So Okada
 Birth: Recife Brazil.
 Email: so.okada at gmail.com.
 Languages: Japanese, English, and Portuguese.
Academic Track:

Director of Library and Information Network Center,
Apr 2022 current,
Chief of Mathematics Division,
Apr 2016  Mar 2018, Apr 2019  current,
Associate Professor,
Apr 2015  current,
Assistant Professor,
Oct 2012  Mar 2015,
National Instiute of Technology, Oyama College,
Oyama Japan.

Facultylevel Academic Visitor
, Apr 2018  Mar 2019,
Departamento de Matemática,
Universidade Federal de Pernambuco
, Recife Brazil.

Researcher (Global Center of Excellence),
Apr 2011  Sep 2012,
Programspecific Researcher (Global Center of Excellence),
May 2009  Mar 2011,
Research Institute for
Mathematical Sciences,
Kyoto University
, Kyoto Japan.

Fulltime Visiting Research Fellow,
Nov  Dec 2010,
Nov  Dec 2009,
Nov 2008,
Dec 2007  Feb 2008,
Institut des Hautes Études
Scientifiques,
BuressurYvette France.

Fulltime Research Associate,
May 2008  Apr 2009,
Mathematical
Sciences Institute,
Australian National University,
Canberra Australia.

Fulltime Research Fellow (postdoc visiting
researcher),
Sep 2006  Oct 2007,
Max Planck Institute
for Mathematics,
Bonn Germany.

PhD,
Sep 2006,
University of Massachusetts Amherst,
Amherst United States, Advisor:
Professor Ivan Mirković.
 Short visits:
 Nov 29  Dec 1 2017, Mar 2226 2018,
Research Institute of
Mathemaical Sciences
visiting
Prof. A. N. Kirillov
,
Kyoto.
 Mar 23 2016,
Departamento de Matemática,
Universidade Federal de Pernambuco,
Recife.
 Nov 24  Nov 28 2008,
College de France
visiting
Prof. Don Zagier,
Paris.
 Aug 11  Aug 15 2008,
Max Planck Institute
for Mathematics,
Bonn.
 Nov 1  Nov 17
2007,
University of Texas
Austin,
Austin.
 Mar 11  Mar 31
2008,
Institute of Advanced
Study,
Princeton.
 Jun 29  Jul 6 2008, Feb 24  Feb 29
2008,
Centre de Recerca
Mathematica,
Barcelona.
Research Interests:
logconcavity; stability conditions.
Selected Research Articles (Google Scholar):

Mergedlogconcavity of rational functions, almost strictly unimodal sequences, and phase transitions of ideal bosonfermion gases,
arXiv:2003.02112
.

BCOV rings on elliptic curves and eta function,
arXiv:1601.08029
.

On Euler characteristics for large Kronecker quivers,
C. R. Acad. Sci. Paris, Ser. I (2012), Vol. 350, Issues 5, March
2012, Pages 273276.

A pari/gp program
for
Poincare polynomials of mKronecker quiver modulus by Reineke's formula. Command: poincare_reineke(m,a,b,t).

A pari/gp program
for the above
by ManschotPiolineSen formula.
Command: poincare_mps(m,a,b,t).

Homological mirror symmetry for Fermat polynomials,
arXiv:0910.2014v3
.

Joyce invariants for K3 surfaces and mock theta functions,
with
Anton
Mellit,
Commun. Number Theory Phys. (2009) Vol 3 Num 4 p.655676.

On stability manifolds of CalabiYau surfaces,
International Mathematics Research Notices (2006) Vol. 2006 : article 58743, 16 pages, 2006.

Stability manifold of $\mathbb{P}^1$,
J. Algebraic Geom. 15 (2006), 487505.
Awards/Grants:

Award in Education,
National
Instiute of Technology, Oyama College, 2016.

Mathematical Sciences Sponsorship Fund,
Elsevier, 2015.

Grant for Fundamental Education and Research,
National Instiute of Technology, Oyama College, Aug 2013  Apr 2014.

JSPS GrantinAid for Young Scientists (B) (23740012),
Apr 2011  Mar 2013.

JSPS GrantinAid for Young Scientists (Startup) (21840030),
Oct 2009  Mar 2011.
Research Presentations:

AdS Seminar,
Oct 28 2021,
Yau Mathematical Science Center,
Tsinghua University.

International Workshop Ppositivity
in Matroid Theory and Related Topics,
October 5 2021,
Research Institute of Mathemaical Sciences, Kyoto University.

Colloquium,
Jun 7 2018, Departamento de Matemática,
Universidade Federal de Pernambuco, Recife.

Number Theory Workshop at Waseda University,
Mar 15 2018, Waseda University, Tokyo.

Conference: Mirror symmetry and applications,
Dec 15 2017, Steklov Mathematical Institute, Moscow.

2017 MSJ Spring Meeting, Mar 26 2017, Tokyo
Metropolitan University.

Noda Algebraic Geometry Symposium 2016,
Mar 14 2016, Tokyo Science University.

3rd Yokohama Workshop, Nov 19 2014, Yokohama National University.

2014 MSJ Spring Meeting, Mar 15 2014, Gakushuin University.

Colloquium, Mar 27 2013, Utsunomiya University.

RIMS Kyoto Representation Theory Seminar, Apr 26 2013, Research Institute of Mathemaical Sciences, Kyoto University.

The 3rd GCOE Workshop for Young Mathematicians, Feb 20 2012, Kyoto University.

Differential Topology Seminar, Jan 26 2010, Kyoto University.
 Algebraic Geometry Seminar, Jan 15 2010, Kyoto University.

Mathematical Field Theory and Topology,
Feb 8 2013, Shinshu University.

