- I am one of the organizers of the 2015 Midwestern Workshop on Asymptotic Analysis at IU Bloomington, October 9-11, funded in part by NSF grant DMS 1545971 (PI: Norm Levenberg).
- I was a 2014 recipient of IPFW's Pippert Science Research Scholar Award.
- I was awarded a grant from the Overseas Conference Fund, Indiana University Office of International Programs, May 2007.
- I was the 2007 recipient of the IPFW Sigma Xi society's Researcher of the Year Award, and the 2008-09 President of the IPFW chapter.
- In 2007, I was inducted as a faculty member of the IPFW chapter of Phi Kappa Phi.
- I participated in IPFW's Featured Faculty public relations campaign, 2006-2008.
- I was the 2005 recipient of IPFW's Pippert Science Research Scholar Award.
- In 2004, I was inducted as a faculty member of the IPFW chapter of Pi Mu Epsilon.
- I was one of the organizers of a "Physics-Based Calculus" Workshop at IPFW, for four sessions: June 7-9, 2004, June 16-18, 2003, June 18-19, 2002, and May 4-6, 2001. This was supported by NSF grant DUE 9555408 as part of the Indiana University system's Mathematics Throughout the Curriculum project (PI: Dan Maki).
- I was awarded an IPFW Summer Faculty Research Grant for 2001. The subject was "Hermitian Symmetry in Geometry."
- I was awarded an IPFW Summer Faculty Research Grant for 1999. The subject was "Generalizing Stereographic Projection."
- I was awarded a
**Purdue Research Foundation Summer Faculty Grant**for 1998. The subject was "The Geometry of Singularities."

- "Perturbing isolated points of algebraic space curves" - in the General Contributed Paper Session in Geometry at the August 2016 MAA MathFest in Columbus, OH. Based on joint work with J. Lebl.
- "Isolated CR singularities of real threefolds
in
*C*^{3}," at the Spring 2016 Western Section meeting of the American Mathematical Society at the University of Utah, April 9-10, in the special session on CR Geometry and Partial Differential Equations in Complex Analysis. Abstract: - "An example for Green's Theorem with discontinuous partial
derivatives" - in the General Contributed Paper Session in Analysis
at the August 2015
MAA MathFest in
Washington, DC.
- Slides from this talk: PDF
- I gave a related talk at the Fall 2015 Indiana MAA meeting at Purdue North Central, Oct. 17.

