| Mar 10, 2022 |
"Annual Conference of the Fachgruppe Computeralgebra of the DMV" (virtual)
Munich, Germany / virtual. |
|
The SONC Cone: Primal and Dual Perspectives. |
| Sep 20, 2021 |
Workshop "Numerical and Probabilistic Nonlinear Algebra"
Max Planck Institute for Mathematics in the Sciences; Leipzig, Germany. |
|
An Introduction to Nonnegativity and Polynomial Optimization. |
| Sep 16, 2021 |
Workshop "POEMA (Polynomial Optimization, Efficiency through Moments and Algebra) ITN Learning Week" (virtual)
LAAS-CNRS, Toulouse, France / virtual. |
|
An Introduction to Circuitpolynomials and AM/GM-based Certificates of Nonnegativity. |
| Aug 16, 2021 |
Minisymposium "Computational Real Algebraic Geometry" at the 2021 SIAM Conference on Applied Algebraic Geometry (virtual),
Texas A&M University, TX, USA / virtual. |
|
Talk cancelled due to COVID-19 vaccination side effects |
| Mar 21, 2021 |
Online-Workshop "Computational Algebra 2021" (virtual)
Oldenburg, Germany / virtual. |
|
An Introduction to Nonnegativity and Polynomial Optimization. |
| Mar 14, 2021 |
AMS special session on "Optimization and Real Algebraic Geometry" at the Spring 2021 Southeastern Sectional Meeting 2021 (online)
Georgia Tech, Atlanta, GA, USA. |
|
Certificates of Nonnegativity and Their Applications in Theoretical Computer Science. |
Sep 14-17, 2020 |
Minisymposium "Computeralgebra" at the DMV Jahrestagung,
TU Chemnitz, Germany. |
|
Minisymposium cancelled due to COVID-19. |
| June 15-24, 2020 |
Workshop "Computational Algebraic Geometry" at the FoCM 2020 Conference, Simon Fraser University, Vancouver, Canada. |
|
Cancelled due to COVID-19. |
| Oct 8, 2019 |
"Varieties, Polyhedra, Computation" Opening Conference for the MATH+ Semester on Applied Algebraic Geometry,
TU Berlin, Germany. |
|
Discriminants, Nonnegativity, and Tropical Geometry |
| Sep 27, 2019 |
Workshop "Discrete Geometry with a View on Symplectic and Tropical Geometry";
Univ. of Cologne, Germany. |
|
Discriminants, Nonnegativity, and Tropical Geometry |
| Aug 6, 2019 |
Cluster "Conic, Copositive and Polynomial Optimization" at the ICCOPT 2019 in
Berlin, Germany. |
|
New Dependencies of Hierarchies in Polynomial Optimization |
| July 11, 2019 |
Minisymposium "Numerical Methods for Structured Polynomial Solving" at the 2019 SIAM Conference on Applied Algebraic Geometry in
Bern, Switzerland. |
|
Polyhedral Real Homotopy Continuation |
| March 20, 2019 |
Conference "Mathematics of Quantum Information", Siegen, Germany. |
|
New Dependencies of Hierarchies in Polynomial Optimization |
| Dec 14, 2018 |
Workshop "Applied Algebraic Geometry", Bristol, UK. |
|
Nondegenerate Multistationarity in Small Reaction Networks |
| Nov 21, 2018 |
Session "Semidefinite Optimization and Applications" at the PGMO Days 2018, EDF'Lab Paris-Saclay, France. |
|
An Experimental Comparison of SONC and SOS Certificates for Unconstrained Optimization |
| Nov 3, 2018 |
AMS Special Session on "Numerical Methods for Nonlinear Systems", University of Arkansas, Fayetteville, AR, USA. |
|
Polynomial Optimization via SONC Certificates |
| Oct 19, 2018 |
Workshop "Real Algebraic Geometry and Optimization", ICERM, Brown University, RI, USA. |
|
An Experimental Comparison of SONC and SOS Certificates for Unconstrained Optimization |
| Oct 2, 2018 |
Workshop on "Hot Topics: Shape and Structure of Materials", MSRI, Berkeley, CA, USA. |
|
An Introduction to Computational Algebraic Geometry and Polynomial Optimization |
| July 12, 2018 |
Session "Theory of Convex Optimization" at the 2018 SIAM Annual Meeting in Portland, OR, USA. |
|
