Home page of Gil Bor
- Mailing Address: CIMAT, A.P. 402, Guanajuato 36000, Gto., Mexico.
- Office: I-307, CIMAT. (52)-473-7327155, ext. 4500.
- E-mail: gil@cimat.mx
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Research |
Lecture notes and talks |
Gallery (images and animations) |
Education |
Vita |
Amusement |
Links
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DEMAT-UG: página nueva/vieja
- SO(3)-invariant Yang-Mills fields which are not self-dual (with R Montegomery)
In: Hamiltonian systems, transformation groups and spectral transform methods (Montreal, PQ, 1989), 191--198, Univ. of Montréal, Montréal QC, 1990. Harnad, J., Marsden,
J.E. (eds.). Montréal: Les publications CRM 1990.
- Yang-Mills Fields which are not Self-Dual
Commun. Math. Phys. 145 (1992), 393-410.
- Symmetric Instantons and the ADHM Construction (with J Segert)
Commun. Math. Phys. 183 (1997), 183-203.
- The cannonical bundle of an hermitian manifold (with L Hernández)
Bol. Soc. Mat. Mexicana (3) 5.1 (1999), 187-198.
- Bochner formulae for orthogonal
G-structures on compact manifolds (with L Hernández)
Diff. Geom. Appl. 15 (2001), 265-286.
- A Bochner formula for almost-quaternionic-Hermitian
structures (with
L Hernández)
Diff. Geom. Appl. 21.1 (2004), 79-92.
- Orthogonal almost complex structures of minimal energy (with
L Hernández, M Salvai)
Geom. Dedicata 127.1 (2007), 75-85.
- G2 and the 'rolling distribution' (with
R Montgomery)
l'Enseign. Math. 55 (2009), 157-196.
- Poincaré y el problema de N-cuerpos (with R Montgomery)
Miscelanea Mat. 58 (2014), 83-102.
- The dancing metric, G2-symmetry and projective rolling
(with L Hernández, P Nurowski)
Trans. Amer. Math. Soc. 370(6) (2018), 4433-4481.
- Tire track geometry and integrable curve evolution (with M Levi, R Perline, S Tabachnikov)
Int. Math. Res. Notices (2018), DOI
- Testing the Domino Theory of Gene Loss in Buchnera aphidicola: The Relevance of Epistatic Interactions (with D Martínez-Cano, A Moya, L Delaye)
Life 8.2 (2018), 17.
- Hill's equation, tire tracks and rolling cones (with M Levi)
Nonlinearity, 33.4 (2020), 1424.
- La geometría de trayectorias de bicicletas (with S Tabachnikov)
Ciencias 135 (2020).
- On the isometric conjecture of Banach (with L Hernández, V Jimenez de Santiago, L Montejano)
Geom. Topol. 25.5 (2021), 2621-2642. DOI
- Bicycle paths, elasticae and sub-Riemannian geometry (with A Ardentov, E Le Donne, R Montgomery, Y Sachkov)
Nonlinearity 34.7 (2021), 4661-4683. DOI
- Left-invariant CR structures on 3-dimensional Lie groups (with H Jacobowitz)
Complex Anal. Synerg. 7, 23 (2021).
- Variations on the Tait-Kneser theorem (with C Jackman and S Tabachnikov)
Math Intelligencer (2021). DOI
- Para-Kähler-Einstein 4-manifolds and non-integrable twistor distributions (with O Makhmali, P Nurowski)
Geometriae Dedicata 216, 9 (2022). DOI
- Revisiting Kepler: new symmetries of an old problem (with C Jackman)
Arnold J. of Math., 12 Sept 2022 (online).
- Self-Backlund curves in centroaffine geometry and Lamé's equation
(with M Bialy and S Tabachnikov)
Comm. AMS 2 (2022), 232-282
- On cusps of caustics by reflection: a billiard variation on Jacobi's Last Geometric Statement (with S Tabachnikov)
Am. Math. Monthly (21 March, 2023, online). DOI.
- Bicycling geodesics are Kirchhoff rods (with C Jackman and S Tabachnikov)
Nonlinearity 36 (2023), 3572-3602. DOI
- Dancing polygons, rolling balls and the Cartan-Engel distribution (with L Hernández)
New York J. Math. 29 (2023) 981-1015.