- "Continuous solutions of nonlinear Cauchy-Riemann equations and pseudoholomorphic curves in normal coordinates", at the Spring 2015 Central Section meeting of the American Mathematical Society at Michigan State University, March 14-15, in the special session on complex analysis in several variables and its applications. Abstract:
- "Green's Theorem revisited", at the the Fall 2014 Indiana Section meeting of the MAA at Trine University, October 18.
- "Real linear maps preserving some complex subspaces", at the 2014 Joint Mathematics Meeting in Baltimore, in the AMS Contributed Paper session on Lattices, Polynomials, and Linear Algebra, January 17. Abstract:
- "Real linear maps preserving some complex subspaces", at the Fall 2013 Indiana Section meeting of the MAA at the University of Southern Indiana, October 26.
- "Rational functions on real or complex weighted projective spaces," at the Fall 2013 Eastern Section meeting of the American Mathematical Society at Temple University, Oct. 12-13, in the special session on Several Complex Variables and CR Geometry. Abstract:
- "Weighted projective spaces and a generalization of Eves' Theorem," at the Analysis Seminar, University of Western Ontario, March 12, 2013.
- "Generalizing Eves' Theorem," a contributed talk at the MAA MathFest, Madison, August 2012.
- "Generalizing Eves' Theorem," Spring 2012 Indiana Section meeting of the MAA at Ball State University, March 23.
- "Smooth counterexamples to strong unique continuation for a
Beltrami system
in
*C*^{2}," SCV Seminar, University of Michigan, Nov. 14, 2011. - "Möbius transformations and ellipses," Mathematics/CS Colloquium, Wabash College, Sept. 20, 2011.
- "Möbius transformations and ellipses," a contributed talk at the MAA MathFest, Lexington, August 2011.
- "Smooth counterexamples to strong unique continuation for a
Beltrami system
in
*C*^{2}," Analysis Seminar, University of Toledo, March 2011. - "Glaeser's inequality on an interval," Contributed paper session at the MAA MathFest in Pittsburgh, Aug. 6, 2010. An abstract appears in the Abstracts Booklet from the 2010 MAA MathFest.
- "Glaeser's inequality on an interval," Spring 2010 Indiana Section meeting of the MAA at Franklin College, April 9.
- "Counterexamples to upper semicontinuity of the Kobayashi-Royden pseudonorm for rough almost complex structures," at the Spring 2010 Southeastern Sectional meeting of the American Mathematical Society, at the University of Kentucky, March 27-28, in the special session on Interactions Between Logic, Topology, and Complex Analysis. Abstract:
- "Glaeser's inequality on an interval," Spring 2010 Kentucky Section meeting of the MAA at the University of Kentucky, March 26.
- "A nonlinear differential inequality and counterexamples for Hölder continuous almost complex structures," Analysis Seminar, University of Wisconsin - Madison, Dec. 1, 2009.
- "Differential equations with no small solutions," Fall 2009 Indiana Section meeting of the MAA at Purdue Calumet, Oct. 17.
- "CR singularities of 4-manifolds
in
**C**^{3}," at the Spring 2009 Central Sectional meeting of the American Mathematical Society, at UIUC, March 27-29, in the special session on Holomorphic and CR Mappings. Abstract: - "CR singularities of 4-manifolds
in
**C**^{3}," at the PDE, Complex Analysis and Differential Geometry Seminar, University of Notre Dame, Nov. 11, 2008. - "CR singularities of 4-manifolds in
**C**^{3}," at the CR Geometry Seminar, University of Illinois - Urbana-Champaign, April 17, 2008. - "CR singularities of 4-manifolds in
**C**^{3}," at the Analysis Seminar, University of Western Ontario, April 11, 2008. - "Unfolding
CR singularities of real 4-manifolds in
**C**^{5}", Special Session on Complex Analytic Geometry at the Winter 2007 meeting of the Canadian Mathematical Society in London, ON, Dec. 7-10, 2007.

abstract - "Parabolas in Space," Fall 2007 Indiana Section meeting of the MAA at Manchester College, Oct. 27.
- "Parabolas in Space," at the 27th Annual Mathematics Symposium at Western Kentucky University, Oct. 12-13, 2007.
- "CR singularities and their unfoldings", at the conference
on
**Rigidity in Dynamics and Geometry**, at the**CIRM**in France, May 21-25, 2007. - "Proper maps
from domains in
**C**^{2}with transverse circle action", at the Midwest Several Complex Variables Conference at the University of Michigan, Ann Arbor, March 2-4, 2007. - "Unfolding
CR singularities of real 4-manifolds in
**C**^{5}", a contributed talk at the Winter 2006 meeting of the Canadian Mathematical Society in Toronto, Dec. 8-11, 2006.

abstract - "Unfolding CR singularities of real 4-manifolds in
**C**^{5}," at the Special Session on Several Complex Variables, Spring Central Sectional Meeting of the AMS, at Notre Dame, April 8-9, 2006.

