Karol Borsuk (22 results)

Hardcover. Condition: Fair. Unbekannte Unterschrift / Widmung; Leichte Gebrauchsspuren; Leichte Verschmutzung / Farbtonveränderung; Starke Gebrauchsspuren.

Condition: Very Good. 447 pp., Paperback, wear to cover, else very good. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.…

Condition: Very Good. 363 pp., Hardcover, very good. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.

291 S./pp., Originalleineneinband (publisher's cloth binding), gutes Exemplar (fine), English translation of Karol Borsuk, Theory of retracts, Warszawa 1967. Sprache: russisch.

Hardcover. Condition: Fair. Dust Jacket Condition: Poor. an old used book in Polish; practice your math in Polish; 463 rather clean and yellowing pages; hard gray linen covers with corner wear; with a poor jacket; I ship anywhere.

Paperback. Condition: Brand New. revised edition. 444 pages. 9.25x6.00x1.00 inches. In Stock.

Hardcover. Condition: Gut. Ex-library with stamp and library-signature. GOOD condition, some traces of use. Ancien Exemplaire de bibliothèque avec signature et cachet. BON état, quelques traces d'usure. Ehem. Bibliotheksexemplar mit Signatur und Stempel. GUTER Zustand, ein paar Gebrauchsspuren. 54 BOR Sprache: Englisch Gewicht in Gramm: 550.…

Hardcover. Condition: Near Fine. Dust Jacket Condition: Very Good. 1st Edition. With previous owner's name on the front paste down, otherwise a near fine hardcover first edition copy in a VG mylar protected DJ, pale gray spine. Printed DJ, 251 pages with index being an outline of the theory of retracts, which is a chapter of topology related to both principal branches: set-theoretic topology and algebraic topology.…

Condition: Very Good. 251 pp., hardcover, previous name to front pastedown else very good (lacks dust jacket). - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country. …

Hardcover. Condition: Sehr gut. Schutzumschlag. Transl by Erwin Marquit. Revised English Translation. Amsterdam, North Holland 1960. gr.8°. 327 figs. XIV, 444 p. OCloth. with dust jacket. (dust jacket slightly damaged, top-edge slightly stained).

Hardcover. Condition: Very Good. Book is in great condition. Some noticeable wear on the dust jacket and previous owner inscribed name on dust jacket cover and inside of book. All content pages are unmarked and clean! 100% of proceeds go towards promoting literacy in under-served areas of the world.

Condition: New.

Condition: New.

Hard Cover. Condition: Near Fine. Dust Jacket Condition: Very Good. A clean, unmarked book with a tight binding. Previous owner's name inside. Light wear and discoloration to dust jacket. 252 pages.

Hardcover. Condition: Very Good. 8vo (24.8 cm), 251 pp. Publisher's cloth and dust jacket (dj slightly frayed at extremities and dusted, previous owner name stamped top of the front cover). Monografie Matematyczne, vol. 44. The aim of the book was to provide an overview of the theory of retracts, a significant chapter in topology that intersects with both set-theoretic topology and algebraic topology.…

Hardcover. Condition: Near Fine. No Jacket. 8vo (24.8 cm), 379 pp. Publisher's cloth. Monografie Matematyczne, vol. 59. The aim of the theory of shape is to classify the spaces from the point of view of their most important global topological properties. Included chapters on Weak an strong fundamental sequences, W-shapes and S-shapes, Movable spaces, Extension W-sequences and of S-sequences, Shapes of compacta, FAR-spaces and FANR-spaces, ANR-sequences and theory of shape, On complements of compacta lying in Q or in En, Positions of sets in spaces. Chapters 12 contains a survey of various results and problems of shape theory.…

Hardcover. Condition: Gut. 609 S. Ehem. Bibliotheksexemplar mit Signatur und Stempel. GUTER Zustand, ein paar Gebrauchsspuren. Ex-library with stamp and library-signature. GOOD condition, some traces of use. M15364 8301071699 Sprache: Englisch Gewicht in Gramm: 1050.

Hard Cover. Condition: Fine-. Dust Jacket Condition: No Dust Jacket Present. 444 pages. FINE- HARDCOVER Size: 8vo - over 7¾" - 9¾" tall.

Paperback. Condition: Good. Paperback Small Quarto. wraps, 48 pp, text in English, cover soiled and stained, edges of cover lightly frayed Standard shipping (no tracking or insurance) / Priority (with tracking) / Custom quote for large or heavy orders.