Optimization over the Boolean Hypercube via Sums of Nonnegative Circuit Polynomials |
| July 3, 2018 |
Workshop "Relative Entropy Programming" at the ISMP 2018 in Bordeaux, France. |
|
Optimization over the Hypercube via Sums of Nonnegative Circuit Polynomials |
| Feb 22, 2018 |
Workshop "Combinatorics, Polytopes, and Complexity" during the semester programm "Tropical Geometry, Amoebas, and Polytopes", Institut Mittag-Leffler, Djursholm, Sweden. |
|
The Lattice of Amoebas |
| Nov. 14, 2017 |
Session "Hierarchies of Certified Convex Programs for Polynomial Systems" at the PGMO Days 2017, EDF'Lab Paris-Saclay, France. |
|
Cancelled due to sickness. |
| Aug. 4, 2017 |
Minisymposium "Semidefinite Optimization and Convex Algebraic Geometry" at the 2017 SIAM Conference on Applied Algebraic Geometry, Atlanta, GA. |
|
The Relation between SOS and SONC |
| July 11, 2017 |
Workshop "Computational Algebraic Geometry" at FoCM 2017, Barcelona, Spain. |
|
A Positivstellensatz for Sums of Nonnegative Circuit Polynomials |
| May 22-25, 2017 |
"2017 SIAM Conference on Optimization", Vancouver, Canada. |
|
Cancelled due to move to Germany |
| Nov. 14, 2016 |
"INFORMS Annual Meeting", Nashville, TN. |
|
New Certificates for Nonnegativity via Circuit Polynomials |
| Nov. 12, 2016 |
AMS special session on "Applied Algebraic Geometry", NCSU, Raleigh, NC. |
|
New Certificates for Nonnegativity via Nonnegative Circuit Polynomials |
| May 4, 2016 |
"Eighth Discrete Geom. and Algebr. Combinatorics Conf.", South Padre Island, TX. |
|
New Certificates for Nonnegativity via Circuit Polynomials and Geometric Programming |
| April 9, 2016 |
"Meeting on Algebraic Geometry for Applications", Clemson University, SC. |
|
New Certificates for Nonnegativity via Circuit Polynomials and Geometric Programming |
| Aug. 4, 2015 |
"SIAM Conference on Applied Algebraic Geometry", NIMS & KAIST, Deajeon, South Korea. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| May 29, 2015 |
"Workshop on NonLinear Algebra", Academy of Sciences and Humanity, Berlin, Germany. |
|
Computing Amoebas |
| May 1, 2015 |
"Tropical Aspects in Geometry, Topology and Physics", MFO, Oberwolfach, Germany. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| June 27, 2014 |
"Tropical Dibbelabbes", Saarland University, Saarbrücken, Germany. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Sep. 3, 2013 |
"Tropical Geometry and Topology", MPI, Bonn, Germany. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| July 30, 2011 |
"4th PhD-students Conference on Tropical Geometry", Technische Universität Kaiserslautern, Germany. |
|
The Configuration Space of Amoebas with Barycentric Simplex Newton Polytope |
| Oct. 2, 2009 |
"DMV-Studierendenkonferenz", Ruhr Universität, Bochum, Germany. |
|
Polytopes with Special Simplices |
| Dec. 11, 2009 |
"1st PhD-students Conference on Tropical Geometry", Technische Universität Berlin, Germany. |
|
Amoebas of Genus at Most One |
| Oct. 11, 2019 |
"Herbstplenum der Jungen Akademie", Katholische Akademie Hamburg, Germany. |
|
Artificial Intelligence in Medicine (poster presentation; joint with I. N. Schellinger) |
| Oct. 11, 2019 |
"Herbstplenum der Jungen Akademie", Katholische Akademie Hamburg, Germany. |
|
Identifying Parameter Regions of Monostationarity via SONC (poster presentation) |
| Sep. 27, 2017 |
"First annual meeting of the DFG collaborative research center SFB-TRR 195", RWTH Aachen, Germany. |
|
Lopsided Amoeba Approximation |
| Aug. 2, 2017 |
"SIAM Conference on Applied Algebraic Geometry", Atlanta, GA. |
|
Current Key Problems on Sums of Nonnegative Circuit Polynomials |
