Ajit Keshri - Academia.edu (original) (raw)

Papers by Ajit Keshri

Research paper thumbnail of The Dynamics of SEIQR-V Malware Propagation Model in IoT Networks

2022 International Conference on IoT and Blockchain Technology (ICIBT)

Research paper thumbnail of Epidemic model on Denial of Service attack in IoT network

2022 International Conference on IoT and Blockchain Technology (ICIBT)

Research paper thumbnail of COVID-19 created chaos across the globe: Three novel quarantine epidemic models

Chaos, Solitons & Fractals

Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on ... more Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre-including this research content-immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

Research paper thumbnail of Mathematical model, forecast and analysis on the spread of COVID-19

Chaos, Solitons, and Fractals, 2021

Pandemic COVID-19 which has infected more than 35,027,546 people and death more than 1,034,837 pe... more Pandemic COVID-19 which has infected more than 35,027,546 people and death more than 1,034,837 people in 235 countries as on October 05, 2020 has created a chaos across the globe. In this paper, we develop a compartmental epidemic model to understand the spreading behaviour of the disease in human population with a special case of Bhilwara, a desert town in India where successful control measures TTT (tracking, testing and treatment) was adopted to curb the disease in the very early phase of the spread of the disease in India. Local and global asymptotic stability is established for endemic equilibrium. Extensive numerical simulations with real parametric values are performed to validate the analytical results. Trend analysis of fatality rate, infection rate, and impact of lockdown is performed for USA, European countries, Russia, Iran, China, Japan, S. Korea with a comparative assessment by India. Kruskal - Wallis test is performed to test the null hypothesis for infected cases dur...

Research paper thumbnail of Distributed denial of service attack on targeted resources in a computer network for critical infrastructure: A differential e-epidemic model

Physica A: Statistical Mechanics and its Applications

Research paper thumbnail of A predator–prey model on the attacking behavior of malicious objects in wireless nanosensor networks

Nano Communication Networks

Research paper thumbnail of Mathematical model on distributed denial of service attack through Internet of things in a network

Nonlinear Engineering

Internet of Things (IoT) opens up the possibility of agglomerations of different types of devices... more Internet of Things (IoT) opens up the possibility of agglomerations of different types of devices, Internet and human elements to provide extreme interconnectivity among them towards achieving a completely connected world of things. The mainstream adaptation of IoT technology and its widespread use has also opened up a whole new platform for cyber perpetrators mostly used for distributed denial of service (DDoS) attacks. In this paper, under the influence of internal and external nodes, a two - fold epidemic model is developed where attack on IoT devices is first achieved and then IoT based distributed attack of malicious objects on targeted resources in a network has been established. This model is mainly based on Mirai botnet made of IoT devices which came into the limelight with three major DDoS attacks in 2016. The model is analyzed at equilibrium points to find the conditions for their local and global stability. Impact of external nodes on the over-all model is critically anal...

Research paper thumbnail of Library Formation of Known Malicious Attacks and their Future Variants

International Journal of Advanced Science and Technology, 2016

Research paper thumbnail of When rumors create chaos in e-commerce

Chaos, Solitons & Fractals

Research paper thumbnail of COVID-19 created chaos across the globe: Three novel quarantine epidemic models

Chaos, Solitons and Fractals, 2020

The latest version of human coronavirus said to be COVID-19 came out as a sudden pandemic disease... more The latest version of human coronavirus said to be COVID-19 came out as a sudden pandemic disease within human population and in the absence of vaccination and proper treatment till date, it daunting threats heavily to human lives, infecting more than 12, 11, 214 people and death more than 67, 666 people in 208 countries across the globe as on April 06, 2020, which is highly alarming. When no treatment or vaccine is available till date and to avoid COVID-19 to be transmitted in the community, social dis-tancing is the only way to prevent the disease, which is well taken into account in our novel epidemic models as a special compartment, that is, home isolation. Based on the transmitting behavior of COVID-19 in the human population, we develop three quarantine models of this pandemic taking into account the compartments: susceptible population, immigrant population, home isolation population, infectious population , hospital quarantine population, and recovered population. Local and global asymptotic stability is proved for all the three models. Extensive numerical simulations are performed to establish the analytical results with suitable examples. Our research reveals that home isolation and quarantine to hospitals are the two pivot force-control policies under the present situation when no treatment is available for this pandemic.

