De Las Peñas, Ma. Louise Antonette N.
Status:
Full Time
Administrative Position:
Associate Dean for Research and Creative Work, Loyola Schools
Email:
Contact No.:
(+632) 4266001 local 568183
Biography:
Phd Mathematics, MS Mathematics, BS Mathematics
University of the Philippines, Diliman, Quezon City, Philippines
PostDoctoral Studies, Sophia University, Tokyo, Japan
Research:
Group Theory, Mathematical Crystallography, Discrete Geometry, Technology in
Mathematics Education
Selected Professional Associations, Awards and Recognition:
Awards

2018 Philippine National Academy of Science and Technology Award for Best
Scientific Paper (Mathematical and Anthropological Analysis of Northern Luzon
Funerary Textile) 
2014 Philippine Commission on Higher Education (CHED) Republica National
Award for Outstanding Research (On Subgroups of Hyperbolic Coxeter Tetrahedral
Groups) 
2014 Philippine National Academy of Science and Technology Award for Best
Scientific Paper (On Bravais Colorings Associated with Periodic and NonPeriodic
Crystals), 
2010 National Research Council of the Philippines (NRCP) Outstanding
Achievement Award in Research in the Mathematical Sciences 
2009 National Research Council of the Philippines (NRCP) Award for Best Scientific
Poster (On Bravais Colorings with Quasicrystallographic Symmetries) 
2007 Philippine National Academy of Science and Technology Award for Best
Scientific Paper (On Vertex Colorings of Archimedean Tilings with Applications in
Molecular Symmetry)
Editorship
 Column Editor, Mathematical Tourist, The Mathematical Intelligencer https://www.springer.com/mathematics/journal/283?detailsPage=editorialBoard

Editor, Electronic Journal of Mathematics and Technology
https://php.radford.edu/~ejmt/Editors.php
Current Committees (not including those in Ateneo de Manila University)

Commission Member, International Union of Crystallography (IUCr) Commission on
Mathematical and Theoretical Crystallography
https://www.iucr.org/iucr/commissions/mathematicalandtheoreticalcryst... 
International Program Committee, International Union of Crystallography (IUCr)
2020 25 th IUCr Congress
http://www.iucr25.org/ipc.htm 
International Program Committee, Asian Technology Conference in Mathematics
(ATCM)
http://atcm.mathandtech.org/ipc.htm
Publications
Journal Articles in Mathematics
1. Primitive Substitution Tilings with Rotational Symmetries (with A.L.Sayawen and
D.Frettlöh). Acta Cryst A 74 (2018), 388398.
2. Hyperbolic Isocoronal Tilings (with E. Taganap). Journal of Mathematics and the Arts
12:23 (2018), 96110.
3. Crystallographic Patterns in Philippine Indigenous Textile (with A.Garciano,
D.M.Verzosa and E.Taganap). Journal of Applied Crystallography 51 (2018), 456469.
4. String CGroups of Order 1024 (with Y.Gomi and M. Loyola). Contributions to Discrete
Mathematics 131 (2018), 122.
5. Substitution Tilings with Dense Tile Orientations and nfold Rotational Symmetry (with
D. Frettlöh and A.L. Sayawen). Indagationes Mathematicae 28 (2017), 120131.
6. Mathematical and Anthropological Analysis of Northern Luzon Funerary Textile (with
A. SalvadorAmores). Philippine Journal of Science 451 (2016), 87101.
7. The Lamplighter Group L n (h) (with M.C. Mamaril). AIP Conference Proceedings: 7 th
SEAMSUGM International Conference on Mathematics and its Applications 2015 1707,
020011 (2016); doi: 10.1063/1.4940812
8. Color Symmetry Approach to the Construction of Crystallographic Flat Origami (with
E.Taganap and T.Rapanut), Origami 6 (eds. P.WangIverson, R.Lang, etal), American
Mathematical Society (2015), 1120.
9. Symmetry Groups Associated with Tilings on a Flat Torus (with M.Loyola, G.Estrada
and E.B.Santoso). Acta Cryst A 71 (2015), 99110.
