Construction of universal fibre bundles.

Date

1973

Author

Özkaya, Birsen

Metadata

Show full item record

Item Usage Stats

65
views

0
downloads

URI

https://hdl.handle.net/11511/3063

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Construction of surface bundles with nonzero signature. Arıkan, Mehmet Fırat; Önder, Turgut; Department of Mathematics (2002)
Construction of quasi-cyclic self-dual codes Çomak, Pınar; Özbudak, Ferruh; Kim, Jon-Lark; Department of Cryptography (2013) Quasi-cyclic and self-dual codes are interesting classes of linear codes. Quasi-cyclic codes are linear codes which takes maximum possible value of minimum distance among the codes with the same length and same dimension. Another class of interesting linear codes is the self-dual codes. Self-dual codes have close connections with group theory, lattice theory and design theory. There has been an active research on the classi fication of self-dual codes over fi nite fi elds and over rings. We study on constru...
Construction of self dual codes from graphs Fellah, Nazahet; Guenda, Kenza; Özbudak, Ferruh; Seneviratne, Padmapani (2022-07-01) In this work we define and study binary codes C-q,C-k and (C-q,C-k) over bar obtained from neighbor- hood designs of Paley-type bipartite graphs P(q, k) and their complements, respectively for q an odd prime. We prove that for some values of q and k the codes C-q,C-k are self-dual and the codes (C-q,C-k) over bar are self-orthogonal. Most of these codes tend to be with optimal or near optimal parameters. Next, we extend the codes C(q,k )to get doubly even self dual codes and find that most of these codes ar...
Construction of cryptographically strong boolean functions well suited for symmetric cryptosystems Ahmed Khan, Mansoor; Özbudak, Ferruh; Department of Cryptography (2013) Boolean functions are amongst the vital ingredients of any symmetric cryptosystem in order to implement principles of confusion and di usion. These are utilized as non-linear filtering functions or combiner functions in LFSR-based stream ciphers and as s-box component functions or non-linear encryption functions in Fiestel structure based block ciphers. Consequently, the cryptographic properties of Boolean functions are amongst the main contributors to the strength of these ciphers against cryptanalysis. Th...
Analysis of an auomobile structure by finite element method. Özgür, Mehmet Bülent; Department of Mechanical Engineering (1978)

Citation Formats

B. Özkaya, “Construction of universal fibre bundles.,” Middle East Technical University, 1973.