- Chains of path geometries on surfaces: theory and examples (with T Willse)
Israel J Math, TBD (2024), 1-39. DOI
- Cusps of caustics by reflection in ellipses
(with M Spivakovsky and S Tabachnikov)
J. London Math. Soc. 2 (2024), 110:e70033. DOI
- Two notes I wrote for a Seiberg-Witten seminar we had in Cimat
some time ago: spin1.dvi and
spin3.dvi.
-
Lecture notes on Number Theory I wrote for the "Taller de Ciencia
para Jóvenes"
- A note for highschool workshops about congruences
-
PRIMES AND POWERS - notes for an elementry lecture on number
theory (Hendrik Lenstra, 1993).
- Lecture notes on the
3 body problem
(Richard Montgomery, 8-10 may 1997).
- The geometry of partial
diffrential eqns (a.k.a, Cartan's method of
equivalence, Robert Bryant gave here on).
- Lecture notes + video for
Simon Donaldson visit to CIMAT, 2004
- Videos for talks of Meir Buzaglo visit to CIMAT, 2008
- Notes for a Functional Analysis Course (Mohammad Jabbari, 2021)
- A list of popular science talks I offer
- Video lectures
- Rolling of projective planes with G2-symmetry June 4, 2015
Integrability in Mechanics and Geometry: Theory and Computations, CIRM,
Jun 1 - 5, 2015
- Bicycle mathematics in 3D, June 13, 2016
Integrability and Near-Integrability in Mechanics and Geometry, Oaxaca, 12-17 june, 2016.
- Bicycling Mathematics in 2 and 3 dimensions, Nov 15, 2016
Adolfofest, Merida.
- Geometria de Trayectorias de Bicicleta, Oct 25, 2018
510 Congreso Nacional de la Sociedad Matemática Mexicana, Villahermosa, 2018.
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Dancing pairs, rolling balls and the Cartan distribution, June 21, 2022
Finite Dimensional Integrable Systems 2022, Tel Aviv University, June 20-24, 2022.
- Graduate/Posgrado::
- Mecánica
Clásica, agto-dic 1994.
- topologia I, agto-dic 1995
- topologia I, agto-dic 1996
- topologia II, ene-jun 1997
- Geometria
Riemanniana,
ene-jun 1998
- Variable Compleja I,
ene-jun 1999
- Teoría de
Representaciones, ene-jun 2001
- Grupos de Lie, agsto-dic 2007
- Teoría de
Representaciones, ene-jun 2008
- Mini-curso de introduccion a grupos de Lie, 6-8 dic, 2010
- Teoria de Morse, ago-dic, 2012
- Topolog'ia de variedades diferenciales, ene-jun, 2013
- Teoría de
Representaciones, ago-dic 2013
- Fibrados, conexiones y clases caracteristicas: ene-jun 2014.
- Algebra Moderna: ago-dic 2019.
- Teoría de representaciones de grupos de Lie: ene-jun 2020.
- Differential geometry of plane curves -- Selected topics: March-April 2024.
- Variable compleja: ago-dic 2024.
- Undergraduate/Licenciatura:
- General
- Mecánica
Clásica, escuela de verano, jul 1999
- Algebra Superior,
ago-dic 1999
- Seminario de
Problemas e Investigacion, ene-jul 2000
- Mecánica Clásica,
ago-dic 2000
- Probabilidad y
Estadística, ene-abr 2001
- Mecánica
Clásica, escuela de verano, agosto 2001
- teoria de numeros , agsto-dic 2001
- teoria de conjuntos y logica matematica, agsto-dic 2002
- algebra lineal 1, ene-mayo 2003
- algebra lineal 1, agsto-dic 2003
- algebra lineal 2, ene-mayo
2004
- teoria de numeros, taller de calculo, julio 2005
- calculo 3, agsto-dic 2005
- calculo 4, feb-jun 2006
- teoria de numeros, taller de calculo, julio 2006
- calculo 3, agsto-dic 2006
- calculo 4, feb-jun 2007
- matematicas elementales y elementos de geometria, aug-dic 2008
- algebra lineal 1, ene-mayo 2009
- algebra lineal 2, ago-dic 2009
- matematicas elementales y elementos de geometria, ene-jun 2010
- algebra moderna 2, ago-dic 2010
- algebra lineal 1, ene-mayo 2011
- calculo 3, agsto-dic 2011
- calculo 3, agsto-dic 2014
- Geometría de curvas, oct 2014: Notas
- Matemáticas elementales, ago-dic 2017
- Topologia diferencial, ago-dic 2020
- Elementos de geometría, ago-dic 2021
- Geometría diferencial de curvas en el plano, 5-9 jun 2023
- Pre-university
- Ciencia para Jóvenes
Science workshops for highschool students that I started in the
summer of 1997, then extended also for primary and middle schools
- 1997: 2 math workshops for middle school (secundaria) kids: Guanajuato ,
Dolores Hidalgo .