10. On Color Fixing Groups Associated with Colored Symmetrical Tilings (with A.L.Say
awen and T.Rapanut). AIP Conference Proceedings: International Conference on
Mathematics, Engineering and Industrial Applications 2014 1660, 050012 (2015); doi:
10.1063/1.4915645
11. Weaving Mat(h)s (with A. Garciano and D.Verzosa). The Mathematical Intelligencer
36(4) (2014), 3646.
12. Color Symmetry in the Hand Woven Mats of the Jama Mapun (with A.Garciano and
D.Verzosa). Bridges Seoul: Mathematics, Music, Art, Architecture, Culture (eds.
G.Greenfield, G.Hart, and R. Sarhangi), Tessellations Publishing, Arizona (2014), 357
360.
13. Crystallographic Flat Origami with Three Flat Foldability Types of the Generating Unit
(with E.Taganap and T.Rapanut). AIP Conference Proceedings: International
Conference for Mathematical Sciences 2014, 1602, 662 (2014); doi: 10.1063/1.4882556
14. A Quotient Space Approach to Model Nanotori and Determine their Symmetry Groups
(with M. Loyola, E.B.Santoso and G.Estrada). AIP Conference Proceedings:
International Conference for Mathematical Sciences 2014, 1602, 620 (2014); doi:
10.1063/1.4882549
15. Symmetry Groups of Single Wall Nanotubes (with M. Loyola, A.Basilio and
E.B.Santoso). Acta Cryst A 70 (2014), 1223.
16. On Subgroups of Crystallographic Coxeter Groups (with E. Provido and R.Felix). Acta
Cryst. A 69 (2013), 445451.
17. Perfect Colourings of Cyclotomic Integers (with D. Frettlöh and E.Bugarin). Geometria
Dedicata 162 (2013), 271282.
18. Colorings of Single Wall Carbon Nanotubes (with M. Loyola and A. Basilio). Zeitschrift
für Kristallographie 227 (2012), 672680.
19. Weaving Symmetry of the Philippine Northern Kankanaey (with N.Baylas IV and
T.Rapanut). Bridges Towson: Mathematics, Music, Art, Architecture and Culture (eds. R.
Bosch, D. Mckenna and R. Sarhangi), Tessellations Publishing, Arizona (2012), 267274.
20. On the Subgroups of the Triangle Group (with E. Provido and M.Decena). Advances in
Algebraic Structures (eds. W. Hemakul et al), World Scientific Co. Ltd (2012), 478495.
21. On Bravais Colorings Associated with Periodic and NonPeriodic Crystals (with
E.Bugarin). Phil. Journal of Science 1401 (2011), 8997.
22. Colourings of Cyclotomic Integers with Class Number One (with E. Bugarin and D.
Frettlöh). Philosophical Magazine 91:1921 (2011), 26902699.
23. SemiPerfect Colourings of Hyperbolic Tilings (with B. Gozo, G. Laigo and R.Felix).
Philosophical Magazine 91:1921 (2011), 27002708.
24. On Subgroups of Hyperbolic Coxeter Tetrahedral Groups (with G. Laigo and R. Felix).
Zeitschrift für Kristallographie 225 (2010), 313338.
25. On Torsion Free Subgroups of p32 and Related Colored Tilings (with E. Provido and R.
Felix). Bridges Pécs: Mathematics, Music, Art and Architecture (eds. G. Hart and R.
Sarhangi), Tessellations Publishing, Arizona (2010), 410419.
26. Constructing Colored Honeycombs (with G. Laigo and R. Felix). Bridges Banff:
Mathematics, Music, Art and Culture (eds. C.Kaplan and R. Sarhangi), Tarquin Books,
Hertfordshire (2009), 131138.
27. On Orbifolds Associated with Subgroups of Triangle Groups of Index at most Four (with
C. Decena). Loyola Schools Review: Science and Engineering 8 (2009), 6384.
28. On Color Groups of Bravais Colorings of Planar Modules with Quasicrystallographic
Symmetries (with E. Bugarin, I. Evidente, R. Felix and D. Frettlöh). Zeitschrift für
Kristallographie 223: 1112 (2008), 785790.
29. Enumeration of Index 3 and 4 Subgroups of Hyperbolic Triangle Symmetry Groups (with
C.Decena and R. Felix). Zeitschrift für Kristallographie 223 10 (2008), 543551.
