Mohd Hafiz bin Mohd

Overview:

Dr Hafiz joined the School of Mathematical Sciences, USM, as a lecturer in 2016. He is a researcher working in the field of Mathematical Modelling. His research uses continuation and simulation methods to improve our predictions of species geographic distributions in nature. He is also interested in modelling the problems in engineering and other biological systems such as epidemiology and ecology. To address these problems, he employs deterministic models and stochastic individual-based models. He uses the techniques from differential equations, dynamical systems, numerical continuation and stochastic processes to develop mathematical and computational tools to answer a range of biologically inspired questions.

• Mathematical Modelling
• Mathematical Biology
• Numerical Continuation, Dynamical Systems and Bifurcation Theory
• Individual-Based Models in Ecology

Selected publications:

1) Unravelling the Myths of R0 in Controlling the Dynamics of COVID-19 Outbreak: A Modelling Perspective. Chaos, Solitons & Fractals 140 (2020), 109943 (Elsevier: Impact Factor 3.764).

2) Diversity in interaction strength promotes rich dynamical behaviours in a three-species ecological system. 2019 Applied Mathematics and Computation, 353: 243-253 (Elsevier: Impact Factor 3.472).

3) Effects of different dispersal patterns on the presence-absence of multiple species. 2018 Communications in Nonlinear Science and Numerical Simulation, 56: 115-130 (Elsevier: Impact Factor 4.115).

4) Bifurcations and chaos in a discrete SI epidemic model with fractional order. 2018 Advances in Difference Equations, 1: 44 (Springer: Impact Factor 1.066).

5) Dynamical analysis of a fractional-order Rosenzweig–MacArthur model incorporating a prey refuge. 2018 Chaos, Solitons & Fractals, 109: 1-13 (Elsevier: Impact Factor 3.764).

6) Effects of biotic interactions and dispersal on the presence-absence of multiple species. 2017 Chaos, Solitons & Fractals, 99: 185-194 (Elsevier: Impact Factor 3.764).

7) Effects of dispersal and stochasticity on the presence –absence of multiple species. 2016 Ecological Modelling, 342: 49-59 (Elsevier: Impact Factor 2.634).

Research Highlight: https://www.journals.elsevier.com/communications-in-nonlinear-science-and-numerical-simulation/highlighted-articles/finding-new-homes

Experience:

• COVID-19 Epidemiological Studies Special Team Member (National Task Force of MOSTI-MOH-MOHE)
• Internal and External Examiners for:
  - University of the Phillipines Baguio (UPB).
  - Universiti Tun Hussein Onn Malaysia (UTHM).
  - Universiti Sains Malaysia (USM).
• Chairperson for the Southeast Asian Mathematical Society (SEAMS) School 2018 on Dynamical Systems and Bifurcation Analysis (DySBA).
• Chairperson for Workshop on Complex Systems Modelling & Simulation 2019 (CoSMoS 2019): IoT & Big Data Integration
• Keynote Speaker for:
  - National Symposium on Mathematical Analysis and its Applications (SNAMA 2019), Jakarta, Indonesia (Mathematical Analysis Community in Indonesia).
• Invited Speaker for:
  - SEAMS School 2018 on DySBA, Penang, malaysia.
  - International Conference on Modeling for Water Resources Management (M4WARM2019), Hanoi, Vietnam.
  - Institute of Engineering Mathematics (UniMAP) Seminar Series, Perlis, Malaysia.
  - University of the Phillipines Baguio (UPB) Research Seminar, Baguio, Phillipines.
  - University of the East (UE) Manila Mathematics and Statistics Lecture Series.
• Editor for Springer-Nature Edited Volume (https://www.springer.com/gp/book/9789813298316)

• Reviewer for the following research journals:
  - Theoretical Ecology (Springer).
  - International Journal of Systems Science (Taylor & Francis).
  - Bulletin of the Malaysian Mathematical Sciences Society (Springer).
  - Chaos Solitons & Fractals (Elsevier).
  - Environment, Development and Sustainability (Springer)
  - Ecology and Evolution (Wiley)
  - IEEE Access (IEEE)

Natural beauty of New Zealand.
Above: The lupins at Lake Tekapo.
Below: Diamond Harbour, Christchurch.