| June 10, 2017 |
Workshop "Polynomials and Polytopes", Technische Universität Berlin, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
July 26, 2016 |
"XXI Coloquio Latinoamericano de Álgebra", Universidad de Buenos Aires, Argentina. |
|
Intersections of Amoebas (poster presentation) |
| April 2, 2016 |
"TAGS 2016", University of Texas at Austin, TX. |
|
Intersections of Amoebas (poster presentation) |
| Jan. 9, 2016 |
"Joint Mathematics Meeting", Seattle, WA. |
|
Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Nov. 7, 2015 |
"TGTC '15", Rice University, Houston, TX. |
|
Norms of Roots of Trinomials (poster presentation) |
| Apr. 11, 2015 |
"TAGS 2015", Texas A&M University, College Station, TX. |
|
Norms of Roots of Trinomials (poster presentation) |
| March 15, 2014 |
Annual conference of the DFG priority project SPP 1489 "Algorithmic and experimental methods
in algebra, geometry, and number theory", Bad Boll, Germany. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Sep. 25, 2013 |
"ÖMG-DMV Congress 2013", University of Innsbruck, Austria. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| Sep. 18, 2012 |
"DMV-Jahrestagung", Saarland University, Saarbrücken, Germany. |
|
Tropical Approaches to Amoebas Supported on a Circuit |
| April 2, 2012 |
Workshop "Tropical Geometry", ICMS, Edinburgh, Scotland. |
|
The Configuration Space of Amoebas (poster presentation) |
| Nov. 12, 2010 |
"Kolkom 2010", MPI, Saarbrücken, Germany. |
|
Polytopes with Special Simplices |
| Oct 07, 2021 |
Applied Algebra Seminar (online), University of Wisconsin at Madison, Wi, USA.. |
|
Certificates of Nonnegativity and Maximal Mediated Sets |
| March 09, 2021 |
SIAM SAGA - Seminar on Applied Geometry and Algebra (online), Recurring monthly virtual seminar by the SIAM algebraic geometry activity group.. |
|
Certificates of Nonnegativity and Their Applications in Theoretical Computer Science |
| Jan 21, 2021 |
Oberseminar Algebraische Geometrie, LUH Hannover, Germany (online). |
|
Nonnegativity, Discriminants, and Tropical Geometry |
| Sep 08, 2020 |
Nonlinear Algebra Seminar Online (NASO), MPI Leipzig, Germany (online). |
|
New Dependencies of Hierarchies in Polynomial Optimization |
| June 11, 2020 |
Seminar on Combinatorial Aspects of Commutative Algebra and Algebraic Geometry (CACAAG), IITB, Bombay, India (online). |
|
Nonnegativity, Discriminants, and Tropical Geometry |
| Jan. 09, 2019 |
Discrete Mathematics and Geometry Seminar, TU Berlin, Berlin, Germany. |
|
Nondegenerate Multistationarity in Small Reaction Networks |
| Oct. 29, 2018 |
Industrial & Applied Mathematics Seminar, Texas A&M University, College Station, TX, USA. |
|
An Experimental Comparison of SONC and SOS Certificates for Unconstrained Optimization |
| Oct. 26, 2018 |
Valley Geometry Seminar, UMass Amherst, MA, USA. |
|
An Experimental Comparison of SONC and SOS Certificates for Unconstrained Optimization |
| May 14, 2018 |
Séminaire Parisien d'Optimisation, Intitut Henri Poincaré, Paris, France. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Nov 29, 2017 |
Graduiertenkolleg: "Kombinatorische Strukturen in der Geometrie", Universität Osnabrück, Germany. |
|
Discrete Structures Related to Nonnegativity |
| Nov 20, 2017 |
Graduiertenkolleg: "Methods for Discrete Structures", Technische Universität Berlin, Germany. |
|
Discrete Structures Related to Nonnegativity |
| Oct 27, 2017 |
Oberseminar "Mathematische Optimierung", Otto von Guericke Universität Magdeburg, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Aug 23, 2017 |