2012 MSJ Autumn Meeting, Sep 20 2012,
Kyushu University.

School and Conference on Modular Forms and Mock
Modular Forms
and their Applications
in Arithmetic, Geometry and Physics, Mar 15 2011,
the Abdus Salam International Centre for Theoretical Physics,
Trieste.
 XIV International Conference on
Representations of Algebras, Aug 15 2010, National Olympics Memorial
Youth Center, Tokyo.
 Workshop
on Period Integrals and Motives, Feb 17
2010, University of Tokyo.
 Departmental Lecture, Oct 22 2009, Kinki University.
 Summer Seminar, Aug 2021 2009, Tokyo Metropolitan University, organized by Uehara.
 Algebra and Topology Seminar,
Apr 7 May 20 Jun 2009 Sep 9 Sep 23 2008, Australian National University.

Homotopy Structures in Geometry and Algebra; Derived Categories, Higher Categories, Jul 1 2008, Centre de Recerca
Mathematica.

Special Lecture, Mar 28 2008, Institute of Advanced Study.

Geometry Seminar, Nov 1 2007,
University of Texas Austin.

AMS Summer Research
Conference, Derived Categories in Mathematics and Physics,
Jun 18 2007,
Snowbird, Utah.
 Miniworkshop on Stability Conditions, Derived Categories, etc., Apr 28 2007, Max Planck Institute
for Mathematics.
 Seminar Algebraische Geometrie, Nov 9 2006, Max Planck Institute
for Mathematics.

Geometric
Representation Theory Conference, Mar 26 2005,
University of Arizona.
 Representation Theory Seminar,
Nov 15 and 22 2004, University of Massachusetts Amherst.
Others:

Here to here, a career talk,
The 3rd BrazilJapan Symposium,
Japanese Immigration 110
Years, Sep 17 2018, University Main Library,
Universidade Federal de Pernambuco, Recife Brazil.

Threemanifolds according to G. Perelman, an expository article,
with Rob
Kusner and Eli BeechHaven,
Sugaku
Seminar 42/10 (2003) 46 (in Japanese); also
UMass Amherst Department of Math&Stat Newsletter 18 (2003) 13.
Organizer Experiences:

Math Colloquium,
Oct 2013  current, National
Instiute of Technology, Oyama College.

Math Competion,
Jan 2013  Jan 2018 (paused),
National Instiute of Technology, Oyama College.

Stability Conditions
and Related Topics in Kyoto, Dec 17  19 2012,
Kyoto University.
 RIMS
Nakajima Seminar, Jan 18Feb 8 2011,
Research Institute of Mathemaical Sciences.

Working Seminar
for Stability Conditions and Related Topics at MPIM,
May 1Jun 15 2007, Max Planck Institute for Mathematics.
Professional Memberships:

Japan Mathematical Society,
Oct 2012  current.

American Mathematical Society,
Dec 2006  current.
Lecturing Experiences:

National Institute of Technology, Oyama College
 Fundamental
Mathematics Ia, 1MC Spring 2022, 1LRA Spring 2023
 Fundamental
Mathematics Ib, 1MC Fall 2022, 1LRA Fall 2023
 Fundamental
Mathematics II,
112345 2019
 Fundamental
Mathematics A, 11235 2016
Fall 1123 2016 Spring 1LR 2015
 Fundamental
Mathematics B, 1LR 2013 1A Fall 2012
 Linear Algebra I, 2C 2020
 Algebra and Geometry, 2M 2017 2A 2016 Spring 2DM Fall 2012
 Calculus Ia, 2LRA Spring 2020,
2LRA Spring 2021
 Calculus Ib, 2LRA Fall 2020
 Calculus, 2M 2019
2ALR 2017 2LR 2014 2D 2013
 Linear Algebra II, 3C 2021
 Linear Algebra, 3CDE 2014
 Calculus II, 3LRC 2022
 Analysis,
3CLR 2015 3CDE 2013 3E Fall 2012
 Applied Mathematics, 4A Fall 2012,
4A Spring 2023
 Probability and Statistics, 4DM Fall 2012
 Complex Analysis, S1
Spring 2019 2017 2016 2015 2014 2013
 Applied Analysis, S1 Fall 2020, Fall 2021, Fall 2022
 Graduation Research, 2015

Universidade Federal de Pernambuco

Geometria Algébrica (lecturing in Portuguese), Nov 26th 2018

University of Massachusetts Amherst
Community Activities:
Tools:

toXiv,
a python mastodon app for arXiv daily new submissions,
abstracts, crosslists, and replacements,
Mar 2022  current.

twXiv,
a python twitter app for arXiv daily new submissions,
abstracts, crosslists, and replacements,
Aug 2020  current.

mastodon arXiv bots
for all arXiv categories
cs.AI,
cs.AR, ..., an openscience practice,
Jan 2023  current.

twitter arXiv bots
for all math arXiv categories
Math.AC,
Math.AG, ...,
an openscience practice (study on these bots,
my comment),
Mar 2013  current.
 Feeds for
Upcoming conferences in algebraic geometry and
RIMS Workshops, 2010  2022 (feed43.com is dead in 2023).

noshow,
a simple attendence analyzer for Microsoft 365
teams meetings, Apr 2020  archived.
 Mimikakiedit BibTeX Mode,
Mar 2000.
 Mimikakiedit Tex Math Macros,
Feb 2000.
Short Bio: I was born in
Recife Brazil to Japanese parents. My father
worked on piscicultura at
the Universidade
Federal de Pernambuco, dispatched by
Japan International Cooperation
Agency. We left Recife for Tokyo when I was two and a half. I
obtained BA and MA at International
Christian University, studying representation theory and
combinatorics with
Professor Hiroshi
Suzuki. I first went back to
Recife Brazil in 2016 with my mother
(photos: 1
2
3
4
5).
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