abstract - "Unfolding CR singularities," at the Geometry/Topology Seminar, St. Louis University, Nov. 15, 2005.
- "Unfolding CR singularities," at the Dynamics and Global Analysis Seminar at the University of Chicago, November 9, 2005.
- "Critical points and real surfaces in complex 2-space," at the Fall meeting of the Indiana Section of the MAA, at DePauw University, Nov. 5, 2005.
- "Unfolding CR singularities," at the Several Complex Variables Seminar, University of Michigan, Oct. 24, 2005.
- "Unfolding CR singularities," at the Analysis Seminar, University of Wisconsin - Madison, Oct. 18, 2005.
- "CR singularities of real submanifolds in complex space," at the Analysis Seminar, University of Western Ontario, Sept. 21, 2005.
- "Visualizing real surfaces in the complex projective plane," a contributed talk at the Spring 2005 Meeting of the MAA Indiana Section, at IPFW, April 1, 2005.
- "Real submanifolds of high codimension in complex
*n*-space," at the Geometric Analysis Seminar, Michigan State University, March 22, 2005. - "Normal forms for some CR singularities," at the Several Complex Variables Seminar, University of Michigan, Feb. 14, 2005.
- "A survey of real submanifolds of high codimension in
," at the Differential Geometry Day conference, Eastern Illinois University, Nov. 6, 2004.**C**^{ n} - "Normal forms for some more CR singularities," at the Analysis Seminar, University of Wisconsin - Madison, Oct. 12, 2004.
- "CR singularities of real 3-manifolds in
**C**^{4}," in the*CR Geometry and Singularities*special session at the Eastern Section Meeting of the AMS at Rider University, New Jersey, April 18, 2004. - "Some examples of real submanifolds of high codimension in complex projective space," at the Geometric Potpourri Seminar, University of Illinois - Urbana-Champaign, March 9, 2004.
- "Normal forms for some CR singularities," at the Several Complex Variables Seminar, University of Illinois - Urbana-Champaign, Nov. 5, 2003.
- "Some examples of real submanifolds of high codimension in complex projective space," at the Topology Seminar, St. Louis University, May 28, 2003.
- "Some examples of real submanifolds of high codimension in complex projective space," at the Several Complex Variables Seminar, University of Michigan, March 31, 2003.
- "Möbius transformations and ellipses," a contributed talk at the Spring 2003 meeting of the MAA Indiana Section, at Butler University, March 29, 2003.
- "Real conics in the inversive plane," a contributed talk at the Midwest Several Complex Variables conference at the University of Michigan and Washtenaw Community College, Oct. 19, 2001.
- "Complex projections of real Veronese varieties," a contributed talk at the AMS meeting in Columbus, Sept. 22, 2001.
- "Normal forms for some CR singularities," at the Analysis Seminar, University of Wisconsin - Madison, March 9, 2001.
- "CR singular immersions of complex projective spaces," at the Geometry and Topology Seminar, University of Chicago, Oct. 12, 2000.
- "The real classification of Steiner surfaces," a contributed
talk at the
**Mathematical Pictures**conference at Miami University, Ohio, Sep. 29, 2000. - "A survey of real submanifolds of high codimension in
," a contributed talk at the Lehigh University Geometry and Topology Conference, June 13, 2000.**C**^{ n} - "CR singular immersions of complex projective spaces," at the Several Complex Variables Seminar, University of Michigan, Nov. 19, 1999.
- "Complexification of the CR cross-cap," at the Several Complex Variables Seminar, University of Michigan, Dec. 8, 1997.
- "Formal stability of the CR cross-cap," a contributed talk at the Midwest Several Complex Variables conference at Indiana University - Bloomington, Nov. 8, 1997.

- "pi vs. tau debate," joint with A. Rich, at the Spring 2015 meeting of the Indiana MAA at Taylor University, March 13. YouTube video clip (18 min. 37 sec.)
- "Geometry and Soap Bubbles," a PI Math Club talk, Nov. 14, 2014.
- "Geometry in Perspective," PI Math Club Talk, Nov. 13, 2013.
- "Why Geometry Matters," an audio podcast in the IPFW COAS Vistas and Viewpoints interview series, Spring 2011.
- "Geometry and Soap Bubbles," in the "Lunch with a Scientist" presentation series at Science Central, Dec. 11, 2010.
- "Geometry in Nature," in the "Lunch with a Scientist" presentation series at Science Central, April 10, 2010.
- "Möbius transformations and ellipses," Pi Mu Epsilon, IPFW chapter, Spring 2010 induction.
- "Packing Ellipsoids," a PI Math Club talk, Nov. 17, 2008.
- "A Survey of Projective Geometry," a Sigma Xi talk, April 2007, and a Pi Math Club Talk, Sept. 28, 2007.
- "Geometry and Soap Bubbles," Pi Mu Epsilon, IPFW chapter, Spring 2006 induction.
- "Parabolas in Space," PI Math Club Talk, Jan. 25, 2006.
- "Geometry and Soap Bubbles," Undergraduate Seminar, St. Louis University, Nov. 16, 2005.
- "Visualizing surfaces in complex 2-space," Colloquium, Calvin College, Sept. 29, 2005.
- "Geometry and Soap Bubbles," Undergraduate Pizza Seminar, University of Western Ontario, Sept. 20, 2005.
- "Geometry and Soap Bubbles," at the
**2005 Dinner for Mathematical Sciences Alumni**, March 19, 2005. - "Packing Ellipsoids," a PI Math Club talk, Oct. 27, 2004.
- "Geometry and Soap Bubbles," in the "Lunch with a Scientist" presentation series at Science Central, May 8, 2004.
- "Geometry and Soap Bubbles," a PI Math Club talk, Feb. 16, 2004.
- "Classifying Conics: Square, Eccentric, or Degenerate," a PI Math Club talk, Sept. 16, 2002. Photo.
- "Projective Geometry and Computer Graphics," at Lawrence University, March 7, and at Oberlin College, March 15, and the IPFW PI Math Club, March 30, 2001.