- 1997: VIBA
a workshop for highschool (preparatoria) kids
from rural areas of the state of Guanjuato
- 2000: Proyecto Post-Primaria de CONAFE
Workshops for teachers
of middle schools ("post-primaria") in rural areas of the state of
Guanajuato.
- 2005: Fisica 3
An ordinary physics class in a local hi-school (la preparatoria Oficial de
la UG)
- 2005: Chiapas
A visit to the state of Chiapas with science lectures and workshops
- 2006: semana de la ciencia en Chiapas
Summer science workshops for hischool students in the the state of Chiapas, similar to the ones in Cimat
- Cursos de matemáticas en el CIMAT para alumnos de bachillerato
A program I started in 2011 for high school students interested in taking their regular math classes in CIMAT. I taught a course of this program in almost all semestres.
- Geometría Analítica (5to sem), ago-dic 2011
- Cálculo en el CIMAT (6o sem), ene-jun 2012
- Cálculo en el CIMAT (5to sem), ago-dic 2012
- Cálculo integral (6to sem), ene-jun 2013
- Álgebra I (1er sem), ago-dic 2013
- Álgebra II (2do sem), ene-jun 2014
- Álgebra I (1er sem), ago-dic 2014
- Álgebra II (2do sem), ene-jun 2015
- Álgebra I (1er sem), ago-dic 2015
- Álgebra II (2do sem), ene-jun 2016
- Geometría y trigonometría (3er sem), ago-dic 2016
- Geometría Analítica (4to sem), ene-jun 2017
- Geometría y trigonometría (3er sem), ago-dic 2017
- Geometría Analítica (4to sem), ene-jun 2018
- Álgebra I (1er sem), ago-dic 2018
- Algebra II (2ndo sem), ene-jun 2019
- Álgebra I (1er sem), ago-dic 2019
- Algebra II (2ndo sem), ene-jun 2020
- Álgebra I (1er sem), ago-dic 2020
- Álgebra I (1er sem), ago-dic 2022
- Álgebra II (2ndo sem), ene-jun 2023
- Short:
- 1957: born, Israel.
- 1983: B.A., Math+Physics, Hebrew U., Jerusalem.
- 1985: M.A, Math, Hebrew U., Jerusalem.
- 1991: Ph.D. , Univ. of California, Berkeley ("Yang Mills Fields
which are not self-dual").
- 1991-4: Post-doc, Univ. of Arizona, Tucson.
- 1994-present: CIMAT, Guanajuato, Mexico.
- Citizenship: Mexico, Israel.
- Math interests: differential geometry, mathematical physics
(mostly).
- Other interests: woodworking, music, ...
- Full
- Beautiful science lectures
- Solar Graph for Guanajuato
-
Things in Java.
- Immunoglobulin (animated jif, about 250K). Some kind of protein, I think. Dowloaded from http://www.umass.edu/microbio/rasmol/.
- imrot shefer (also this)
- some view
- special html symbols;
more symbols
- Latex math symbols (PDF)
- A woodworkers puzzle, The solution
- An optical effect (needs Windows. Click
on the icon and stare on the center of the screen for 30
seconds. Then look at yr hand on the mouse. Dont scream).
- an annoying optical ilussion.
- Rotation (to stop the rotation
look at a single point for a while). More here, or
here.
- Elephant
- A yidish parrot,
- Another parrot joke,
- Anecdote: English, spanish
- Nothing
- Incompetent design
- on teaching
math to kids,
- A topological puzzle | solution
- Tokyo water park,
- World Map
- Condi + George
- Transverse Mercator Calculator (also a spanish version)
- Sudoku:1, 2
- Scott Kim
- scale
- Grucho }8-)>
- El Orito (si este no funcina intente aqui)
- Woodwork
- Science
- Health
- Politics
Bye :-)
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