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Draft:Ahmet Dervisoglu

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  • Comment: Rewritten from scratch with inline citations to independent sources. Notability: WP:NPROF#C2 – recipient of the 1986 METU Parlar Foundation Science Award (foundation's winners list; the award's own article, Parlar Foundation Science Award, lists him among recipients). Significant independent coverage: a 70-page chapter in İTÜ'nün Çınarları (TMMOB Chamber of Electrical Engineers, 2013, ISBN 978-605-01-0560-5, pp. 221–293); a 312-page book about him by Doğan Cüceloğlu (Remzi Kitabevi, 2016, ISBN 978-975-14-1721-3); a magazine profile by science historian Osman Bahadır (Kaynak Elektrik no. 339, 2017); and Yarman & Göknar, IEEE Circuits and Systems Magazine 21(3), 2021, doi:10.1109/MCAS.2021.3092590, which names him among the founders of circuits-and-systems research in Turkey. Obituaries from ITU, the ITU Foundation, TESİD and several newspapers cover his death in December 2025. The Google Scholar profile linked in the earlier version belonged to a different person and has been removed. The two edits on 6 September were mine, made while logged out. I am a former student of the subject with no financial connection. ~2026-48545-37 (talk) 17:15, 6 September 2026 (UTC)


Ahmet Dervişoğlu
Dervişoğlu in later life
Born1935
Akçapınar, Gönen, Balıkesir Province, Turkey
Died14 December 2025 (aged 89–90)
Alma materIstanbul Technical University (BSc, 1959)
University of Illinois Urbana-Champaign (PhD, 1964)
Known forState equations of active RLC networks; degenerate networks
AwardsParlar Foundation Science Award (1986)
Scientific career
FieldsElectrical engineering, circuit theory
WorkplacesIstanbul Technical University
Yeditepe University
Thesis Realization of the A-matrix of half-degenerate RLC networks  (1964)

Ahmet Dervişoğlu (1935 – 14 December 2025) was a Turkish electrical engineer and academic. He spent most of his career at Istanbul Technical University (ITU), where he was a professor working on circuit theory and served as dean of the Faculty of Electrical and Electronics Engineering from 1987 to 1996.[1][2] His research dealt with the formulation of state equations for active RLC networks and with degenerate networks, including a 1975 paper written with Charles A. Desoer.[3] He received the Parlar Foundation Science Award in 1986,[4] and a 2021 survey in IEEE Circuits and Systems Magazine counted him among the researchers who started advanced circuits-and-systems research in Turkey.[5]

Early life and education

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Dervişoğlu was born in 1935 in Akçapınar, a village in the Gönen district of Balıkesir Province.[1][6] He finished primary school in Gönen in 1947, passed the state examination for a free boarding place, and continued his schooling in İzmir, graduating from Buca Middle School in 1950 and from İzmir Atatürk High School in 1954.[1] The same year he entered the Faculty of Electrical Engineering at Istanbul Technical University. He received the university's Abdurrahman Ağaoğlu Award, given to ITU students, in 1957, and graduated from the weak-current (electronics) branch in 1959.[1][7]

After graduation he joined the faculty's telecommunications chair as an assistant.[1][8] In 1961 he spent three months at Philips in the Netherlands.[1] In February 1962 he went to the University of Illinois Urbana-Champaign for doctoral study, where he worked at the Coordinated Science Laboratory.[1][9] He completed his PhD in 1964 with a dissertation on the realization of the A-matrix of half-degenerate RLC networks,[10] and stayed on as a postdoctoral researcher until February 1965, when he returned to ITU.[1][11]

Career

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Dervişoğlu began teaching the introductory circuits course at ITU in the autumn of 1966. According to the science historian Osman Bahadır, he was the first at the faculty to run a graded weekly homework system for classes of more than a hundred students, and he belonged to the generation of staff, alongside Mithat İdemen and Duran Leblebici, that followed the faculty's founding professors.[6] He was promoted to associate professor in 1969 and to full professor in 1975.[1][7]

He held a Fulbright visiting scholar award at the University of California, Berkeley in 1973–74,[12] and returned to Berkeley as a visiting faculty member in 1980–82 and for a short stay in early 2000.[1][11] His time at Berkeley led to joint papers with Charles A. Desoer and Leon O. Chua.[3][13] Besides ITU, he taught circuit theory at Karadeniz Technical University (1970–76) and Boğaziçi University (1976–99), and also lectured or supervised theses at Middle East Technical University, Hacettepe University, Uludağ University and Işık University.[1][11]

Dervişoğlu chaired ITU's Department of Electronics and Communication Engineering from 1985 to 1987 and was dean of the Faculty of Electrical and Electronics Engineering from 1987 to 1996.[1][14][2] During his deanship the faculty revised its curricula with industry input, introduced student representation and changed its grading system.[8] He retired from ITU in September 2000 and then taught in the Department of Electrical and Electronics Engineering at Yeditepe University until January 2013.[1][11] He was a member of the board of trustees of the ITU Foundation.[2] In 2016 he gave a keynote address at the ELECO electrical and electronics engineering conference in Bursa.[11]

