- Talk at MaPhyAG workshop: integrability,
geometry, and QFT (Complutense University, Madrid, Spain,
Oct 7-11 2024) on An introduction to decomposition.
- Talk at The geometry of moduli spaces in string theory
(Matrix Institute, Creswick, Australia, Sept 2-13, 2024) on
Notes on the Bagger-Witten line bundle.
- Talk at Geometry and symmetries of SCFTs
(Mainz, Germany, June 17-21, 2024) on
An introduction to decomposition.
- Talk at Macaulay2, computational algebraic geometry and string theory
(University of Utah, May 28-30, 2024) on
Yukawa couplings and generalizations of
Gromov-Witten invariants
- Talk at Texas A-M University, in-person, on April 29, 2024 on
Generalized symmetries and gauge theory
multiverses
- Talk at M-theory and mathematics (Abu Dhabi, Jan 15-17, 2024)
on
Decomposition and the Gross-Taylor string
- Talk at Queen Mary (London, zoom) on October 26, 2023 on
Decomposition and the Gross-Taylor string
- Talk at GLSM@30 (Simons Center, Stony Brook, May 22-26, 2023)
on
A survey of recent developments in
GLSMs
- Talk at University of Toronto, in-person, on April 17, 2023 on
Generalized symmetries and gauge theory
multiverses
- Talk at Technion (Israel), zoom, on February 6, 2023 on
Generalized symmetries and gauge theory
multiverses
- Talk at Academia Sinica (Taiwan), zoom, on January 30, 2023 on
A proposal for nonabelian mirrors in two-dimensional theories
- Talk at M theory and Mathematics (Abu Dhabi, Jan 12-15, 2023) on
An introduction to decomposition
- Talk at BIMSA workshop on string theory
(Beijing, China, Nov 8-11, 2022) on
Generalized symmetries and gauge theory
multiverses
- Talk at Symmetry seminar (zoom) on July 5, 2022 on
An introduction to decomposition
- Talk at BIMSA (Beijing, China), zoom, on May 18, 2022 on
An introduction to decomposition
- Talk at Imperial (UK), zoom, on May 18, 2022 on
An introduction to decomposition
- Talk at SISSA (Italy), zoom, on April 20, 2022 on
An introduction to decomposition
- Talk at IBS (South Korea), zoom, on March 29, 2022 on
An introduction to decomposition
- Talk at the University of the Witwatersrand (South Africa), zoom,
on March 22, 2022 on
An introduction to decomposition
- Talk at Liverpool (UK), zoom, on March 15, 2022 on
An introduction to decomposition
- Talk at UVA, zoom, on March 9, 2022 on
An introduction to decomposition
- Talk at ICTS (India), zoom, on March 2, 2022 on
An introduction to decomposition
- Talk at IPMU (Tokyo, Japan), zoom, on February 21, 2022 on
An introduction to decomposition
- Talk at City College of New York, zoom, on February 17, 2022 on
An introduction to decomposition
- Talk at University of Amsterdam, zoom, on February 15, 2022 on
An introduction to decomposition
- Talk at Heriot-Watt University (Edinburgh, UK), zoom,
on February 9, 2022 on
An introduction to decomposition
- Talk at CERN, zoom, on February 8, 2022 on
An introduction to decomposition
- Talk at University of Illinois, Urbana-Champaign, zoom,
on February 3, 2022 on
An introduction to decomposition
- Talk at Brandeis University, zoom, on February 1, 2022 on
An introduction to decomposition
- Talk at Matrix meeting
2d supersymmetric theories and related topics (zoom,
hosted by University of Melbourne, Australia, Jan 17-28, 2022) on
January 25, 2022 on
An introduction to decomposition
- Talk at Weizmann Institute, Israel, zoom, on January 24, 2022 on
An introduction to decomposition
- Talk at Univ Chicago, zoom, on January 19, 2022 on
An introduction to decomposition
- Talk at Perimeter Institute, zoom, on January 11, 2022 on
An introduction to decomposition
- Talk at Heidelberg/Mainz/Munich/Vienna joint seminar, zoom,
on January 10, 2022 on
Application of decomposition to anomaly
resolution
- Talk at Tsinghua University, zoom, on December 8, 2021 on
Application of decomposition to anomaly
resolution
- Talks at String and M-theory: the new geometry
of the 21st century: II (NUS, Singapore), zoom:
November 23, 2021, 1.5 hour lecture on
An introduction to decomposition;
December 1, 2021, 45 minute lecture on
Application of decomposition to
anomaly resolution
- Talk at Harvard/MIT quantum matter seminar, zoom, October 29, 2021,
on Application of decomposition to anomaly
resolution, video
- Talk at Uppsala University, Sweden, zoom, October 6, 2021, on
Decomposition of quantum field theories.
