Berlin, Springer, 1932. 8vo. Bound in contemporary half cloth with gilt lettering, In ""Zeitschrift für Physik"", Band 75, 1932. Entire issue offered. Two stamps to title page, otherwise fine. Pp. 622-647. [Entire volume: VIII, 850 pp + frontiespiece].
First appearance of Fock's seminal paper in which he introduced his algebraic construction used in quantum mechanics to construct the quantum states space of a variable or unknown number of identical particles from a single particle Hilbert space, often referred to as Fock space. Technically, the Fock space is (the Hilbert space completion of) the direct sum of the symmetric or antisymmetric tensors in the tensor powers of a single-particle Hilbert space H.""Between 1928 and 1934, Fok obtained important results in the quantum field theory. He completed the mathematical method of secondary quantization proposed by Paul A.M. Dirac and developed by Pascual Jordan and Eugene Wigner. It has been shown that this method does not go beyond the traditional framework of quantum mechanics (as Jordan argued) and that the two ways of description are completely equivalent. As early as 1934 Fok suggested describing a system with a variable number of particles (bosons) in the representations of the secondary quantization with the aid of a generating functional (""Fok’s functional"").In his papers Fok introduced a number of new notions. such as ""the Fok space"" (a Hilbert space in the representation of secondary quantization). In papers written with Dirac and Boris Podolsky (1932), Dirac’s results on interaction of charged particles by the exchange of virtual photons were extended. The one-dimensional problem solved by Dirac was generalized to the realistic three-dimensional case: the multitime formalism of Dirac, Podolsky, and Fok was introduced"" and quantum electrodynamics was formulated in its modern form."" (DSB).
Berlin, Springer, 1932. 8vo. Bound in contemporary half cloth with gilt lettering, In ""Zeitschrift für Physik"", Band 75, 1932. Entire volume offered. Two stamps to title page, otherwise fine. Pp. 622-647. [Entire volume: VIII, 850 pp + frontiespiece].
First appearance of Fock's seminal paper in which he introduced his algebraic construction used in quantum mechanics to construct the quantum states space of a variable or unknown number of identical particles from a single particle Hilbert space, often referred to as Fock space. Technically, the Fock space is (the Hilbert space completion of) the direct sum of the symmetric or antisymmetric tensors in the tensor powers of a single-particle Hilbert space H.""Between 1928 and 1934, Fok obtained important results in the quantum field theory. He completed the mathematical method of secondary quantization proposed by Paul A.M. Dirac and developed by Pascual Jordan and Eugene Wigner. It has been shown that this method does not go beyond the traditional framework of quantum mechanics (as Jordan argued) and that the two ways of description are completely equivalent. As early as 1934 Fok suggested describing a system with a variable number of particles (bosons) in the representations of the secondary quantization with the aid of a generating functional (""Fok’s functional"").In his papers Fok introduced a number of new notions. such as ""the Fok space"" (a Hilbert space in the representation of secondary quantization). In papers written with Dirac and Boris Podolsky (1932), Dirac’s results on interaction of charged particles by the exchange of virtual photons were extended. The one-dimensional problem solved by Dirac was generalized to the realistic three-dimensional case: the multitime formalism of Dirac, Podolsky, and Fok was introduced"" and quantum electrodynamics was formulated in its modern form."" (DSB).
.: 2. Leipzig, Gustav Fock, 1894, in-8°, (540 pp), orig.wrapper, (ca 18300 titles of dissertations in the field of classical philology and history), wrappers slightly torn, ex-library.
Mainz, Scholz, (1934). 8°. 13 Bl. Mit 12 farb. Illustrationen von Beatrice Braun-Fock. Farb. illustr. Orig.-Halbleinenband.
«Scholz Künstler-Bilderbücher», Nr. 503. – Papier etwas finger- und stockfleckig. Der Einband berieben und bestossen.
Berlin, Springer, 1928. 8vo. Bound in contemporary half cloth with gilt lettering, In ""Zeitschrift für Physik"", Band 51, 1928. Entire issue offered. Two stamps to title page, otherwise fine. Pp. 165-80. [Entire volume: VII, (1) 903 pp].
First appearance of Born and Fock's important paper in which they introduced their adiabatic theorem, a concept in quantum mechanics which they stated as follows: "" A physical system remains in its instantaneous eigenstate if a given perturbation is acting on it slowly enough and if there is a gap between the eigenvalue and the rest of the Hamiltonian's spectrum."" (From the present paper). The concept of this theorem deals with the time-dependent Hamiltonian - a subject of Quantum dynamics - where the Hamiltonian changes with time.The present issue also contain Gamow's ""Zur Quantentheorie des Atomkernes"" containing the first direct calculation of the Geiger-Nuttall law.
Berlin, Springer, 1930. 8vo. In contemporary halv cloth with gilt lettering to spine. In ""Zeitschrift für Physik"", Bd. 66, 1930. Entire issue offered. Stamp to front free end-paper and titlepage, otherwise fine and clean. Pp. 178-81. [Entire volume: IV, 401 pp.].