Discrete Mathematics and Geometry Seminar, Technische Universität Berlin, Germany. |
|
Intersections of Amoebas |
| July 14, 2017 |
Applied Mathematic Seminar, Universität Bonn, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Feb 17, 2017 |
Geometry Seminar, Texas A&M University, College Station, TX. |
|
Constrained Polynomial Optimization via SONCs and Relative Entropy Programming |
| Feb 17, 2017 |
Algebra & Combinatorics Seminar, Texas A&M University, College Station, TX. |
|
A Positivstellensatz for Sums of Nonnegative Circuit Polynomials |
| Feb 7, 2017 |
Junior Algebra & Geometry Seminar, Texas A&M University, College Station, TX. |
|
An Introduction to Tropical Geometry |
| Nov 25, 2016 |
Discrete Geometry Seminar, Freie Universität Berlin, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Nov 24, 2016 |
Discrete and Algorithmic Geometry Seminar, Technische Universität Berlin, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| April 8, 2016 |
Algebraic Geometry and Number Theory Seminar, Clemson University, SC. |
|
Intersections of Amoebas |
| March 16, 2016 |
Algebra Seminar, Universidad de Los Andes, Bogotá, Colombia. |
|
An Introduction to Amoeba Theory and Intersections of Amoebas |
| Feb. 16, 2016 |
Junior Algebra & Geometry Seminar, Texas A&M University, College Station, TX. |
|
An Introduction to Tropical Geometry |
| Feb. 11, 2016 |
Scientific and Statistical Computing Seminar, University of Chicago, IL. |
|
New Certificates for Nonnegativity via Circuit Polynomials and Geometric Programming |
| Feb. 4, 2016 |
FRAGMENT Seminar, Colorado State University, Fort Collins, CO. |
|
An Introduction to Amoeba Theory and Intersections of Amoebas |
| Feb. 3, 2016 |
Joint FRAGMENT and Poisson Geometry Seminar, University of Colorado at Boulder, CO. |
|
New Certificates for Nonnegativity via Circuit Polynomials and Geometric Programming |
| Jan. 29, 2016 |
Algebra and Combinatorics Seminar, Texas A&M University, College Station, TX. |
|
Intersections of Amoebas |
| Oct. 6, 2015 |
Algebra Seminar, Emory University, Atlanta, GA. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| Oct. 5, 2015 |
Algebra Seminar, Georgia Tech, Atlanta, GA. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Sep. 15, 2015 |
Algebraic Geometry and Number Theory Seminar, Rice University, Houston, TX. |
|
Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| June 26, 2015 |
CAKE Seminar, Universität Osnabrück, Germany. |
|
An Introduction to Amoeba Theory |
| June 11, 2015 |
Oberseminar Algebraische Geometrie, Universität Augsburg, Germany. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| March 6, 2015 |
Algebra and Combinatorics Seminar, Texas A&M University, College Station, TX. |
|
A Sharp Upper Bound for the Complexity of Labeled Oriented Trees |
| Feb. 19, 2015 |
Number Theory Seminar, University of Texas at Austin, TX. |
|
Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Feb. 16, 2015 |
Geometry Seminar, Texas A&M University, College Station, TX. |
|
The Boundary of Amoebas |
| Sep. 30, 2014 |
Student Working Seminar in Discrete Math., Texas A&M University, College Station, TX. |
|
An Introduction to Amoeba Theory |
| Sep. 29, 2014 |
Geometry Seminar, Texas A&M University, College Station, TX. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Sep. 23, 2014 |
Student Working Seminar in Discrete Math., Texas A&M University, College Station, TX. |
|
An Introduction to Tropical Geometry |
| June 5, 2014 |
Discrete Geometry Seminar, Freie Universität Berlin, Germany. |
|
Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Jan. 28, 2014 |
