Nelson José Merentes Díaz (born 6 May 1954) is a
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in ...
n
mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems.
Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
,
researcher
Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness t ...
, and
politician
A politician is a person active in party politics, or a person holding or seeking an elected office in government. Politicians propose, support, reject and create laws that govern the land and by an extension of its people. Broadly speaking, a ...
.
Academic activity
In 1978 Merentes finished his bachelor's degree of Mathematics at
Central University of Venezuela
The Central University of Venezuela ( Spanish: ''Universidad Central de Venezuela''; UCV) is a public university of Venezuela located in Caracas. It is widely held to be the highest ranking institution in the country, and it also ranks 18th in ...
and continued his post graduate education taking courses on Economy and Finance, as well as in multifunction techniques for the study of economic problems, completing finally a
doctorate
A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' ...
in Mathematics with
summa cum laude
Latin honors are a system of Latin phrases used in some colleges and universities to indicate the level of distinction with which an academic degree has been earned. The system is primarily used in the United States. It is also used in some So ...
honors, at the
Eötvös Loránd University
Eötvös Loránd University ( hu, Eötvös Loránd Tudományegyetem, ELTE) is a Hungarian public research university based in Budapest. Founded in 1635, ELTE is one of the largest and most prestigious public higher education institutions in Hung ...
of
Budapest
Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population ...
(
Hungary
Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...
) (1991).
Merentes developed most of his research and teaching at Central University of Venezuela where he participated as professor, representative and member of various councils and committees.
Public office work
Merentes also worked extensively in public administration. From 2000 to 2001 he was the Economy and Finance subcommittee's chairman of the National Legislative Committee. He also worked for the Ministry of Finance as deputy minister of Regulation and Control (2000-2001). In 2001 he was appointed as
Minister of Finance
A finance minister is an executive or cabinet position in charge of one or more of government finances, economic policy and financial regulation.
A finance minister's portfolio has a large variety of names around the world, such as "treasury", " ...
of Venezuela by President
Hugo Chavez
Hugo or HUGO may refer to:
Arts and entertainment
* ''Hugo'' (film), a 2011 film directed by Martin Scorsese
* Hugo Award, a science fiction and fantasy award named after Hugo Gernsback
* Hugo (franchise), a children's media franchise based on a ...
. He held that position until the following year, when he was designated as Science and Technology Minister. From that position he was called by President Chavez for the presidency of Social Development Bank (BANDES), a position he left to return to the Ministry of Finance in early 2004. During his second term, took place the creation of the FONDEN, Venezuela's National Development Fund. From April 2009 he became a president of the
Central Bank of Venezuela
The Central Bank of Venezuela ( es, Banco Central de Venezuela, BCV) is the central bank of Venezuela. It maintains a fixed exchange rate for the Venezuelan bolívar and since 1996 is the governing agent of the Venezuelan Clearing House System ...
until 2013.
In April 2013 is appointed as
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in ...
's
Minister of Finance
A finance minister is an executive or cabinet position in charge of one or more of government finances, economic policy and financial regulation.
A finance minister's portfolio has a large variety of names around the world, such as "treasury", " ...
by
Nicolás Maduro. In January 2014, he was re-designated as president of the
Central Bank of Venezuela
The Central Bank of Venezuela ( es, Banco Central de Venezuela, BCV) is the central bank of Venezuela. It maintains a fixed exchange rate for the Venezuelan bolívar and since 1996 is the governing agent of the Venezuelan Clearing House System ...
.
Sanctions
In 2017, Canada sanctioned Merentes and other Venezuelan officials under the ''
Justice for Victims of Corrupt Foreign Officials Act'', stating: "These individuals are responsible for, or complicit in, gross violations of internationally recognized human rights, have committed acts of significant corruption, or both."
Published works
As a researcher Merentes has published more than 200
scientific papers
: ''For a broader class of literature, see Academic publishing.''
Scientific literature comprises scholarly publications that report original empirical and theoretical work in the natural and social sciences. Within an academic field, scienti ...
, including some in specialized mathematical study journals.
His field of study was mainly focused on the study of
differential equation
In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, a ...
s and
Lipschitz continuity
In mathematical analysis, Lipschitz continuity, named after German mathematician Rudolf Lipschitz, is a strong form of uniform continuity for functions. Intuitively, a Lipschitz continuous function is limited in how fast it can change: there ...
. some of his notable contributions include:
* ''On the Composition Operator in AC
, b
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline of ...
' (1991),
* ''On the Composition Operator in BV φ
; b' (1991)
* ''On Functions of Bounded (p,k)-Variation'' (1992) (with S. Rivas and J. L. Sánchez)
* ''Characterization of Globally Lipschitzian Composition Operators in the Banach Space BV
2p , b
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline of ...
' (1992) (with J. Matkowski)
* ''Explicit Petree's function of interpolation of the spaces H
p s'' (1993)
* ''On the Composition Operator between RV
p , b
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline of ...
and BV
, b
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline of ...
' (1995) (with S. Rivas)
* ''Uniformly Continuous Set-valued Composition Operators in the Spaces of Functions of Bounded Variation in the Sense of Wiener'' (2010) (with A. Azócar, J. A. Guerrero and J. Matkowski)
* ''Locally Lipschitz Composition Operators in Spaces of Functions of Bounded Variation'' (2010) (with J. Appell y J.L. Sanchez)
* ''Measures of Noncompactness in the Study of Asymptotically Stable and Ultimately Nondecreasing Solutions of Integral Equations'' (2010) (with J. Appell y J. Banaś)
* ''Exact Controllability of Semilinear Stochastic Evolution Equation'' (2011) (with D. Barráez, H. Leiva and M. Narváez)
* ''Integral Representation of Functions of Bounded Second ϕ-Variation in the Sense of Schramm'' (2011) (with J. Giménez and S. Rivas)
* ''Approximate Controllability of Semilinear Reaction Diffusion Equations'' (2012) (with H. Leiva and J. L. Sánchez)
* ''Uniformly Bounded Set-valued Composition Operators in the Spaces of Functions of Bounded Variation in the Sense of Schramm'' (2012) (with T. Ereú, J. L. Sánchez and M. Wróbel)
References
{{DEFAULTSORT:Merentes, Nelson
1954 births
Living people
Venezuelan mathematicians
Nicolás Maduro ministers
Finance ministers of Venezuela
Presidents of the Central Bank of Venezuela
United Socialist Party of Venezuela politicians
Central University of Venezuela alumni
Eötvös Loránd University alumni
Venezuelan Ministers of Science
Venezuelan Ministers of Technology
Hugo Chávez ministers