Awards:

- 2017 & 2018 USM Sanggar Sanjung Awards (Journal Publication)
- 2018 USM Excellent Service Award
- Malaysian Mathematical Sciences Society First Prize Award (Masters Thesis)
- Travel Grant Award for ANZIAM 2014
- Kalman Summer New Zealand Scholarship Award
- ICTP Italy Travel Grant for IWOMB 2020

-         Southeast Asian Mathematical Society (SEAMS) School 2018 on Dynamical Systems and Bifurcation Analysis (DySBA).

-         Workshop on Complex Systems Modelling & Simulation 2019 (CoSMoS 2019): IoT & Big Data Integration.

       -     National Symposium on Mathematical Analysis and its Applications   ......(SNAMA 2019) Jakarta, Indonesia.

-         Institute of Engineering Mathematics, Universiti Malaysia Perlis 2018 Seminar Series, Malaysia.

-         SEAMS School 2018 on DySBA, Malaysia.

-         University of the Phillipines Baguio 2019 Research Seminar.

-         The International Conference on Modelling for Water Resource Management (M4WARM2019), Hanoi, Vietnam.

-         University of the East (UE) Mathematics and Statistics Lecture Series, Manila, Phillipines.

-         University of the Phillipines Baguio (External)

-         Universiti Tun Hussein Onn Malaysia (External)

Springer Proceedings in Mathematics & Statistics

Reviewing

Activities

Been a Reviewer for the following research journals and conference proceedings:

-      Theoretical Ecology (Springer)

-      Chaos Solitons & Fractals (Elsevier)

-      International Journal of Systems Science (Taylor & Francis)

-      Ecology & Evolution (Wiley)

-      Bulletin of the Malaysian Mathematical Sciences Society (Springer-Nature)

-      Environment, Development and Sustainability (Springer)

-      Sains Malaysiana (UKM Press)

-      Springer Proceedings in Mathematics & Statistics (Springer-Nature)

-      Philippine Science Letters

-      Malaysian Journal of Mathematical Sciences: Special Issue of CMIS2018 (UPM Publisher)

-      Journal of Mathematics Research (Canadian Center of Science and Education)

-      ESTEEM Journal of Science and Technology (UiTM Press)

-      The Applied Mathematics in Science and Engineering (APPEMSE 2017 & 2018) International Conference Proceedings (Malaysia Technical Scientist Association)

-      The 1st International Conference on Applied & Industrial Mathematics and Statistics 2017 (ICoAIMS 2017)

-      The 3rd International Conference on Computing, Mathematics and Statistics 2017 (iCMS2017)

-      The 5th Joint International Conference on New Challenges for Statistical Software: The Use of R in Official Statistics (UROS2017), Asia Pacific.

-      The 25th National Symposium on Mathematical Sciences (SKSM25): AIP Conference Proceedings.

-      Research on Applied Mathematics and Applied Science in Engineering (ARAMSE 2018)

-      International Conference on Mathematical Sciences and Technology 2018 (MathTech 2018)

-      The 2018 Conference on Mathematics, Informatics and Statistics (CMIS2018)

-      The 27th National Symposium on Mathematical Sciences (SKSM27): AIP Conference Proceedings.

-      International Conference on Mathematical Sciences and Technology 2018 (MathTech 2018): AIP Conference Proceedings.

Ojonubah James Omaiye, Dynamical Systems and Ecology (Completed)

Nur Farhana Hazwani Abdul Shamad, Ecology (On-going)
Zati Iwani Abdul Manaf, Dynamical Systems and Ecology (On-going)

Murtala Bello Aliyu, Dynamical Systems and Ecology (On-going)

'Afifi Md Desa, Dynamical Systems and Biochemical Process (On-going)

Mahmoud Ahmed Abdelaziz, Fractional Diff. Equations (On-going)

Elshahed Mahmoud Moustafa, Fractional Diff. Equations (On-going)

Fatima Sulayman, Epidemiology (On-going)

Lloyd Lee Wen Feng, Agent-Based Modelling (Completed)

Fazilah Ahmad, Dynamical Systems (On-going)
Elshahed Mahmoud Moustafa, Dynamical Systems (Completed)

MSG382 Modelling Laboratory II

MAT514 Mathematical Modelling (Masters Level)

PUBLICATIONS

On the Construction of Invariant Region for a Diffusive Prey-Predator Model

Proceedings of 2nd Regional Conference on Applied and Engineering Mathematics, Penang (Institut Matematik Kejuruteraan, UniMAP. 65-68).

