John G. O’Hara

701 total citations
42 papers, 495 citations indexed

About

John G. O’Hara is a scholar working on Finance, Economics and Econometrics and Numerical Analysis. According to data from OpenAlex, John G. O’Hara has authored 42 papers receiving a total of 495 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Finance, 13 papers in Economics and Econometrics and 12 papers in Numerical Analysis. Recurrent topics in John G. O’Hara's work include Stochastic processes and financial applications (28 papers), Financial Markets and Investment Strategies (13 papers) and Complex Systems and Time Series Analysis (11 papers). John G. O’Hara is often cited by papers focused on Stochastic processes and financial applications (28 papers), Financial Markets and Investment Strategies (13 papers) and Complex Systems and Time Series Analysis (11 papers). John G. O’Hara collaborates with scholars based in United Kingdom, South Africa and Malaysia. John G. O’Hara's co-authors include P. G. L. Leach, Hong‐Kun Xu, C. Sophocleous, K. S. Govinder and Edward Tsang and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Applied Mathematics and Computation and Journal of Differential Equations.

In The Last Decade

John G. O’Hara

38 papers receiving 465 citations

Peers

Countries citing papers authored by John G. O’Hara

Since Specialization

Citations

This map shows the geographic impact of John G. O’Hara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John G. O’Hara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John G. O’Hara more than expected).

Fields of papers citing papers by John G. O’Hara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John G. O’Hara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John G. O’Hara. The network helps show where John G. O’Hara may publish in the future.

Co-authorship network of co-authors of John G. O’Hara

This figure shows the co-authorship network connecting the top 25 collaborators of John G. O’Hara. A scholar is included among the top collaborators of John G. O’Hara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John G. O’Hara. John G. O’Hara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Event prediction within directional change framework using a CNN-LSTM model 2022 ·Neural Computing and Applications ·(unknown), John G. O’Hara	35
2	Option pricing: the reduced-form SDE model 2022 ·The Journal of Difference Equations and Applications ·(unknown), K. S. Govinder, John G. O’Hara	1
3	Cross-sectional volatility index as a proxy for the VIX in an Asian market 2017 ·Cogent Economics & Finance ·(unknown), John G. O’Hara, (unknown)	1
4	Pricing holder-extendable options in a stochastic volatility model with an Ornstein-Uhlenbeck process 2017 ·Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) ·(unknown), (unknown), John G. O’Hara, (unknown)	2
5	Efficient pricing of discrete arithmetic Asian options under mean reversion and jumps based on Fourier-cosine expansions 2016 ·Journal of Computational and Applied Mathematics ·(unknown), John G. O’Hara, (unknown)	11
6	A path-independent approach to integrated variance under the CEV model 2014 ·Mathematics and Computers in Simulation ·(unknown), John G. O’Hara, (unknown)	1
7	Pricing Extendible Options Using the Fast Fourier Transform 2014 ·Mathematical Problems in Engineering ·(unknown), John G. O’Hara, (unknown)	10
8	Risk-neutral valuation of power barrier options 2013 ·Applied Mathematics Letters ·(unknown), John G. O’Hara, (unknown)	9
9	Pricing Power Options under the Heston Dynamics using the FFT 2013 ·DergiPark (Istanbul University) ·(unknown), John G. O’Hara, (unknown)	6
10	Symmetry analysis of a model of stochastic volatility with time-dependent parameters 2011 ·Journal of Computational and Applied Mathematics ·C. Sophocleous, John G. O’Hara, P. G. L. Leach	8
11	Optimal system of Lie group invariant solutions for the Asian option PDE 2011 ·Mathematical Methods in the Applied Sciences ·(unknown), K. S. Govinder, John G. O’Hara	6
12	Solving a nonlinear pde that prices real options using utility based pricing methods 2011 ·Nonlinear Analysis Real World Applications ·(unknown), K. S. Govinder, John G. O’Hara	5
13	FFT based option pricing under a mean reverting process with stochastic volatility and jumps 2010 ·Journal of Computational and Applied Mathematics ·(unknown), John G. O’Hara	33
14	Embedding the Vasicek model into the Cox-Ingersoll-Ross model 2010 ·Mathematical Methods in the Applied Sciences ·(unknown), P. G. L. Leach, John G. O’Hara	3
15	A note on the integrability of the classical portfolio selection model 2010 ·Applied Mathematics Letters ·(unknown), John G. O’Hara, P. G. L. Leach	3
16	Invariance properties of a general bond-pricing equation 2008 ·Journal of Differential Equations ·(unknown), P. G. L. Leach, John G. O’Hara	33
17	An optimal system and group-invariant solutions of the Cox-Ingersoll-Ross pricing equation 2008 ·Applied Mathematics and Computation ·(unknown), P. G. L. Leach, John G. O’Hara	21
18	Iterative Approaches to Convex Minimization Problems 2004 ·Numerical Functional Analysis and Optimization ·John G. O’Hara, (unknown), Hong‐Kun Xu	1
19	Iterative approaches to finding nearest common fixed points of nonexpansive mappings in Hilbert spaces 2003 ·Nonlinear Analysis ·John G. O’Hara, (unknown), Hong‐Kun Xu	65
20	Construction of separating functions for the quasi—linear differential equation (py′)′+qy=0 1998 ·Applicable Analysis ·John G. O’Hara, (unknown)	0

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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