufficiently distant from mass ... See full document
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