Research paper thumbnail of The Dynamics of SEIQR-V Malware Propagation Model in IoT Networks

2022 International Conference on IoT and Blockchain Technology (ICIBT)

Research paper thumbnail of Epidemic model on Denial of Service attack in IoT network

2022 International Conference on IoT and Blockchain Technology (ICIBT)

Research paper thumbnail of COVID-19 created chaos across the globe: Three novel quarantine epidemic models

Chaos, Solitons & Fractals

Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on ... more Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre-including this research content-immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

Research paper thumbnail of Mathematical model, forecast and analysis on the spread of COVID-19

Chaos, Solitons, and Fractals, 2021

Pandemic COVID-19 which has infected more than 35,027,546 people and death more than 1,034,837 pe... more Pandemic COVID-19 which has infected more than 35,027,546 people and death more than 1,034,837 people in 235 countries as on October 05, 2020 has created a chaos across the globe. In this paper, we develop a compartmental epidemic model to understand the spreading behaviour of the disease in human population with a special case of Bhilwara, a desert town in India where successful control measures TTT (tracking, testing and treatment) was adopted to curb the disease in the very early phase of the spread of the disease in India. Local and global asymptotic stability is established for endemic equilibrium. Extensive numerical simulations with real parametric values are performed to validate the analytical results. Trend analysis of fatality rate, infection rate, and impact of lockdown is performed for USA, European countries, Russia, Iran, China, Japan, S. Korea with a comparative assessment by India. Kruskal - Wallis test is performed to test the null hypothesis for infected cases dur...

Research paper thumbnail of Distributed denial of service attack on targeted resources in a computer network for critical infrastructure: A differential e-epidemic model

Physica A: Statistical Mechanics and its Applications

Research paper thumbnail of A predator–prey model on the attacking behavior of malicious objects in wireless nanosensor networks

Nano Communication Networks

Research paper thumbnail of Mathematical model on distributed denial of service attack through Internet of things in a network

Nonlinear Engineering

Internet of Things (IoT) opens up the possibility of agglomerations of different types of devices... more Internet of Things (IoT) opens up the possibility of agglomerations of different types of devices, Internet and human elements to provide extreme interconnectivity among them towards achieving a completely connected world of things. The mainstream adaptation of IoT technology and its widespread use has also opened up a whole new platform for cyber perpetrators mostly used for distributed denial of service (DDoS) attacks. In this paper, under the influence of internal and external nodes, a two - fold epidemic model is developed where attack on IoT devices is first achieved and then IoT based distributed attack of malicious objects on targeted resources in a network has been established. This model is mainly based on Mirai botnet made of IoT devices which came into the limelight with three major DDoS attacks in 2016. The model is analyzed at equilibrium points to find the conditions for their local and global stability. Impact of external nodes on the over-all model is critically anal...

Research paper thumbnail of Library Formation of Known Malicious Attacks and their Future Variants

International Journal of Advanced Science and Technology, 2016

Research paper thumbnail of When rumors create chaos in e-commerce

Chaos, Solitons & Fractals

Research paper thumbnail of COVID-19 created chaos across the globe: Three novel quarantine epidemic models

Chaos, Solitons and Fractals, 2020

The latest version of human coronavirus said to be COVID-19 came out as a sudden pandemic disease... more The latest version of human coronavirus said to be COVID-19 came out as a sudden pandemic disease within human population and in the absence of vaccination and proper treatment till date, it daunting threats heavily to human lives, infecting more than 12, 11, 214 people and death more than 67, 666 people in 208 countries across the globe as on April 06, 2020, which is highly alarming. When no treatment or vaccine is available till date and to avoid COVID-19 to be transmitted in the community, social dis-tancing is the only way to prevent the disease, which is well taken into account in our novel epidemic models as a special compartment, that is, home isolation. Based on the transmitting behavior of COVID-19 in the human population, we develop three quarantine models of this pandemic taking into account the compartments: susceptible population, immigrant population, home isolation population, infectious population , hospital quarantine population, and recovered population. Local and global asymptotic stability is proved for all the three models. Extensive numerical simulations are performed to establish the analytical results with suitable examples. Our research reveals that home isolation and quarantine to hospitals are the two pivot force-control policies under the present situation when no treatment is available for this pandemic.