Full Professor I, Mathematics Department, De La Salle University (DLSU), Manila
Association
Editorial Board, Matimyas Matematika, Member
Southeast Asian Mathematical Society, Member
Philippine-American Academy of Science and Engineering, Member
Mathematical Society of the Philippines, Member
National Research Council of the Philippines, Member
Honor Society of Phi Kappa Phi, UP Chapter, Member
Employment
De La Salle University, Associate Professor, 1993 Je-1999 S
De La Salle University, Assistant Professor, 1989 My-1993 Je
De La Salle University, Instructor, 1985 My-1989 My
Philippine Science High School, High School Math Teacher, 1981 Je-1985 My
Philippine Science High School, Coordinator, 1983-1985
De La Salle University, Chairman, 1993-1995
Award
Research Visitor, Department of Mathematics, University of Wisconsin-Madison, Madison USA, 2005 Ap 23- My 7
Research Faculty, De La Salle University, 2002 Je-2003 My
Mathematical Sciences Division , National Research Council of the Philipinnes, 2001
St. Miguel Febres de Cordero Research Award, De La Salle University, 2001 Je-2002 My
Ellen Francisco Fajardo Professorial Chair in Mathematics Education, De La Salle University, 2000 Je
University Fellow, De La Salle University, 2000 Je
Research Faculty, De La Salle University, 1999 Je- 2000 My
Honorary Fellow, University of Wisconsin-Madison, Madison USA, 1996 S - 1997 Ag
Japan Society for the Promotion of Science and Department of Science, Kyushu University and Kyoto University, 1995 N 28 ¬D 7
Japan Society for the Promotion of Science and Department of Science, Osaka Kyoiku University, 1993 O 17-N 30
Study Visitor, International Development Program of Australian Universities and Colleges, University of Adelaide, 1992 Je 6 -S 5
Ph.D. Fellow in Mathematics, University of the Philippines-Ateneo de Manila University, De La Salle University Consortium, , 1986 ¬1991
Credit Earning Training Visitor, University of Western Australia, 1990 Mr 15 -D 15
Teaching Chair Award in Mathematics, Philippine Science High School Foundation, Inc, 1982-1985
Outstanding Teacher in Mathematics of the Philippine Science High School, , National Science and Technology Authority, 1984 Jl
Presidential Award for Academic Excellence, National Science and Technology Authority, 1981 Jl
Undergraduate Scholarship Award, National Science Development Board-Philippine Normal College , 1977 - 1981
Vidal Tan Award in Mathematics, Philippine Normal College, 1981 Mr
Magna cum laude, Philippine Normal College, 1981 Mr
Papers Presented
The Tetrahedron Algebra and the Hamming Association Schemes, 27th Annual PAASE Meeting and Symposium, Century Park Hotel, Manila
An Action of the Tetrahedron Algebra on the Standard Module of the Hamming Graph, Conference in Algebra and Combinatorics, Ateneo de Manila University, Loyola Heights, Quezon City, Philippines
The Pseudo Primitive Idempotents of Distance Regular Graphs, Asian Mathematical Conference, National University of Singapore, Singapore
A Characterization of Q Polynomial Distance Regular Graphs, Com M ac Conference on Association Schemes, Codes and Design, Pusan National University, Busan, Korea
The Pseudo Cosine Sequences of a distance regular graph, Second East Asian Conference on Algebra and Combinatorics: An International Conference of Kyushu University
Preliminary Report on the Pseudo Cosine Sequences of a Distance Regular Graph, 980th American Mathematical Society Meeting University of Wisconsin Madison, Madison U.S.A.
