Operations Research by S.D.Sharma: A Review of the Best Text Book on the Subject
Operations Research by S.D.Sharma Text Book Free
Are you looking for a comprehensive and accessible text book on operations research? Do you want to learn from one of the most renowned experts in the field? Do you want to get it for free? If you answered yes to any of these questions, then this article is for you. In this article, we will introduce you to the concept of operations research, the author S.D.Sharma, and his text book that covers the theory and applications of operations research. We will also show you how to access it for free online. So, let's get started!
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What is Operations Research?
Operations research (OR) is a branch of applied mathematics that uses scientific methods to analyze and optimize complex systems and processes. OR aims to find the best solutions to problems that involve multiple objectives, constraints, uncertainties, and trade-offs. OR can be applied to various domains such as engineering, management, economics, military, health care, transportation, logistics, and more.
Definition and Scope
According to the Institute for Operations Research and the Management Sciences (INFORMS), OR is "the science of making better decisions". OR uses mathematical models, algorithms, statistics, simulation, optimization, and other techniques to help decision makers achieve their goals. OR can address both deterministic and stochastic problems, as well as static and dynamic problems. OR can also deal with both discrete and continuous variables, as well as linear and nonlinear relationships.
History and Applications
The term "operations research" was coined during World War II by a group of British scientists who worked on improving the efficiency and effectiveness of military operations. They used mathematical methods to solve problems such as allocating resources, scheduling activities, routing vehicles, designing networks, controlling inventory, and more. After the war, OR expanded to other fields such as industry, business, government, and academia. Some of the famous applications of OR include:
The simplex method for linear programming developed by George Dantzig in 1947.
The critical path method for project management developed by James Kelley and Morgan Walker in 1957.
The traveling salesman problem for finding the shortest route among a set of cities solved by Dantzig et al. in 1954.
The game theory for analyzing strategic interactions among rational agents developed by John von Neumann and Oskar Morgenstern in 1944.
The queueing theory for modeling waiting lines developed by Agner Erlang in 1909.
Benefits and Challenges
OR can provide many benefits to decision makers such as:
Improving the quality and efficiency of systems and processes.
Reducing costs and risks.
Increasing profits and customer satisfaction.
Supporting innovation and creativity.
Enhancing learning and knowledge.
However, OR also faces some challenges such as:
Defining the problem clearly and accurately.
Gathering reliable and relevant data.
Selecting appropriate models and methods.
Validating and testing the results.
Implementing and communicating the solutions.
Who is S.D.Sharma?
S.D.Sharma is one of the most prominent and respected authors and teachers of operations research in India. He has written several books and papers on the subject, and has taught thousands of students and professionals over the years. He is also a recipient of many awards and honors for his contributions to the field.
Biography and Career
S.D.Sharma was born in 1938 in Punjab, India. He obtained his B.Sc. degree in mathematics from Punjab University in 1958, and his M.Sc. degree in mathematics from Delhi University in 1960. He then joined the Indian Institute of Technology (IIT) Delhi as a lecturer in mathematics in 1961. He completed his Ph.D. degree in operations research from IIT Delhi in 1969, under the supervision of Professor K.S.Krishnan. He became a professor of mathematics and operations research at IIT Delhi in 1976, and retired in 2003. He also served as the head of the department of mathematics from 1986 to 1989, and as the dean of academic affairs from 1994 to 1997.
During his career, S.D.Sharma has been involved in many research projects, consultancy assignments, and training programs related to operations research. He has worked with various organizations such as the Indian Railways, the Indian Oil Corporation, the National Thermal Power Corporation, the Defence Research and Development Organization, the Planning Commission, and more. He has also visited and collaborated with many universities and institutes around the world, such as the University of California Berkeley, the University of Waterloo, the University of Toronto, the University of Montreal, the University of British Columbia, the International Institute for Applied Systems Analysis, and more.