- Talk at Nankai Symposium: Mathematical Dialogues
(Tianjin, China), zoom, August 3, 2021,
on
Decomposition of quantum field theories
- Talk at Cambridge, UK, zoom, June 10, 2021 on
Decomposition in 2d theories with 1-form symmetries
- Talk at String-Math 2020, zoom, July 27, 2020 on
Gauging one-form symmetries in two-dimensional theories
- Talk at Oxford University, zoom, April 27, 2020 on
Two-dimensional theories with one-form symmetries
- Talk at UC Davis, zoom, April 24, 2020 on
Some developments in supergravity moduli spaces
- Talk at University of Chicago, February 26, 2020 on
Recent developments in supergravity moduli spaces.
- Talk at University of Illinois, Urbana-Champaign, February 24, 2020 on
Recent developments in supergravity moduli spaces.
- Talk at Max-Planck Institute for Gravitational Physics (Albert Einstein
Institute), Potsdam, Germany, February 17, 2020 on
Recent developments in supergravity moduli spaces.
- Talk at Universita Milano-Bicocca, Italy, February 12, 2020 on
Decomposition of two-dimensional theories with one-form symmetries.
- Talk at SISSA, Italy, February 11, 2020 on
A proposal for nonabelian mirrors in two-dimensional theories.
- Talk at IFT, Madrid, Spain, February 7, 2020 on
Recent developments in supergravity moduli spaces.
- Talk at ICMAT, Madrid, Spain, February 7, 2020, on
A proposal for nonabelian mirrors.
- Talk at M-theory and mathematics (NYU-Abu Dhabi, United Arab Emirates, January 27-30,
2020) on
Gauging one-form symmetries in two-dimensional theories.
- Two talks at University of South Carolina, Columbia, October 25, 2019:
Introduction to mirror symmetry, A proposal for nonabelian mirrors.
- Talk at Northeastern University, October 11, 2019, on
Developments in the Bagger-Witten line bundle.
- Departmental colloquium at Northeastern University,
October 10, 2019, on Nonperturbative effects from classical physics.
- Talk at The geometry and algebra of Landau-Ginzburg models
(Fields Institute, Toronto, September 16-20, 2019) on
A proposal for nonabelian mirrors
- Talk at Texas A & M, September 2, 2019, on
Some developments in supergravity moduli spaces.
- Talk at University of Vienna, Austria, May 28, 2019, on
A proposal for nonabelian mirrors
- Talk
at Ludwig-Maximilians Universitat, Munich, Germany,
May 23, 2019 on
A proposal for nonabelian mirrors
- Talk at University of Illinois, Urbana-Champaign on March 14, 2019 on
A proposal for nonabelian mirrors
- Talk at String
and M-theory: the new geometry of the 21st century (Singapore,
December 10-14, 2018) on
A proposal for nonabelian mirrors
- Talk at Duke University on October 4, 2018 on
A proposal for nonabelian mirrors
- Talk at Higher
structures in M-theory (Durham, UK, August 12-18, 2018) on
Sigma models on gerbes
- Talk at CERN (Geneva, Switzerland) on July 17, 2018 on
A proposal for nonabelian mirrors
- Talk at DESY (Hamburg, Germany) on July 12, 2018 on
A proposal for nonabelian mirrors
- Talk at University of Bonn on July 10, 2018 on
A proposal for nonabelian mirrors
- Talk at Universitat Heidelberg on July 9, 2018 on
A proposal for nonabelian mirrors
- Three talks at the National University of Singapore, January 8-12, 2018,
on ``Examples of Bagger-Witten line bundles,'' ``Duality group
actions on fermions,'' ``Generalized global symmetries in QFT.''