- A. Coffman*, Y. Pan, and Y. Zhang,
*Continuous solutions of nonlinear Cauchy-Riemann equations and pseudoholomorphic curves in normal coordinates*,**Abstracts of Papers Presented to the AMS**(2)**36**(2015), p. 671. - A. Coffman*,
*Green's Theorem revisited*, Electronic Newsletter of the Indiana Section of the MAA, Fall 2014. - A. Coffman*,
*Real linear maps preserving some complex subspaces*,**Abstracts of Papers Presented to the AMS**(1)**35**(2014), p. 100. - A. Coffman*,
*Real linear maps preserving some complex subspaces*, Electronic Newsletter of the Indiana Section of the MAA, Fall 2013. - A. Coffman*,
*Rational functions on real or complex weighted projective spaces*,**Abstracts of Papers Presented to the AMS**(3)**34**(2013), p. 865. - A. Coffman*,
*Generalizing Eves' Theorem*, Electronic Newsletter of the Indiana Section of the MAA, Spring 2012. - A. Coffman* and Y. Pan,
*Counterexamples to upper semicontinuity of the Kobayashi-Royden pseudonorm for rough almost complex structures*,**Abstracts of Papers Presented to the AMS**(2)**31**(2010), p. 416. - A. Coffman* and Y. Pan,
*Glaeser's inequality on an interval*, Electronic Newsletter of the Indiana Section of the MAA, Spring 2010. - A. Coffman* and Y. Pan,
*Differential equations with no small solutions*, Electronic Newsletter of the Indiana Section of the MAA, Fall 2009.- As of Spring 2009, I am also volunteering as Editor of the Abstracts column of the Indiana MAA Newsletter.

- A. Coffman*,
*CR singularities of real 4-manifolds in***C**^{3},**Abstracts of Papers Presented to the AMS**(2)**30**(2009), p. 436. - A. Coffman*,
*Unfolding CR singularities of real 4-manifolds in***C**^{5},**Abstracts of Papers Presented to the AMS**(2)**27**(2006), p. 409. - A. Coffman*,
*Visualizing real surfaces in the complex projective plane*, Spring 2005 Newsletter of the Indiana Section of the MAA. - A. Coffman*,
*CR singularities of real threefolds in***C**^{4},**Abstracts of Papers Presented to the AMS**(3)**25**(2004), p. 459. - A. Coffman* and M. Frantz,
*Möbius transformations and ellipses*, Spring 2003 Newsletter of the Indiana Section of the MAA. - A. Coffman, D. Legg, and Y. Pan*,
*A series condition for harmonic extension*, Abstracts of Short Communications and Poster Sessions, International Congress of Mathematicians, Beijing 2002 (Higher Education Press, Beijing, 2002). - A. Coffman*,
*Complex projections of real Veronese varieties*,**Abstracts of Papers Presented to the AMS**(3)**22**(2001), p. 466.

- My Papers and Notes page for some lecture notes,
- My Conference Photos page,
- The IPFW Math Seminars and Events page for a record of my on-campus talks.
- The OPUS database of IPFW faculty presentations and publications.