On the Multiplicities of the Premitive Idempotents of a Q Polynomial Distance Regular Graph, International Mathematics Conference
Some Inequalities in a Tight Distance Regular Graph and Related Results, Third Asian Mathematical Conference, University of the Philippines, Quezon, City
An Inequality in Character Algebras, Com M ac Conference on Association Schemes, Codes and designs
An Inequality on the Cosines of a Tight Distance Regular Graph, Geometric and Algebraic Combinatorics Conference, Booshord, Oisterwijk
Q polynomial Structures in Tight Distance Regular Graph, Conference in Algebra, Ateneo de Manila University, Philippines
The Premitive Idempotents of Tight Graphs, Groups and Combinatorics Conference, Research Institute of Mathematical Sciences, Kyoto University, Kyoto, Japan
On Tight Graphs, Distance Regular Graphs, Atelier Workshop, Centre de Recherches Mathematiques, Montreal, Quebec, Canada
Towards Classifying Derived Conics in Hall Planes, Algebraic Combinatorics, Kyushu University, Fukuoka, Japan
Images of Conics Under Derivation, 18th Australasian Conference on Combinatorial Mathematics and Combinatorial Computing, The University of Western Australia and Curtin University
Hyperovals in Hall Planes, University of the Philippines and Ateneo de Manila University, Quezon City
Ranking the Officials of the Games of the generals Using the Perron Frobenius Theorem, MSPNCR Lecture Series, University of Santo Tomas, Manila
The Pseudo Primitive Idempotents of a Distance Regular Graph, Combinatorics Seminar, Department of Mathematics, University of Wisconsin Madison, Madison, USA
On the Multiplicities of the Primitive Idempotents of a Q polynomial Distance Regular Graph, Combinatorics Seminar Department of Mathematics University of the Wisconsin, Madison U.S.A
Basic Proof Technique in Mathematics for NonMath Majors, Mathematics Training Program for the Faculty of the College of Business and Rconomics, De La Salle University
A New In equality for Tight Distance Regular Graph, Mathematical Society of the Philippines Annual Convention, De La Salle University of the Philippines, Diliman Quezon City
Tight Distance Regular Graphs: Their Primitive Idempotents and the Qpolynomial Property, National Research Council Division of Mathematical Sciences Annual Symposium, University of the Philippines Diliman, Quezon City
Krein Parameters of Tight Graphs, Mini Conference on Algebraic Combinatorics, Department of Mathematics, University of Wisconsin, Madison, U.S.A
Tight Graphs and the Q Polynomial Property, Combinatorics Seminar, Department of Mathematics, University of Wisconsin, U.S.A.
Recent Result on Tight Distance Regular Graphs , Noetherian Ring Seminar, Department of Mathematics, University of Wisconsin-Madison USA
Towards Classifying Derived Conics in Hall Planes, Geometry Seminar, Osaka University, Osaka, Japan
On the Nearly Triply Regular Designs , Combinatorics Seminar, Osaka Kyoiku University, Osaka, Japan
Towards Classifying Derived Conics in Hall Planes, Combinatorics Seminar, Osaka Kyoiku University,Osaka, Japan
Inherited Arcs and Ovals in Hall Planes of Odd Order, Algebra Workshop, University of Western Australia, Perth, Australia
Education
University of the Philippines (UP), Diliman, Quezon City Philippines, Doctor of Philosophy in Mathematics, 1991
UP, Diliman, Quezon City Philippines, Master of Science in Mathematics, 1988
Philippine Normal University, Manila Philippines, Bachelor of Science in Mathematics for Teachers, 1981
Publication
O'Keefe, C.M. Pascasio, A.A., (1998) On complete 14-arcs in semifield planes of order 16
The Manila Journal of Science Volume 1, No. (2):
Pascasio, A.A., (2008) A characterization of Q polynomial distance regular graphs
Discrete Mathematics
Pascasio, A.A., (2006) The pseudo?cosine sequences of a distance regular graph, joint work with Paul Terwilliger
Linear Algebra and its Applications
Pascasio, A.A., (2003) An inequality in character algebras