30. Coxeter Groups in Colored Tilings and Patterns (with G. Laigo and I. Puzon). Bridges
Leeuwarden: Mathematical Connections in Art, Music and Science (eds. R. Sarhangi and
C. Sèguin), Tarquin Publications, Hertfordshire (2008), 311318.
31. Color Groups Associated with Square and Hexagonal Lattices (with R. Felix). Zeitschrift
für Kristallographie 222 (2007), 505512.
32. On Index 2 Subgroups of Hyperbolic Symmetry Groups (with E. Provido and R. Felix).
Zeitschrift für Kristallographie 222 (2007), 443448.
33. Hyperbolic Semiregular Tilings and their Symmetry Properties (with G. Laigo and E.
Provido). Bridges Donostia: Mathematical Connections in Art, Music and Science (eds.
R. Sarhangi and J. Barallo), Tarquin Publications, Hertfordshire (2007), 361368.
34. Determining Symmetry Groups of Semiregular Tilings (with E. Provido). Loyola
Schools Review: Science & Engineering 6 (2007), 119.
35. Colorings of Hyperbolic Plane Crystallographic Patterns (with G. Laigo and R. Felix).
Zeitschrift für Kristallographie 221 (2006), 665672.
36. An Approach in Coloring Semiregular Tilings on the Hyperbolic Plane (with G. Laigo
and R. Felix). Renaissance Banff: Mathematical Connections in Art, Music and Science
(eds. R. Moody and R. Sarhangi), Central Plain Book Manufacturing Co, Winfield,
Kansas (2005), 313320.
37. On Vertex Colorings of Archimedean Tilings with Applications in Molecular Symmetry
(with A. Basilio). Loyola Schools Review; Science and Engineering 3 (2004), 125137.
38. Colored Patterns and the Subgroups of their Symmetries effecting Color Permutations
(with A. Paras). Zeitschrift für Kristallographie 218 (2003), 720724.
39. On Nonperfect Colorings Arising from Index 4 Subgroups (with R. Felix). Southeast
Asian Bulletin of Mathematics 27 (2003), 603613.
40. On the Construction of Plane Crystallographic Patterns. Bridges: Mathematical
Connections in Art, Music and Science (eds. R Sarhangi and S. Jablan), Central Plain
Book Manufacturing Co, Winfield, Kansas (2001), 181191.
41. A Framework for Coloring Symmetrical Patterns (with R. Felix and V.Quilinguin).
Algebras and Combinatorics: An International Congress ICAC ’97 Hongkong (eds. E.
Taft and Z. Wan), Springer, Singapore (1999), 159175.
42. Analysis of Colored Symmetrical Patterns (with R. Felix and V. Quilinguin). Algebraic
Combinatorics: Kyoto University Research Institute for Mathematical Sciences (RIMS)
Kokyuroku Series 1109 (1999),152162.
43. Colorings of Patterns where the Isometries the Permuting the Colors form a Subgroup of
index at most 3 in the Symmetry Group of the Patterns (with R. Felix). Matimyas
Matematika 202 (1997), 14.
44. Non Perfect Colorings of Symmetrical Patterns with Hexagonal Symmetry Group.
Doctoral Dissertation, University of the Philippines, Quezon City, Philippines, 1996.
Journal Articles in Mathematics Education and Technology
45. Appbased Scaffolds for Writing Two Column Proofs (with D.Verzosa, A. Aberin and
L.P.D.Garces). International Journal of Mathematical Education in Science and
Technology (2018) DOI:10.1080/0020739X.2018.1500654
46. Discovering New Tessellations Using Dynamic Geometry Software (with E. Taganap).
Proceedings of the 22nd Asian Technology Conference in Mathematics (eds. W.C. Yang,
D. Meade and Y. Yuan), Mathematics and Technology, LLC, Blacksburg VA, USA
(2017), 153162.
47. Using Dynamic Tools to Develop an Understanding of the Fundamental Ideas of
Calculus (with D. Bautista and A. F. Guzon). International Journal of Mathematical
Education in Science and Technology 452 (2014), 190199.