First printing of Jordan and Fock's paper on what they called: ""new uncertainty characteristics and electromagnetic fields"". Here they examined how the quantized field strengths in Dirac's theory were to be measured and the status of the uncertainty relations with respect to these quantities. These examinations caused that for a while it seemed that particle theory and field theory might be in conflict.
Berlin, Springer, 1928. 8vo. Bound in full cloth with gilt lettering to spine, In ""Zeitschrift für Physik"", Band 51, 1928. Entire issue offered. Embossed stamp to title page and library label pasted on to pasted down front free end-paper, otherwise fine. Pp. 165-80. [Entire volume: VII, (1) 903 pp].
First appearance of Born and Fock's important paper in which they introduced their adiabatic theorem, a concept in quantum mechanics which they stated as follows: "" A physical system remains in its instantaneous eigenstate if a given perturbation is acting on it slowly enough and if there is a gap between the eigenvalue and the rest of the Hamiltonian's spectrum."" (From the present paper). The concept of this theorem deals with the time-dependent Hamiltonian - a subject of Quantum dynamics - where the Hamiltonian changes with time.The present issue also contain Gamow's ""Zur Quantentheorie des Atomkernes"" containing the first direct calculation of the Geiger-Nuttall law.
Demets E. 1901 approx.
Très bon état Grand format Piano
Partitions sur les Autres conflits Enoch 1913
Etat moyen Petit format
1934-1937 Four zoological antiquarian book sale catalogues. 130, 184, 202, 169 p., paperbound (original printed covers). Covers somewhat browned and with annotations. From the work library of the famous English antiquarian book firm Whelson & Wesley.
Paris: Société d'éditions géographiques, maritimes et coloniales, 1929 in-8, XVI-188 pages, 2 planches hors texte, croquis, grande carte dépliante du Sahara dressée par le Capitaine G. Delingette (72 x 103 cm) (carte en parfait état). Broché, couv. un peu défr., bon état.
Le chemin de fer transsaharien. Tracé, construction, exploitation. (Paris: Société d'éditions géographiques, maritimes et coloniales, 1929) [M.C.: Afrique noire, chemin de fer, Sahara]
Société d'Editions Géographiques, Maritimes et Coloniale 1929 Grand in-8 broché, non coupé, 188 pp. Figures dans le texte, 2 planches hors-text. Sans la carte du Sahara repl. in fine.
Bon état d’occasion
Hamburg, Koehler, 2000; in-8, 353 pp., cartonnage de l'éditeur.
.
Société Nouvelle d'Editions Musicales 1910 approx.
Bon état Grand format Piano
Amsterdam, Scheltens & Giltay 1935 316pp. + frontispice + buitentekstplaten, 29cm., linnen band (met bandtekening van Lion Cachet), stempeltje, goede staat, N72633
FOCK Gustav ( editor -publisher) - [ ] BIBLIOTHECA HISTORICA - (Bookseller catalogue) :
Reference : 23053
.: 2. Leipzig, Gustav Fock, 1890, in-8°, 287 pp, half vellum. (Bookdealer's catalogue on German history, with a very large collection of dissertations).
Partitions sur Paris Paname Demets E. 1910 approx.
Très bon état Grand format Piano
Partitions sur le Vin,Partitions sur les Fêtes religieuses Demets E. 1910 approx.
Très bon état Grand format Piano
Cph., 1963. 4to. 316 pp. Richly textillustrated. (Diss.).
PARIS, BOULEVARD MONTMARTRE. 1896. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. Paginé de 799 à 814. Ce fascicule ne contient pas d'illustration. Une page photocopiée. Livré sans couverture.. . . . Classification Dewey : 70.4-Journalisme, chronique
Tome cent unième - dix-huitième année Classification Dewey : 70.4-Journalisme, chronique
PARIS, BOULEVARD MONTMARTRE. 1897. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. Paginé de 617 à 632 . Ce fascicule ne contient pas d'illustration. Une page photocopiée. Livré sans couverture.. . . . Classification Dewey : 70.4-Journalisme, chronique
Tome cent huitième. Dix-neuvième année Classification Dewey : 70.4-Journalisme, chronique
BALTIC RECORDS. non daté. In-12. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. Pochette en couleurs, disque en allemand.. . . . Classification : 410-33 Tours
Disque n° TST 75 365 Classification : 410-33 Tours
Philipp Reclam Jun.. 1944. In-16. Broché. Bon état, Couv. convenable, Coiffe en pied abîmée, Intérieur frais. 75 pages. Ouvrage en allemand, caractères gothiques.. . . . Classification Dewey : 430-Langues germaniques. Allemand
Classification Dewey : 430-Langues germaniques. Allemand
1916 Hamburg, Glogau Reliure demi cuir à coins, titre doré sur le dos, 184p, in-8. Très bon état.
En allemand. Herausgegeben von Aline Bußmann.
Phone number : 04 76 97 79 28
Société nouvelle d'éditions musicales. début XXème. In-4. En feuillets. Bon état, Tâchée, Dos satisfaisant, Quelques rousseurs. 7 pages. Gravure couleur de S. Dola en couverture.. . . . Classification Dewey : 780.26-Partitions
P.D. 3287. Sur les motifs de Claude Terrasse. Partitions pour piano. Classification Dewey : 780.26-Partitions