On the Implementation of Finite Element Method to Investigate the Dynamics of Prey-Predator Model with Two-Dimensional Diffusion

American Institute of Physics Conference Proceedings (AIP Conf. Proc. 1482, 3 (New York: American Institute of Physics, 3-7).

Spatio-temporal Patterns of a Diffusive Prey-Predator Model in Two-Space Dimension

Proceedings of The International Conference on Computer Engineering & Mathematical Sciences, Kuala Lumpur (Science and Knowledge Research Society, 7-13).

On the Decay of Energy in a Diffusive Prey-Predator Model

Journal of Applied Sciences. 12 (21), 2252-2258.

Modelling the spatiotemporal dynamics of diffusive prey-predator interactions: Pattern formation and ecological implications.

ScienceAsia. 39, 31-36.

Effects of different dispersal patterns on the presence-absence of multiple species.

Communications in Nonlinear Science and Numerical Simulation. 56, 115-130.

Dynamical analysis of a fractional-order Rosenzweig–MacArthur model incorporating a prey refuge.

Chaos, Solitons & Fractals, 109, 1-13.

Modelling biotic interactions, dispersal effects and the stability of multi-species community compositions.

AIP Conference Proceedings, 1974 (1), 020079.

How can modelling tools inform environmental and conservation policies?

International Journal of Engineering & Technology, 2018. 7 (4.28), 333-337.

Diversity in interaction strength promotes rich dynamical behaviours in a three-species competition system.

Applied Mathematics and Computation, 353, 243-253.

Dynamical Analysis of a Fractional-Order Hantavirus Infection Model

International Journal of Nonlinear Sciences and Numerical Simulation, 2191-0294, 1-11.

Stage structure and refuge effects in the dynamical analysis of a fractional-order Rosenzweig-MacArthur prey-predator model

Progress in Fractional Differentiation and Applications. 5 (1), 1-17.

The roles of biotic interactions and environmental factors on multispecies dynamics

Open Journal of Ecology, 9(10), 426-442.

Dynamical Systems, Bifurcation Analysis and Applications.

Springer Proceedings in Mathematics & Statistics, 295, Springer Singapore.

Numerical bifurcation and stability analyses of partial differential equations with applications to competitive system in ecology

Dynamical Systems, Bifurcation Analysis and Applications, Springer Proceedings in Mathematics & Statistics, 295, 117-132.

Computational Dynamical Systems Using XPPAUT

Dynamical Systems, Bifurcation Analysis and Applications, Springer Proceedings in Mathematics & Statistics, 295, 175-203.

Optimal harvesting regions of a polluted predator-prey fishery system

Dynamical Systems, Bifurcation Analysis and Applications, Springer Proceedings in Mathematics & Statistics, 295, 15-29.

Analysis of a discrete-time fractional order sir epidemic model for childhood diseases

Dynamical Systems, Bifurcation Analysis and Applications, Springer Proceedings in Mathematics & Statistics, 295, 69-88.

Effect of biodiversity on the spread of Leptospirosis infection.

AIP Conference Proceedings, 2184 (1), 060053.

Effects of asymmetrical biotic interactions on multispecies dynamics

IOP Conference Series Proceedings: Earth and Environmental Science, 380 (1), 012013.

Unravelling the Myths of R0 in Controlling the Dynamics of COVID-19 Outbreak: a Modelling Perspective.

Chaos, Solitons & Fractals 140 (2020), 109943.

Codimension one and two bifurcations of a discrete-time fractional-order SEIR measles epidemic model with constant vaccination

Chaos, Solitons & Fractals 140 (2020), 110104.

Dynamical analysis of a fractional order eco-epidemiological model with nonlinear incidence rate and prey refuge.

Journal of Applied Mathematics and Computing (2020).

Stability analysis of the fractional-order prey-predator model with infection.

International Journal of Modelling and Simulation, DOI:10.1080/02286203.2020.1783131

Impacts of asymmetric biotic interactions and environmental factors on the presence-absence of multispecies

Pertanika Journal of Sciences and Technology, 28 (1) Jan. 2020, 1-18.

