Londreys. 1985. In-8. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 261 pages.. . . . Classification Dewey : 820-Littératures anglaise et anglo-saxonne
Reference : RO40131321
ISBN : 290418418X
Biologie & Science-Fiction. 12 Nouvelles annotées par Isaac Asimov. Classification Dewey : 820-Littératures anglaise et anglo-saxonne
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Berlin, G. Reimer, 1861. 4to. As extracted from ""Journal für die reine und angewandte Mathematik, 59. Band, 1861"". Without backstrip. Fine and clean. [Clebsch:] Pp. 1-62.
First printing of Clebsch's early and founding paper on the symbolic method in invariant theory. The Symbolic method is based on treating the form as if it were a power of a degree one form, which corresponds to embedding a symmetric power of a vector space into the symmetric elements of a tensor product of copies of it.""Clebsch completed the symbolic calculus for forms and invariants created by Aronhold, and henceforth one spoke of the Clebsch-Aronhold symbolic notation. Clebsch’s own contributions in this field of algebraic geometry include the following. With the help of suitable eliminations he determined a surface of order 11n - 24 intersecting a given surface of order n in points where there is a tangent that touches the surface at more than three coinciding points. For a given cubic surface he calculated the tenth-degree equation on the resolution of which the determination of the Sylvester pentahedron of that surface depends. For a plane quartic curve Clebsch found a remarkable invariant that, when it vanishes, makes it possible to write the curve equation as a sum of five fourth-degree powers. At the end of his life Clebsch inaugurated the notion of a ""connex,"" a geometrical object in the plane obtained by setting a form containing both point and line coordinates equal to zero."" (DSB)
Reference : albce642113e7257fbb
Liseikin V., Petrenko V. Adaptive-invariant method of numerical solution of problems with boundary and internal layers. In Russian /Liseykin V., Petrenko V. Adaptivno-invariantnyy metod chislennogo resheniya zadach s pogranichnymi i vnutrennimi sloyami. Novosibirsk Academy of Sciences of the USSR 1989 year 260s. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbce642113e7257fbb.
Reference : albabf4c19e40c53bbe
Springer T. Invariant Theory. In Russian /Springer T. Teoriya invariantov. Series: New in Foreign Science. Mathematics # 24 M The World of 1981. 191s. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbabf4c19e40c53bbe.
Reference : alb06a42427850eca9e
Sachkov Y.L. Manageability and symmetry of invariant systems on LI groups and homogeneous spaces. In Russian /Sachkov Yu.L. Upravlyaemost i simmetrii invariantnykh sistem na gruppakh LI i odnorodnykh prostranstvakh. Series: Mathematics. Applied Mathematics M. Physmatlit 2007. 224s.We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available.SKUalb06a42427850eca9e.
Reference : alb8df7116cf0207bab
Aliyev R.A. Industrial invariant automatic control systems. In Russian /Aliev R.A. Promyshlennye invariantnye sistemy avtomaticheskogo upravleniya. M. Energia 1971. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalb8df7116cf0207bab.