- Talk at String field theory of
Landau-Ginzburg models (POSTECH, Institute for Basic Science,
Center for Geometry and Physics, Pohang, South Korea,
September 11-15, 2017) on
''An introduction to quantum sheaf cohomology and (0,2) mirrors''
- Talk at Enumerative
geometry, mirror symmetry, and physics (University of Illinois,
Urbana-Champaign, July 17-21, 2017) on
``An introduction to quantum sheaf cohomology''
- Talk at Recent developments in rationality questions (Erwin
Schrodinger Institute, Vienna, Austria, April 24-28, 2017) on
``Quantum sheaf cohomology and mirrors to Fano spaces''
- Talk at TU Wien, Vienna, Austria, on April 20, 2017 on
``Dualities and the metaplectic group''
- Talk at POSTECH, Institute for Basic Science, Center for Geometry
and Physics, Pohang, South Korea, on March 8, 2017 on
``Introduction to quantum sheaf cohomology''
- Mentor/lecturer at Superschool on derived categories and D-branes
(Edmonton, Canada, July 17-23, 2016).
- Talk at (0,2) in
Paris (Paris, France, May 30-June 3, 2016) on
Quantum sheaf cohomology.
- Talk at IPMU (Tokyo, Japan) on May 10, 2016, on
Recent developments in 2d (0,2) theories
- Talk at Homological mirror geometry (Banff, Canada, March 7-11, 2016) on
Heterotic mirror symmetry, and quantum sheaf
cohomology
- Talk at Geometry in gauge theories and string theory (Korea
Institute for Advanced Studies, Seoul, South Korea, September 15-18,
2015) on Recent developments in 2d (0,2) theories
- Talk at University of California Berkeley on May 12, 2015,
on Recent developments in 2d (0,2) theories
- Talk at University of California Davis on May 11, 2015,
on Chiral rings in 2d (0,2) theories
- Talk at University of Texas-Austin, math department on April 1, 2015,
on An introduction to quantum sheaf cohomology.
- Talk at University of Texas-Austin, physics department,
on March 31, 2015, on
Recent developments in 2d (0,2) theories
- Talk at special session on mirror symmetry
at fall southeastern
sectional AMS meeting (Greensboro, NC, November 8-9, 2014) on
An introduction to heterotic mirror symmetry
- Talk at Gauged
sigma models in two dimensions (Simons Center, Stony Brook, NY,
November 3-7, 2014) on Chiral rings in
2d (0,2) theories
- Talk at Exact results in
susy gauge theories in various dimensions (CERN, Switzlerand,
August 11-22, 2014) on Duality in two-dimensional
nonabelian gauge theories
- Talk at Universitat Bonn (Bonn, Germany) on July 29, 2014, on
Recent developments in 2d (0,2) theories
- Math/physics colloquium at Albert-Ludwigs-Universitat (Freiburg, Germany)
on July 25, 2014, on An introduction to
mirror symmetry
- Talk at Albert-Ludwigs-Universitat (Freiburg, Germany) on July 24, 2014,
on Sheaf-theoretic analogues of Mathai-Quillen forms.
- Math/physics colloquium at
Institute
for Theoretical Physics
(Heidelberg, Germany) on July 22, 2014
on An introduction to mirror symmetry
- Talk at Institute
for Theoretical Physics
(Heidelberg, Germany) on July 21, 2014
on Duality in two-dimensional nonabelian
gauge theories
- Talk at Heriot-Watt University (Edinburgh, Scotland) on July 18, 2014
on Recent developments in 2d (0,2) theories.
- Talk at String-Math 2014 (University of Alberta, Edmonton, Canada, June 9-13, 2014)
on Recent developments in 2d (0,2) theories.
