Hernando Burgos-Soto

Last updated

Hernando Burgos-Soto
Born
Colombia
NationalityColombia, Canada
Alma mater National University of Colombia, University of Toronto
Scientific career
FieldsMathematics
Institutions George Brown College
Doctoral advisor Dror Bar-Natan

Hernando Burgos Soto is a Canadian (Colombian born) writer and mathematician, professor of mathematics at George Brown College. [1] He is the author of several math papers in which he introduced some mathematics concepts and extended to tangles some celebrated results of knot theory about the Khovanov homology and the Jones polynomial. [2] [3] During his career as a mathematician, his interests have included Mathematical Statistics, Knot Theory, Algebraic Topology and more recently Mathematical Finance. He is comfortable writing in English and Spanish. When writing in Spanish, he works in the area of prose fiction writing short stories. Some of his short stories were published at the website Cuentos y Cuentos. [4]

Contents

Education

Professor Burgos Soto holds a BSc.Ed in mathematics at the University of Atlántico and a MSc in Mathematics from the University of Valle. He earned a PhD in mathematics from National University of Colombia in 2009, and completed his dissertation at University of Toronto under the guidance of professor Dror Bar-Natan. [5]

Research

His works include regression diagnostic analysis for General Linear Models, [6] extension to tangles of Morwen Thistlethwaite's result on the alternation of the Jones polynomial for alternating links, [7] and a Lee's result on Khovanov homology for links, that states that the Khovanov homology for alternating links is supported in two lines. During his works Professor Burgos has introduced some Mathematical concepts such as: Gravity Information in a tangle diagram, Alternating planar algebras, and Rotation Number of Smoothings. [8]

Selected Publication

Related Research Articles

<span class="mw-page-title-main">Knot theory</span> Study of mathematical knots

In topology, knot theory is the study of mathematical knots. While inspired by knots which appear in daily life, such as those in shoelaces and rope, a mathematical knot differs in that the ends are joined so it cannot be undone, the simplest knot being a ring. In mathematical language, a knot is an embedding of a circle in 3-dimensional Euclidean space, . Two mathematical knots are equivalent if one can be transformed into the other via a deformation of upon itself ; these transformations correspond to manipulations of a knotted string that do not involve cutting it or passing it through itself.

<span class="mw-page-title-main">Knot invariant</span> Function of a knot that takes the same value for equivalent knots

In the mathematical field of knot theory, a knot invariant is a quantity (in a broad sense) defined for each knot which is the same for equivalent knots. The equivalence is often given by ambient isotopy but can be given by homeomorphism. Some invariants are indeed numbers (algebraic), but invariants can range from the simple, such as a yes/no answer, to those as complex as a homology theory (for example, "a knot invariant is a rule that assigns to any knot K a quantity φ(K) such that if K and K' are equivalent then φ(K) = φ(K')."). Research on invariants is not only motivated by the basic problem of distinguishing one knot from another but also to understand fundamental properties of knots and their relations to other branches of mathematics. Knot invariants are thus used in knot classification, both in "enumeration" and "duplication removal".

A knot invariant is a quantity defined on the set of all knots, which takes the same value for any two equivalent knots. For example, a knot group is a knot invariant.

Typically a knot invariant is a combinatorial quantity defined on knot diagrams. Thus if two knot diagrams differ with respect to some knot invariant, they must represent different knots. However, as is generally the case with topological invariants, if two knot diagrams share the same values with respect to a [single] knot invariant, then we still cannot conclude that the knots are the same.

Skein relations are a mathematical tool used to study knots. A central question in the mathematical theory of knots is whether two knot diagrams represent the same knot. One way to answer the question is using knot polynomials, which are invariants of the knot. If two diagrams have different polynomials, they represent different knots. However, the converse is not true.

In the mathematical field of knot theory, the Jones polynomial is a knot polynomial discovered by Vaughan Jones in 1984. Specifically, it is an invariant of an oriented knot or link which assigns to each oriented knot or link a Laurent polynomial in the variable with integer coefficients.

<span class="mw-page-title-main">Reidemeister move</span> One of three types of isotopy-preserving local changes to a knot diagram

In the mathematical area of knot theory, a Reidemeister move is any of three local moves on a link diagram. Kurt Reidemeister and, independently, James Waddell Alexander and Garland Baird Briggs, demonstrated that two knot diagrams belonging to the same knot, up to planar isotopy, can be related by a sequence of the three Reidemeister moves.

Algorithmic topology, or computational topology, is a subfield of topology with an overlap with areas of computer science, in particular, computational geometry and computational complexity theory.

In mathematics, planar algebras first appeared in the work of Vaughan Jones on the standard invariant of a II1 subfactor. They also provide an appropriate algebraic framework for many knot invariants (in particular the Jones polynomial), and have been used in describing the properties of Khovanov homology with respect to tangle composition. Any subfactor planar algebra provides a family of unitary representations of Thompson groups. Any finite group (and quantum generalization) can be encoded as a planar algebra.

In mathematics, Khovanov homology is an oriented link invariant that arises as the cohomology of a cochain complex. It may be regarded as a categorification of the Jones polynomial.

