SKU: 80467151493

Calculus of Variations

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Calculus of VariationsBased on a series of lectures given by I. M. Gelfand at Moscow State University, this book actually goes considerably beyond the material presented in the lectures. The aim is to give a treatment of the elements of the calculus of variations in a form both easily understandable and sufficiently modern. Considerable attention is devoted to physical applications of variational methods, e. g., canonical equations, variational principles of mechanics, and

Based on a series of lectures given by I. M. Gelfand at Moscow State University, this book actually goes considerably beyond the material presented in the lectures. The aim is to give a treatment of the elements of the calculus of variations in a form both easily understandable and sufficiently modern. Considerable attention is devoted to physical applications of variational methods, e.g., canonical equations, variational principles of mechanics, and conservation laws.
The reader who merely wishes to become familiar with the most basic concepts and methods of the calculus of variations need only study the first chapter. Students wishing a more extensive treatment, however, will find the first six chapters comprise a complete university-level course in the subject, including the theory of fields and sufficient conditions for weak and strong extrema. Chapter 7 considers the application of variational methods to the study of systems with infinite degrees of freedom, and Chapter 8 deals with direct methods in the calculus of variations. The problems following each chapter were made specially for this English-language edition, and many of them comment further on corresponding parts of the text. Two appendices and suggestions for supplementary reading round out the text.
Substantially revised and corrected by the translator, this inexpensive new edition will be welcomed by advanced undergraduate and graduate students of mathematics and physics.

Binding Type: Paperback
Publisher: Dover Publications
Published: 10/16/2000
ISBN: 9780486414485
Pages: 256
Weight: 0.56lbs
Size: 8.48h x 5.35w x 0.51d

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SKU: 80467151493

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elkadie
Draper, US
★★★★★ 5
Buy it!
Color: Dark Blue, Size: 6.4-Quart - Deep
Love this pot! It’s the perfect size for large recipes, cleans very easily, and the rich, blue color is gorgeous!
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Reviewed in the United States on June 2, 2026
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trishc
Boise, US
★★★★★ 5
Great Product.
Color: Dark Blue, Size: 6.4-Quart - Deep
This is a great size, great value, holds heat. Made double recipe of Mac and cheese in it - brought it to a party and Mac and cheese was still warm. In glass it would have needed to be reheated. Also- looks awesome in my kitchen.
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Reviewed in the United States on May 13, 2026
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Drew D
Massapequa, US
★★★★★ 5
Heats evenly, quick clean up.
Color: Teal, Size: 6.4-Quart - Deep
Very heavy and well-made, heats evenly and cleans up in a snap, no scouring necessary. I’ve cooked everything from stewed chicken to etouffee and risotto, all dishes came out well.
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Reviewed in the United States on May 29, 2026
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LifeIsGood
Port Orchard, US
★★★★★ 4
Great choice. Choose medium to small sizes for easy maneuver
Color: Cream, Size: 7.3-Quart - Deep
Love this Dutch oven. I bought a cream one. I recommend a dark color: it may be easy to clean, but it may retain some foods colors. I recommend a medium sized oven. I have the big one and it is too heavy to carry on and when using for baking, it can be tricky. I made stew and chunk roast beef and worked good. I would recommend a medium size for good handling. Also because smaller sizes may be easier to use in electric stoves as the glass can get damaged.
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Reviewed in the United States on May 25, 2026
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Anthony Franklin
Charlottesville, US
★★★★★ 5
Beautiful pot
Color: Blue, Size: 6.4-Quart - Deep
I was a little bit skeptical buying a large Dutch oven at this price point, when the well known brand (that I won't name here) sell for at least 5x the cost. Ive never owned one at all, so unable to compare apples to apples. - Color and finish look great. Even better in person than the photos. - Its hefty. I was expecting it to be heavy, since last iron, but it feels like it is robust. - Cooking with it has been great so far - sauté veggies, add liquid and rice for fantastic Spanish rice. Some stirring needed to avoid sticking, but comparable to my non stick pans or better. The heavy mass of the Dutch oven dissipates heat more evenly. - The handles get pretty warm / hot during use even on stove top. Thats probably normal, since the pot and two handles are one continuous piece. Not a big deal. The small handle on lid stays night and cool. - Overall, this feels like a great purchase and will replace a lot of duties I was using various pans for. Time will tell how the durability is.
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Reviewed in the United States on July 30, 2025

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