- Talk at Heterotic strings and (0,2) QFT (Texas A&M, April 28 -
May 2, 2014) on
Recent developments in 2d (0,2) theories
- Talk at University of Amsterdam on March 14, 2014, on
Quantization of Fayet-Iliopoulos parameters
in supergravity.
- Talk at TU Wien
(physics) on March 10, 2014 on
Duality in two-dimensional nonabelian
gauge theories.
- Two talks at Third
international satellite conference on Mathematical methods in physics
(Universidade Estadual de Londrina, Brazil, October 21-26, 2013) on
Some new advances in gauged linear sigma models.
- Talk at Matrix
factorizations in algebra, geometry, and physics (Mathematisches
Forschungsinstitut Oberwolfach, Germany, September 2-6, 2013) on
Matrix factorizations and homological projective duality in
physics.
- Talk at Matrix factorizations (Erwin Schrodinger Institute, Vienna, Austria,
May 13-17, 2013) on Examples of homological
projective duality in physics.
- Talk at Geometry and physics of gauged linear sigma models (University of
Michigan, March 4-8, 2013), on Predictions for
Gromov-Witten invariants of a noncommutative resolution.
- Talk at String theory and generalized geometries (Banff, Canada, December 2-7, 2012),
on Abelian GLSMs, gerbes, nc resolutions,
and homological
projectve duality (or see
here).
- Talk at Homological projective
duality and quantum gauge theory
(IPMU, Tokyo, Japan, November 12-16, 2012) on
Abelian GLSMs, gerbes,
and homological projective duality.
- Talk at University of Michigan
(physics) on October 10, 2012 on
Quantization of Fayet-Iliopoulos parameters
in supergravity
- Talk at University of Michigan
(math) on October 8, 2012 on
An introduction to quantum sheaf cohomology.
- Talk at Syzygies in algebraic geometry (Banff, Canada, August 13-17, 2012) on
Boundary terms in 2d theories and matrix factorizations
(see here for video)
- Talk at City University
(London, Britain) on June 14,
2012 on An introduction to quantum sheaf
cohomology
- Talk at Max-Planck
Institute for Physics (Munich, Germany)
on June 12, 2012 on Quantization of
Fayet-Iliopoulos parameters in supergravity
- Talk at Max-Planck
Institute for Physics (Munich, Germany)
on June 11, 2012 on An introduction to
quantum sheaf cohomology
- Talk at Institute for
Theoretical Physics
(Heidelberg, Germany) on June 8, 2012 on
Quantization of Fayet-Iliopoulos parameters
in supergravity
- Talk at the Instituto de Ciencias
Matematicas (ICMAT) (Madrid, Spain) on
June 4, 2012
on An introduction to quantum sheaf cohomology (blackboard talk).
- Talk at Seventh
international conference on mathematical methods in physics (Rio de Janeiro,
Brazil, April 16-20, 2012) on
Introduction to heterotic mirror symmetry
- Talk at University of Minnesota on February 24, 2012 on
An introduction to quantum sheaf cohomology
- Talk at Perimeter Institute (Waterloo, Canada) on November 23, 2011
on Moduli of heterotic string
compactifications
- Talk at SESAPS, October 2011, on Quantization
of Fayet-Iliopoulos parameters in supergravity
- Nine-hour lecture series on Derived categories in string theory
(Tsinghua University, Beijing, August 1-12, 2011)
- Talk at (0,2)
mirror symmetry and heterotic topological strings (Erwin Schrodinger
Institute, Vienna, Austria, June 20-24, 2011) on June 22, 2011 on
An introduction to quantum sheaf
cohomology
- Talk at
String Vacuum Project meeting (University of Pennsylvania,
May 23-25, 2011) on May 25, 2011 on
Discrete symmetries in string theory and
supergravity
- Talk at Stanford University on May 16, 2011 on
Quantization
of Fayet-Iliopoulos parameters in supergravity
- Talk at Texas A&M on May 9, 2011 on
Quantization