The Tait conjectures are three conjectures made by 19th-century mathematician Peter Guthrie Tait in his study of knots. The Tait conjectures involve concepts in knot theory such as alternating knots, chirality, and writhe. All of the Tait conjectures have been solved, the most recent being the Flyping conjecture.

<span class="mw-page-title-main">Unknotting problem</span> Determining whether a knot is the unknot

In mathematics, the unknotting problem is the problem of algorithmically recognizing the unknot, given some representation of a knot, e.g., a knot diagram. There are several types of unknotting algorithms. A major unresolved challenge is to determine if the problem admits a polynomial time algorithm; that is, whether the problem lies in the complexity class P.

In knot theory, a virtual knot is a generalization of knots in 3-dimensional Euclidean space, R3, to knots in thickened surfaces modulo an equivalence relation called stabilization/destabilization. Here is required to be closed and oriented. Virtual knots were first introduced by Kauffman (1999).

<span class="mw-page-title-main">Louis Kauffman</span> American mathematician

Louis Hirsch Kauffman is an American mathematician, mathematical physicist, and professor of mathematics in the Department of Mathematics, Statistics, and Computer Science at the University of Illinois at Chicago. He does research in topology, knot theory, topological quantum field theory, quantum information theory, and diagrammatic and categorical mathematics. He is best known for the introduction and development of the bracket polynomial and the Kauffman polynomial.

<span class="mw-page-title-main">Dror Bar-Natan</span> Israeli mathematician (born 1966)

Dror Bar-Natan is a professor at the University of Toronto Department of Mathematics, Canada. His main research interests include knot theory, finite type invariants, and Khovanov homology.

Mikhail Khovanov is a Russian-American professor of mathematics at Columbia University who works on representation theory, knot theory, and algebraic topology. He is known for introducing Khovanov homology for links, which was one of the first examples of categorification.

In the mathematical theory of knots, a Berge knot or doubly primitive knot is any member of a particular family of knots in the 3-sphere. A Berge knot K is defined by the conditions:

  1. K lies on a genus two Heegaard surface S
  2. in each handlebody bound by S, K meets some meridian disc exactly once.
<span class="mw-page-title-main">History of knot theory</span>

Knots have been used for basic purposes such as recording information, fastening and tying objects together, for thousands of years. The early significant stimulus in knot theory would arrive later with Sir William Thomson and his vortex theory of the atom.

Knots in Washington is an international conference on knot theory and its ramifications held twice a year since 1995. The main organizers are Józef Przytycki, Alexander Shumakovitch, Yongwu Rong and Valentina Harizanov, all of whom are at George Washington University.

In theoretical physics, the six-dimensional (2,0)-superconformal field theory is a quantum field theory whose existence is predicted by arguments in string theory. It is still poorly understood because there is no known description of the theory in terms of an action functional. Despite the inherent difficulty in studying this theory, it is considered to be an interesting object for a variety of reasons, both physical and mathematical.

The concept of alternating planar algebras first appeared in the work of Hernando Burgos-Soto on the Jones polynomial of alternating tangles. Alternating planar algebras provide an appropriate algebraic framework for other knot invariants in cases the elements involved in the computation are alternating. The concept has been used in extending to tangles some properties of Jones polynomial and Khovanov homology of alternating links.

References

  1. , George Brown College. Accessed December 19, 2015
  2. Burgos-Soto, Hernando (2010). "The Jones Polynomial and the Planar algebra of alternating tangles". Journal of Knot Theory and Its Ramifications. 19 (11): 1487. arXiv: 0807.2600 . doi:10.1142/S0218216510008510. S2CID   13993750.
  3. Bar-Natan, Dror; Burgos-Soto, Hernando (February 2014). "The Khovanov homology for alternating tangles". Journal of Knot Theory and Its Ramifications. 23 (2): 1450013. arXiv: 1003.4766 . doi:10.1142/S0218216514500138. S2CID   119237571.
  4. Minas, Adrian. "Hernando Burgos-Soto". Cuentos y Cuentos. Cuentos Y Cuentos. Retrieved 18 November 2015.
  5. Burgos-Soto, Hernando. "Mathematics Genealogy Project". Mathematics Genealogy Project. Retrieved 18 November 2015.
  6. Digital, Biblioteca. "Diagnostic Analysis in Generalized Linear Models" (PDF). REsument de Proyectos y tesis. Universidad Del Valle. Retrieved 18 November 2015.
  7. Burgos-Soto, Hernando (2010). "The Jones Polynomial and the Planar algebra of alternating tangles". Journal of Knot Theory and Its Ramifications. 19 (11): 1487. arXiv: 0807.2600 . doi:10.1142/S0218216510008510. S2CID   13993750.
  8. Burgos-Soto, Hernando (2010). "The Jones Polynomial and the planar algebra of alternating tangles". Journal of Knot Theory and Its Ramifications. 19 (11): 1503. arXiv: 0807.2600 . doi:10.1142/S0218216510008510. S2CID   13993750.