Research Group "Polyhedral Surfaces", Technische Universität Berlin, Germany. |
|
An Introduction to Amoeba Theory |
| Jan. 28, 2014 |
AG Diskrete Mathematik, Goethe University, Frankfurt/Main, Germany. |
|
The Boundary of Amoebas |
| Jan. 15, 2014 |
Oberseminar: Optimierung, Geometrie und diskrete Math., Universität zu Köln, Germany. |
|
Amoebas, Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Dec. 5, 2013 |
Oberseminar Algebraische Geometrie und Computeralgebra, Saarland University, Saarbrücken, Germany. |
|
The Boundary of Amoebas |
| July 12, 2013 |
AG Diskrete Mathematik, Goethe University, Frankfurt/Main, Germany. |
|
Contemporary Key Problems in Amoeba Theory |
| Oct. 28, 2012 |
PhD-students seminar, Goethe University, Frankfurt/Main, Germany. |
|
An Introduction to Amoeba Theory |
| June 27, 2012 |
AG & Oberseminar Diskrete Mathematik, Goethe University, Frankfurt/Main, Germany. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| June 8, 2012 |
Working group algebra and combinatorics, CWI, Amsterdam, The Netherlands. |
|
Separating Inequalities for Nonnegative Polynomials that Are not Sums of Squares |
| June 6, 2012 |
Séminaire de Géométrie Tropicale, Université Pierre et Marie Curie (Paris 6), Paris, France. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| May 23, 2012 |
Oberseminar "Kombinatorik und Algebra", Philipps-Universität, Marburg, Germany. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |
| Feb. 1, 2012 |
Research Seminar, Université de Genève, Switzerland. |
|
Contemporary Key Problems in Amoeba Theory |
| July 5, 2011 |
AG & Oberseminar Diskrete Mathematik, Goethe University, Frankfurt/Main, Germany. |
|
The Configuration Space of Amoebas with Barycentric Simplex Newton Polytope |
| Nov 27, 2010 |
Research Seminar, Courant Research Centre, Göttingen, Germany. |
|
(Co)Amoebas: Different Aspects of Approximation, Boundary and Homotopy |
| Dec. 18, 2009 |
AG & Oberseminar Diskrete Mathematik, Goethe University, Frankfurt/Main, Germany. |
|
Amoebas of Genus at Most One |
| Jan 19, 2022 |
Colloquium, Universität Osnabrück (virtual), Germany. |
|
The SONC Cone: Primal and Dual Perspectives |
| Nov 06, 2020 |
Colloquium, Universität des Saarlandes, Germany. |
|
A New Approach to Nonnegativity and its Applications |
| May 22, 2019 |
Colloquium, Universität Osnabrück, Germany. |
|
An Introduction to Nonnegativity and Polynomial Optimization |
| June 26, 2018 |
Colloquium, TU Kaiserlautern, Germany. |
|
Ein neuer Ansatz zu Nichtnegativität und polynomieller Optimierung |
| May 24, 2018 |
Colloquium, Universität Siegen, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| May 3, 2018 |
Colloquium, Otto von Guericke Universität Magdeburg, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| March 27, 2018 |
Colloquium, TU Braunschweig, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Jan. 17, 2018 |
Colloquium, Universität Trier, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| June 12, 2017 |
Colloquium, Universität Leipzig, Germany. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Dec. 14, 2016 |
Colloquium, University of Massachusetts at Amherst, Amherst, MA. |
|
A New Approach to Nonnegativity and Polynomial Optimization |
| Oct. 5, 2016 |
Colloquium, Sam Houston State University, Huntsville, TX. |
|
An Introduction to Amoeba Theory |
| Oct. 19, 2015 |
Postdoc Colloquium, Texas A&M University, College Station, TX. |
|
Nonnegative Polynomials and Sums of Squares Supported on Circuits |
| Oct. 9, 2014 |
Postdoc Colloquium, Texas A&M University, College Station, TX. |
|
Roots of Trinomials from the Viewpoint of Amoeba Theory |