Dynamical analysis of a fractional order eco-epidemiological model with disease in prey population.

Advances in Difference Equations, 2020 (1), 48.

Discrete-Time Fractional Order SIR Epidemic Model with Saturated Treatment Function

International Journal of Nonlinear Sciences and Numerical Simulation, 1, (IJNSNS 2020 – Published: Ahead of Print).

Effects of Biotic Interactions, Abiotic Environments and Harvesting on the Spread of Hantavirus Infection

Matematika: Malaysian Journal of Industrial and Applied Mathematics 36 (1), 1-14.

The biodiversity effect in regulating the prevalence of Sin Nombre Virus (SNV)

Malaysian Journal of Fundamental and Applied Sciences 16 (3), 271-276.

Assessing the impacts of competition and dispersal on a multiple interactions type model

Chaos, Solitons & Fractals, Elsevier (Under Review)

Contrasting Effects of Prey Refuge on Biodiversity of Species

Journal of Applied Mathematics and Computing, Springer (Submitted)

Internal Phosphorus Recycling Promotes A Rich and Complex Dynamic in Algae-phosphorus Model: Implications for Eutrophication Management

Chaos, Solitons & Fractals, Elsevier (Submitted)

Local dispersal, trophic interactions and handling times mediate contrasting effects in prey-predator dynamics

Chaos, Solitons & Fractals, Elsevier (Under Review)

Effects of dimensionality of space on the presence-absence of multiple species

Computational and Applied Mathematics, Springer (Submitted)

Revisiting Discrepancies between Stochastic Agent-Based and Deterministic Models: a Single-Species Perspective

Journal of Computational Science, Elsevier (Submitted)

The effects of amplification and dilution agent in transmitting Sin Nombre Virus (SNV) in deer mouse population.

Matematika: Malaysian Journal of Industrial and Applied Mathematics, 36(2), pp.85-98.

Modelling the Dilution and Amplification Effects in Deer Mouse in GAMA 1.8.

In Modelling, Simulation and Applications of Complex Systems – CoSMoS 2019, Penang, Malaysia, April 8-11, 2019. Springer Proceedings in Mathematics & Statistics. Springer, Singapore. (In-Revision)

Agent-Based Modelling using GAMA 1.8 with Applications to Biological System in Epidemiology.

In Modelling, Simulation and Applications of Complex Systems – CoSMoS 2019, Penang, Malaysia, April 8-11, 2019. Springer Proceedings in Mathematics & Statistics. Springer, Singapore. (In-Revision)

Managing Regime Shift in Lake Systems by Modelling and Simulation.

In Modelling, Simulation and Applications of Complex Systems – CoSMoS 2019, Penang, Malaysia, April 8-11, 2019. Springer Proceedings in Mathematics & Statistics. Springer, Singapore. (In-Revision)

Bifurcation Analysis of a Tuberculosis Model with the Risk of Re-Infection.

In Modelling, Simulation and Applications of Complex Systems – CoSMoS 2019, Penang, Malaysia, April 8-11, 2019. Springer Proceedings in Mathematics & Statistics. Springer, Singapore. (In-Revision)

Stochastic Modelling of the Biodiversity Effect on Sin Nombre Virus (SNV) Prevalence.

AIP Conference Proceedings – SKSM 27 (Accepted).

Combined influences of predation and environment on species biodiversity

AIP Conference Proceedings – SKSM 27 (Accepted).

Alternative stable states and limit cycles in a three-species ecological system

AIP Conference Proceedings – SKSM 27 (Accepted).

CONFERENCES & SYMPOSIUMS

Los Baños, Philippines (Participant)

Short-Term Research Grant – Main Investigator

Project Title: Modelling the Presence-Absence of Interacting Species

Main Awards (Journal Publication)

Hadiah Sanjungan (Journal Publication)

MOSTI Research Grant – Co-Investigator

COVID-19 Epidemiological Analysis and Strategies (CEASe Project)

Malaysian Mathematical Sciences Society (PERSAMA)

Australian and New Zealand Industrial and Applied Mathematics (ANZIAM)

Te Pūnaha Matatini (NZ Centre of Research Excellence in Complex Systems)

New Zealand Mathematical Society (NZMS)

New Zealand Ecological Society (NZES)