of Fayet-Iliopoulos parameters in supergravity
- Talk at SE regional mathematical string theory meeting (Duke,
April 2, 2011) on ``Quantization of Fayet-Iliopoulos parameters in
supergravity''
- Talk at network meeting
New geometric and non-geometric vacua
in string theory (Imperial, London, February 12, 2011) on ``An introduction
to strings on gerbes''
- Talk at SPOCK meeting (Cincinnati, November 13, 2010) on ``Quantization
of Fayet-Iliopoulos parameters in supergravity''
- Talk at
Categorical
methods in geometry and gauge theory (Tianjin, China, August 29 - Sept 3,
2010) on An introduction to quantum sheaf
cohomology
- Co-organizer of Summer school
on mathematical string theory 2010
- Talk at CERN on June 8, 2010 on ``An overview of progress on quantum
sheaf cohomology''
- Talk at
Workshop on geometry and physics of the
Landau-Ginzburg model
(Grenoble, France, May 31 - June 4, 2010) on
An overview of progress on
quantum sheaf cohomology
- Talk at Generalized Geometries workshop (Brandeis, March 25-28, 2010)
on Quantum sheaf cohomology
- Talk at (0,2) mirror symmetry and heterotic Gromov-Witten invariants
(Banff, Canada, March 8-12, 2010) on
Quantum sheaf cohomology
- Talk at
WAGP 2009
(Maresias, Brazil, September 14-18, 2009)
on
A-twisted Landau-Ginzburg models, gerbes,
and Kuznetsov's homological projective duality
- Opening talk at
(0,2) mirror symmetry and quantum sheaf cohomology
(Max-Planck-Institut, Potsdam, August 17-21, 2009)
on
An overview of progress towards
(0,2) mirror symmetry
- Talk at
Quantum theory and symmetries 6
(University of Kentucky, Lexington, July 20-24, 2009)
on GLSMs, gerbes, and
Kuznetsov's homological projective duality
- Lectured and mentored at
Geometry of quantum
fields and strings (summer school, University of Pennsylvania,
June 8-20, 2009)
- Talk at
Topology, C* algebras, and
string duality (Texas Christian University, Fort Worth, TX, May 18-22, 2009)
on Landau-Ginzburg models, gerbes, and
Kuznetsov's homological projective duality
- Talk at Austin (February 24, 2009) on
A-twisted Landau-Ginzburg models;
talk at Austin (February 25, 2009) on
GLSM's, gerbes, and Kuznetsov's homological
projective duality
- Talk at
Workshop on the
geometry and physics of the Landau-Ginzburg model (Clay Math
Institute, Boston, January 12-16, 2009) on
A-twisted Landau-Ginzburg models, gerbes,
and Kuznetsov's homological projective duality
- Talk at
Workshop on Topology and Physics (Drexel University, September 8-9,
2008) on Heterotic mirror symmetry
- Talk at
Bundles, gerbes, and derived categories in string theory (Salamanca,
May 14-16, 2008) and at the University of Pennsylvania (September 2008)
on ``GLSM's, gerbes, and Kuznetsov's homological
projective duality''
- Talk at Stanford University (March 2008), Berkeley (March 2008),
SPOCK IX meeting (Cincinnati, January 2008),
Texas A & M (November 2007), and the
Workshop on
recent developments in string effective actions and D-instantons
(Max-Planck, Munich,
November 14-16, 2007) on ``Heterotic
swamplands?''
- Talk at Berkeley (March 2008) on ``GLSM's,
gerbes, and Kuznetsov's homological projective duality''
- Talk at the AMS Summer Research Conference 2007 on derived categories in mathematics and physics
(co-organizer),
on ``GLSM's, gerbes, and Kuznetsov's homological projective duality''
- Lectures at the
June 2007 Utah minicourse on derived categories (co-organizer)
- Talk at the Sowers theoretical
physics workshop 2007 (co-organizer)
on ``Recent developments in heterotic compactifications''
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![[Virginia Tech Department of Physics]](a_physics3.gif)
