21,019 research outputs found
Exploring the nuances in the relationship "culture-strategy" for the business world
The current article explores interesting, significant and recently identified
nuances in the relationship "culture-strategy". The shared views of leading
scholars at the University of National and World Economy in relation with the
essence, direction, structure, role and hierarchy of "culture-strategy"
relation are defined as a starting point of the analysis. The research emphasis
is directed on recent developments in interpreting the observed realizations of
the aforementioned link among the community of international scholars and
consultants, publishing in selected electronic scientific databases. In this
way a contemporary notion of the nature of "culture-strategy" relationship for
the entities from the world of business is outlined
On structural properties of trees with minimal atom-bond connectivity index
The {\em atom-bond connectivity (ABC) index} is a degree-based molecular
descriptor, that found chemical applications. It is well known that among all
connected graphs, the graphs with minimal ABC index are trees. A complete
characterization of trees with minimal index is still an open problem. In
this paper, we present new structural properties of trees with minimal ABC
index. Our main results reveal that trees with minimal ABC index do not contain
so-called {\em -branches}, with , and that they do not have more
than four -branches
A lower bound on the orbit growth of a regular self-map of affine space
We show that if is a regular self-map and has , where
is the affine Weil height, then partitions into a finite set and
finitely many full arithmetic progressions, on each of which the coordinates of
are polynomials in .
In particular, if is a Zariski-dense orbit, then
either and is of the shape , , or else . This inequality is the
exponential improvement of the trivial lower bound obtained from counting the
points of bounded height in
A Second Order Approximation for the Caputo Fractional Derivative
When , the approximation for the Caputo derivative
where
and
has accuracy . We use the expansion
of to determine an approximation for the fractional
integral of order and the second order approximation for the Caputo
derivative where for , and is the Riemann zeta
function. The numerical solutions of the fractional relaxation and subdiffusion
equations are computed
Efficient computation of trees with minimal atom-bond connectivity index
The {\em atom-bond connectivity (ABC) index} is one of the recently most
investigated degree-based molecular structure descriptors, that have
applications in chemistry. For a graph , the ABC index is defined as
, where is the
degree of vertex in and is the set of edges of . Despite many
attempts in the last few years, it is still an open problem to characterize
trees with minimal index. In this paper, we present an efficient approach
of computing trees with minimal ABC index, by considering the degree sequences
of trees and some known properties of the graphs with minimal index. The
obtained results disprove some existing conjectures end suggest new ones to be
set
An example of rapid evolution of complex limit cycles
In the current article we study complex cycles of higher multiplicity in a
specific polynomial family of holomorphic foliations in the complex plane. The
family in question is a perturbation of an exact polynomial one-form giving
rise to a foliation by Riemann surfaces. In this setting, a complex cycle is
defined as a nontrivial element of the fundamental group of a leaf from the
foliation. In addition to that, we introduce the notion of a multi-fold cycle
and show that in our example there exists a limit cycle of any multiplicity.
Furthermore, such a cycle gives rise to a one-parameter family of cycles
continuously depending on the perturbation parameter. As the parameter
decreases in absolute value, the cycles from the continuous family escape from
a very large subdomain of the complex plane.Comment: 27 pages, submitted to "Discrete and Continuous Dynamical Systems" -
Series
Critical review of models, containing cultural levels beyond the organizational one
The current article traces back the scientific interest to cultural levels
across the organization at the University of National and World Economy, and
especially in the series of Economic Alternatives - an official scientific
magazine, issued by this Institution. Further, a wider and critical review of
international achievements in this field is performed, revealing diverse
analysis perspectives with respect to cultural levels. Also, a useful model of
exploring and teaching the cultural levels beyond the organization is proposed.
Keywords: globalization, national culture, organization culture, cultural
levels, cultural economics. JEL: M14, Z10
On structural properties of trees with minimal atom-bond connectivity index IV: Solving a conjecture about the pendent paths of length three
The atom-bond connectivity (ABC) index is one of the most investigated
degree-based molecular structure descriptors with a variety of chemical
applications. It is known that among all connected graphs, the trees minimize
the ABC index. However, a full characterization of trees with a minimal ABC
index is still an open problem. By now, one of the proved properties is that a
tree with a minimal ABC index may have, at most, one pendent path of length
, with the conjecture that it cannot be a case if the order of a tree is
larger than . Here, we provide an affirmative answer of a strengthened
version of that conjecture, showing that a tree with minimal ABC index cannot
contain a pendent path of length if its order is larger than
Geert Hofstede et al's set of national cultural dimensions - popularity and criticisms
This article outlines different stages in development of the national culture
model, created by Geert Hofstede and his affiliates. This paper reveals and
synthesizes the contemporary review of the application spheres of this
framework. Numerous applications of the dimensions set are used as a source of
identifying significant critiques, concerning different aspects in model's
operation. These critiques are classified and their underlying reasons are also
outlined by means of a fishbone diagram.Comment: available at: http://www.unwe.bg/uploads/Alternatives/3_Dimitrov.pd
Talent management - an etymological study
The current article unveils and analyzes important shades of meaning for the
widely discussed term talent management. It not only grounds the outlined
perspectives in incremental formulation and elaboration of this construct, but
also is oriented to exploring the underlying reasons for the social actors,
proposing new nuances. Thus, a mind map and a fish-bone diagram are constructed
to depict effectively and efficiently the current state of development for
talent management and make easier the realizations of future research
endeavours in this field
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