Discrete Mathematics
Pascasio, A.A., (2002) On the multiplicities of the primitive idempotents of a Q polynomial distance regular graph
European Journal of Combinatorics
Pascasio, A.A., (2001) Tight distance regular graphs and the Q polynomial property
Graphs and Combinatorics
Pascasio, A.A., (2001) An inequality on the cosines of a tight distance regular graph
Linear Algebra and its Applications
Pascasio, A.A., (1999) Tight graphs and their primitive idempotents
Journal of Algebraic Combinatorics
Pascasio, A.A., Praeger, C., Raposa, B.P., (1996) On the characterization of AG(n, q) by its parameters as a nearly triply regular design
Designs, Codes and Cryptography
OKeefe, C.M., , (1996) Images of conics under derivation
Discrete Mathematics
OKeefe, C.M., Penttila, T., , (1992) Hyperovals in hall planes
European Journal of Combinatorics
Trainings
A Characterization of Q-Polynomial Distance-Regular Graphs, 2004 Jl 19-23, Pusan National University, Pusan, Korea
An International Conference of The Pseudo Cosine Sequences of a Distance?Regular Graph), 2003 N 15-22, Kyushu University 21st Century Center of Excellence Program, Fukuoka, Japan
980th American Mathematical Society Meeting, 2002 O 12-13, University of Wisconsin Madison, Madison USA
International Mathematics Conference, 2001 F 22-24, De La Salle University College of St. Benilde, Manila, Philippines
Some Inequalities in a Tight Distance - Regular Graph and Related Results, 2000 O 23-27, University of the Philippines, Quezon City
Com2Mac Conf erence on Association Schemes, Codes and Designs, 2000 Jl 3-7, Graduate School for Information Technology, POSTECH, Pohang, Korea
Geometric and Algebraic Combinatorics Conference, 1999 Ag 15-20, Boshoord, Oister¬wijk, The Netherlands
An Inequality on the Cosines of a Tight Distance Regular Graph, 1998 N 30-D 4, Ateneo De Manila University
The Primitive Idempotents of Tight Graphs, 1996 D 11-13, Kyoto University, Kyoto Japan
On Tight Graphs, 1996 D 16-20, Kyoto University, Kyoto Japan
The Primitive Idempotents of Tight Graphs, 1996 N 18-22, Montreal, Quebec Canada
Towards Classifying Derived Conics in Hall Planes, 1993 N 22-26, Kyushu University, Fukuoka Japan
Images of Conics Under Derivation, 1992 Jl 6-10, University of Western Australia and Curtin University of Technology, Perth, Australia
Hyperovals in Hall Planes, 1991 O 21-25, University of the Philippines and Ateneo de Manila University, Quezon City, Philippines
Ranking the Officials of the Games of the Generals Using the Perron-Frobenius Theorem, 2007 Ag 24, University of Santo Tomas, Manila
The Tetrahedron Algebra and the Egawa Graphs, 2007 My 18-19, Bohol Tropics Resort, Tagbilaran City
The Pseudo Primitive Idempotents of a Distance-Regular Graph, 2005 My 2, University of Wisconsin Madison, Madison, USA
Basic Proof Techniques in Mathematics for Non Math Majors, 2004 Jl-D, De La Salle University, Manila Philippines
On the Multiplicities of the Primitive Idempotents of a Q-Polynomial Distance-Regular Graph, 2002 S 24, University of Wisconsin Madison, Madison, USA
A New Inequality for Tight Distance Regular Graphs, 1998 My 31, De La Salle University, Manila, Philippines
Tight Distance-Regular Graphs : Their Primitive Idempotents and the Q-Polynomial Property, 1997 D 13, University of the Philippines, Diliman, Quezon City, Philippines
Krein Parameters of Tight Graphs, 1997 Ag 28, University of Wisconsin, Madison, Madison, USA
Tight Graphs and the Q-Polynomial Property, 1997 My 5, University of Wisconsin, Madison, Madison, USA
Recent Results on Tight Distance-Regular Graphs, 1997 F 13, University of Wisconsin, Madison, Madison, USA
Towards Classifying Derived Conics in Hall Planes, 1993 N 15, Osaka University, Osaka Japan
On Nearly Triply Regular Designs, 1993 N 5, Osaka-Kyoiku University, Osaka, Japan
Inherited Arcs and Ovals in Hall Planes of Odd Order, 1990 N 28, University of Western Australia, Perth Australia