48. Color Models as Tools in Teaching Mathematics. Proceedings. of the Seventeeth Asian
Technology Conference in Mathematics (eds. W.C. Yang, M. Majewski, T. D. Alwis and
K. Kairiree). Mathematics and Technology, LLC, Blacksburg VA, USA (2012), 7483.
49. Tilings, Patterns and Technology (with A. Guzon). Proceedings of the 16th Asian
Technology Conference in Mathematics (eds. W.C.Yang, M. Majewski, T. D. Alwis and
E.Karakirk). Mathematics and Technology, LLC, Blacksburg VA, USA (2011), 2336.
50. The Emerging Role of Geogebra in the Philippines (with D. Bautista). Modelcentered
Learning: Pathways to Mathematical Understanding using Geogebra (Modeling and
Simulation for Learning and Instruction) (eds. L. Bu and R. Schoen). Sense Publishers,
Boston, MA (2011), 217230.
51. Understanding and Developing Proofs with the Aid of Technology (with D. Bautista).
Electronic Journal of Mathematics and Technology 22 (2008).
52. On Maximizing Technology Resources and their Benefits in Teaching and Learning
Mathematics (with D. Bautista). New Technologies in the Teaching and Learning of
Mathematics TSG 22: Proceedings of the 11th International Congress in Mathematics
Education, Monterrey, Mexico (2008).
53. On Proof Techniques and Technology (with D. Bautista). Proceedings of the Twelfth
Asian Technology Conference in Mathematics (eds. W.C. Yang, T.D. Alwis and J.
Chuan). Mathematics and Technology, LLC, Blacksburg VA, USA (2007), 4049.
54. TechnologyBased Manipulatives (with D. Bautista). Electronic Journal of Mathematics
and Technology 22, (2007). https://php.radford.edu/~ejmt/ContentIndex.php
55. Studying NonEuclidean Tilings and their Groups with the Aid of Technology (with G.
Laigo and E. Provido). Proceedings of the Eleventh Asian Technology Conference in
Mathematics (eds. S.C. Chu, S.H.Hou and W.C. Yang), Mathematics and Technology,
LLC, Blacksburg VA, USA (2006), 317326.
56. Strategies in Maximizing the Use of Existing Technology in Philippine Schools (with D.
Bautista). Proceedings of the Eleventh Asian Technology Conference in Mathematics
(eds. S.C. Chu, S.H.Hou and W.C. Yang), Mathematics and Technology, LLC,
Blacksburg VA, USA (2006), 308316.
57. The Use and Influence of Technology in Mathematics Education (with W. C. Yang).
Proceedings. of the Tenth Asian Technology Conference in Mathematics (eds. S.C. Chu,
W.C. Yang and H. Lew), Mathematics and Technology, LLC, Blacksburg VA, USA
(2005), 297306.
58. Inspiring Students to Study and Learn Mathematics with the aid of Technology (with W.
C. Yang). Proceedings of the Ninth Asian Technology Conference in Mathematics (eds.
S.C. Chu, W.C. Yang and T.D. Alwis), Mathematics and Technology, LLC, Blacksburg
VA, USA (2004), 7887.
59. Handheld Technology and Mathematics Education. Intersection: Official Journal of the
Phil. Council of Mathematics Teachers Educators (Mathted) 15 (2002), 2328.
60. Studying Group Theory with the Aid of Technology. Intersection, Official Journal of the
Phil. Council of Mathematics Teachers Educators(Mathted) 13 (2001), 1830.
61. Doing Group Theory using Color Models. Proceedings of Conference on Model 2001
Workshop and Conference on Modeling, Simulation and Scientific Computing,
Philippines (2001).
62. An Algorithm to Determine Nonperfect Colorings that arise from Plane Crystallographic
Groups. Proceedings of the Fourth Asian Technology Conference in Mathematics (eds.
S.C. Chu, W.C.Yang. D. Wang and G. Fitzgerald), Mathematics and Technology, LLC,
Blacksburg VA, USA (1999), 219230.
Video Presentation and Catalogue
Mathematical Symmetries in Philippine Indigenous Textile, Video and catalogue for museum
exhibit “Woven Universes: Math, Method, Meaning and Magic in Philippine Indigenous
Textiles”, Yuchengco Museum, December 2014 February 2015.