Partial Differential Equations in Physics. by Arnold Sommerfeld - 1964.

New York, NY Academic Press, 1964. Paperback First Edition Thus [1964], Second Printing. Very Good+ in Wraps: shows indications of very light use: a little wear to the extremities; mild rubbing to wrapper covers; the front endpaper has been clipped at the upper corner; the publisher's price has been rubbed out at the upper corner of the front panel; the binding is square and secure; the text is clean. Free of ownership names, dates, addresses, notations, inscriptions, stamps, or labels. Not perfect, but remains clean, sturdy, and quite presentable. NOT a Remainder, Book-Club, or Ex-Library. 8vo. (8.25 x 5.5 x 0.75 inches). x, 335 pages. Translated by Ernest G. Straus. Sewn binding. Weight: 14.4 ounces. Lectues on Theoretical Physics, Volume VI. First Edition Thus [1964], Second Printing. Academic Press Paperback. Arnold Johannes Wilhelm Sommerfeld (1868 – 1951) was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and mentored a large number of students for the new era of theoretical physics. He served as PhD supervisor for many Nobel Prize winners in physics and chemistry (his record of mentorship is comparable only to that of J. J. Thomson). He introduced the 2nd quantum number (azimuthal quantum number) and the 4th quantum number (spin quantum number). He also introduced the fine-structure constant and pioneered X-ray wave theory. Edward Teller: "Sommerfeld ... the greatest teacher of theoretical physics".