Hardcover. Condition: Very Good. 2 volumes 8vo (24.5 cm), frontispiece with the author's photograph, , XXIV, 656 pp; VIII, PP. 657-1358. Publisher's cloth and dust jackets (dj slightly frayed at extremities and rubbed). Karol Borsuk (1905-1982) was a notable Polish mathematician renowned for his contributions to topology, alongside significant results in functional analysis. His profound ideas and the depth of the problems he tackled served as a wellspring of inspiration for research both in Poland and abroad for decades. This selection of his works, curated by the author in 1980, comprises the most significant papers reflecting Borsuk's diverse interests. The topics covered include Cartesian and symmetric products, extending maps, fixed and antipodal points, functional spaces and their applications, metric properties, polyhedra, spaces satisfying special conditions, the theory of position, retracts, and the theory of shape. Preceding the papers is a biographical article providing insights into Borsuk's life, a comprehensive survey of his scientific contributions, and a complete list of his publications.…

Hardcover. Condition: Good. Dust Jacket Condition: Good-. 1st Edition. Cloth hardcover, French & Polish with some German, 319 pages, NOT ex-library. No ISBN. Age-toned, clean interior with unmarked text, free of inscriptions and stamps, firmly bound. A tiny corner crease on a portion of leaves. Dusty upper outer page edges; faded upper & lower spine edges. Edgeworn dust jacket with short tears and areas of loss. Essential mathematical and philosophical papers of Zygmunt Janiszewski (1888-1920), a foundational figure of the Polish School of Mathematics and the visionary founder of the journal Fundamenta Mathematicae. -- This volume collects the chosen works of Zygmunt Janiszewski , organized into two main sections. The first part contains his core mathematical papers, including his doctoral thesis on irreducible continua between two points, along with seminal works on general plane curves, Cantorian lines, cuts of the plane, and a collaborative paper with Kuratowski on indecomposable continua. The second part reveals his contributions to didactics and philosophy, with writings on the nature of topology and on realism and idealism in mathematics. Crucially, this edition provides French translations of works originally published only in Polish, making his complete thought accessible to a wider international audience for the first time. -- This is a vital historical document on the genesis of the Warsaw School of Mathematics. Janiszewski's foundational research on continuum theory and the topology of the plane, including theorems that still bear his name, remains fundamental to the field. The inclusion of his philosophical writings provides rare insight into the intellectual currents that shaped modern topology, making this an indispensable primary source for topologists, historians of mathematics, and anyone studying the formation of major scientific schools in the 20th century. -- "Janiszewski's life was cut short by the influenza pandemic of 1918-19, at Lwow [Lviv], on 3 January 1920, at age 31. He willed his body for medical research, and his cranium for craniological study, desiring to be 'useful after his death'." -- Contents: Zygmunt Janiszewski / Bronislaw Knaster; Bibliographie des travaux de Zygmunt Janiszewski; Avertissement; I Partie Travaux de mathématiques -- Contribution à la géométrie des courbes planes générales; Sur la géométrie des lignes cantoriennes; Sur les continus irréductibles entre deux points (Note); Sur les continus irréductibles entre deux points (Thèse); Über die Begriffe "Linie" und "Fläche"; Démonstration d'une propriété des continus irréductibles entre deux points; O rozcinaniu plaszczyzny przez kontinua; Sur les coupures du plan faites par des continus (résumé); Sur les continus indécomposables (travail commun avec Kuratowski); II Partie Travaux de didactique et de philosophie -- Wstep ogolny; Introduction générale; Topologja; Topologie; Zakonczenie; Conclusion; O realizmie i idealizmie w matematyce; Sur le réalisme et l'idéalisme en mathématiques. …

Hardcover. Condition: Good. Scarce oversized cloth hardcover, li [51] + 609 pages, NOT ex-library. Primarily in French (40 papers), 8 papers in English, 1 in German. All introductory matters in English. Weight over 1kg. Age-spotted outer page and board edges, tiny creases in page corners. Interior is clean, untanned, with unmarked text, free of inscriptions and stamps; good secure binding. No dust jacket. -- This volume presents a curated collection of the most significant research papers by Kazimierz Kuratowski, a leading figure of the Warsaw School of Mathematics and one of the 20th century's most influential topologists. The selected works showcase his foundational contributions to the fields of point-set topology and descriptive set theory. The papers cover his key results, including his work on the closure axioms, the Kuratowski-Zorn lemma, and the characterization of planar graphs (Kuratowski's theorem). Edited by his renowned students Karol Borsuk and Ryszard Engelking, this volume serves as an essential resource, making the seminal works of a mathematical master accessible to researchers and students in topology and the foundations of mathematics. -- Kazimierz Kuratowski (1896-1980) was a Polish mathematician and logician. He was one of the leading representatives of the Warsaw School of Mathematics. His main contributions to mathematics include: - a characterization of Hausdorff spaces which are now called Kuratowski closure axioms; - proof of the Kuratowski-Zorn lemma; - in graph theory, the characterization of planar graphs now known as Kuratowski's theorem; - identification of the ordered pair (x,y) with the set {{x},{x,y}}; - introduction of the Tarski-Kuratowski algorithm; - Kuratowski's closure-complement problem; - Kuratowski's free set theorem; - Kuratowski convergence of subsets of metric spaces; - the Kuratowski, Ryll-Nardzewski measurable selection theorem; Kuratowski's post-war works were mainly focused on three strands: development of homotopy in continuous functions; construction of connected space theory in higher dimensions; uniform depiction of cutting Euclidean spaces by any of its subsets, based on the properties of continuous transformations of these sets.…