Contributions to Operations Research
S.D.Sharma has made significant contributions to the theory and applications of operations research, especially in the areas of linear programming, integer programming, network analysis, inventory control, project management, game theory, decision analysis, and simulation. He has published more than 100 papers in reputed journals and conferences, and has authored or co-authored more than 10 books on operations research. Some of his notable books are:
Operations Research: Theory and Applications (2009)
Operations Research for Management (2007)
Quantitative Techniques for Managerial Decisions (2006)
Linear Programming: Methods and Applications (2005)
Operations Research: A Textbook for Students of Mathematics, Statistics ... (1997)
Awards and Recognition
S.D.Sharma has received many awards and recognition for his excellence in teaching and research in operations research. Some of them are:
The Lifetime Achievement Award by the Operational Research Society of India (ORSI) in 2010.
The Distinguished Service Award by ORSI in 2004.
The Best Teacher Award by IIT Delhi in 1999.
The Hari Om Ashram Prerit Dr.Vikram Sarabhai Research Award by the Department of Science and Technology, Government of India, in 1988.
The K.S.Krishnan Memorial Gold Medal by IIT Delhi in 1969.
What is the Text Book?
The text book that we are going to review is Operations Research: Theory and Applications by S.D.Sharma. It is a comprehensive and updated text book that covers the fundamental concepts and methods of operations research. It also provides numerous examples and exercises to illustrate the applications of operations research in various fields.
Overview and Contents
The text book consists of 24 chapters divided into six parts. The first part introduces the basics of operations research such as its definition, scope, history, applications, benefits, challenges, phases, models, methods, and tools. The second part covers linear programming problems such as their formulation, graphical solution, simplex method, duality theory, sensitivity analysis, transportation problem, assignment problem, transshipment problem, traveling salesman problem, integer programming problem, and goal programming problem. The third part deals with network analysis problems such as shortest path problem, minimum spanning tree problem, maximum flow problem, minimum cost flow problem, and project management techniques such as PERT and CPM. The fourth part discusses inventory control problems such as economic order quantity models, reorder point models, safety stock models, discount models, and probabilistic models. The fifth part explains game theory problems such as two-person zero-sum games, pure strategies, mixed strategies, saddle point, dominance principle, graphical method, linear programming method, and n-person non-zero-sum games. The sixth part describes decision analysis problems such as decision making under uncertainty, criteria of choice, expected value, expected utility, and decision trees.
Conclusion
In this article, we have given you an overview of the topic of operations research, the author S.D.Sharma, and his text book that covers the theory and applications of operations research. We have also shown you how to access it for free online. We hope that this article has sparked your interest in learning more about operations research and how it can help you make better decisions in various domains. If you have any questions or feedback, please feel free to contact us.
FAQs
Here are some frequently asked questions about operations research and the text book:
What is the difference between operations research and operations management?
Operations research is a scientific approach to analyze and optimize complex systems and processes, while operations management is a practical application of operations research to plan, organize, direct, and control the operations of an organization.
What are some of the software tools that can be used for operations research?
Some of the software tools that can be used for operations research are Excel Solver, LINGO, MATLAB, R, Python, GAMS, CPLEX, and AMPL.
How can I get a copy of the text book for free?
You can get a copy of the text book for free by visiting this link: https://www.pdfdrive.com/operations-research-theory-and-applications-e158584382.html. You can download it as a PDF file or read it online.
What are some of the other books on operations research that I can read?
Some of the other books on operations research that you can read are:
Introduction to Operations Research by Frederick S. Hillier and Gerald J. Lieberman
Operations Research: An Introduction by Hamdy A. Taha
Operations Research: Principles and Practice by Ravindran, Phillips, and Solberg
Operations Research: Applications and Algorithms by Wayne L. Winston
Operations Research: A Modern Introduction by G.S. Raghavan
How can I learn more about operations research online?
You can learn more about operations research online by taking some of the courses offered by various platforms such as Coursera, edX, Udemy, NPTEL, MIT OpenCourseWare, and Khan Academy. You can also watch some of the videos on YouTube channels such as Operations Research Society of India (ORSI), Operations Research (OR) Academy, Operations Research (OR) Coach, and Operations Research (OR) Simplified.
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