Research

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Dervişoğlu's early work, begun in his doctoral research at Illinois, concerned the existence and construction of the state matrix (the "A-matrix" of Bashkow) for active RLC networks.[9][15][16] His 1971 paper in the IEEE Transactions on Circuit Theory gave a method for writing the state equations of active RLC networks together with their initial values,[17] and a 1974 paper with Orhan Tosun extended the formulation.[18] With Charles A. Desoer he published "Degenerate networks and minimal differential equations" (1975), which treats networks whose describing equations are not in standard state form.[3] With İzzet Cem Göknar he published an algorithm for testing the controllability and observability of linear time-invariant systems (1977).[19] Later work with Leon O. Chua concerned the modelling of nonlinear devices with frequency-dependent capacitance and inductance.[13] From the 1980s his publications, mainly in Turkish, turned to computer-aided circuit analysis and the design of sequential logic circuits, with later conference papers at the European Conference on Circuit Theory and Design in 1997 and 1999.[20][1]

Yarman and Göknar, writing in IEEE Circuits and Systems Magazine in 2021, described Tarık Özker of ITU as the father of modern circuit theory in Turkey and listed Dervişoğlu first among Özker's successors; they also named him, with Özker, Göknar, Yarman and Vedat Tavşanoğlu, as one of the people who started advanced research in circuits and systems in the country.[5]

Awards and honours

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In 1986 the Middle East Technical University Prof. Dr. Mustafa N. Parlar Education and Research Foundation gave Dervişoğlu its Science Award.[4][11] On 29 January 2013 the Turkish Electronics Industrialists' Association (TESİD) presented him with its Outstanding Service Award for his scientific work and for the engineers he had trained.[21][1]

He is the subject of a chapter of more than seventy pages in İTÜ'nün Çınarları (2013), a collection of interviews with senior ITU professors published by the Chamber of Electrical Engineers of Turkey,[1] and of Derviş'in Aklı (2016), a book-length series of conversations with him by the psychologist Doğan Cüceloğlu, published by Remzi Kitabevi.[22][23]

Personal life and death

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Dervişoğlu was married and had two daughters.[1] His wife, a teacher, was the daughter of Ekrem Orhon, a former mayor of Rize.[24][25] He died on 14 December 2025. His funeral was held in Istanbul and he was buried in the family plot in Akçapınar.[14][25][26]

Selected publications

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  • Dervisoglu, A. (1964). "Bashkow's 'A Matrix for Active RLC Networks'". IEEE Transactions on Circuit Theory. 11 (3): 404–406. doi:10.1109/TCT.1964.1082319.
  • Dervisoglu, A. (1966). "The realization of the A-matrix of a certain class of RLC networks". IEEE Transactions on Circuit Theory. 13 (2): 164–170. doi:10.1109/TCT.1966.1082557.
  • Dervisoglu, A. (1971). "State equations and initial values in active RLC networks". IEEE Transactions on Circuit Theory. 18 (5): 544–547. doi:10.1109/TCT.1971.1083326.
  • Tosun, O.; Dervisoglu, A. (1974). "Formulation of state equations in active RLC networks". IEEE Transactions on Circuits and Systems. 21 (1): 36–38. doi:10.1109/TCS.1974.1083802.
  • Dervisoglu, A.; Desoer, C. A. (1975). "Degenerate networks and minimal differential equations". IEEE Transactions on Circuits and Systems. 22 (10): 769–775. doi:10.1109/TCS.1975.1083978.
  • Goknar, I. C.; Dervisoglu, A. (1977). "An algorithm to determine the controllability and observability of linear, time-invariant systems using zero-state algebraic equations". IEEE Transactions on Automatic Control. 22 (3): 495–498. doi:10.1109/TAC.1977.1101525.
  • Dervişoğlu, A.; Chua, L. O. (1985). "Modelling non-linear devices exhibiting frequency-dependent capacitances and inductances". International Journal of Circuit Theory and Applications. 13 (2): 133–148. doi:10.1002/cta.4490130204.

References

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  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Toker, Ersin, ed. (December 2013). "Prof. Dr. Ahmet Dervişoğlu". İTÜ'nün Çınarları (İkinci Kuşak): Elektrik Elektronik Fakültesi Anılar ve Görüşler-II (1950–1980'li Yıllar) (PDF) (in Turkish). Ankara: TMMOB Elektrik Mühendisleri Odası. pp. 221–293. ISBN 978-605-01-0560-5. Retrieved 6 September 2026.
  2. 1 2 3 "Merhum Prof. Dr. Ahmet Dervişoğlu'nu Saygıyla Anıyoruz" (in Turkish). İTÜ Vakfı. 15 December 2025. Retrieved 6 September 2026.
  3. 1 2 3 Dervisoglu, A.; Desoer, C. A. (1975). "Degenerate networks and minimal differential equations". IEEE Transactions on Circuits and Systems. 22 (10): 769–775. doi:10.1109/TCS.1975.1083978.
  4. 1 2 "1982–2019 Yılı Parlar Ödülleri" (in Turkish). ODTÜ Prof. Dr. Mustafa N. Parlar Eğitim ve Araştırma Vakfı. Retrieved 6 September 2026.
  5. 1 2 Yarman, Binboga Siddik; Göknar, Izzet Cem (2021). "Circuits and Systems in Turkey". IEEE Circuits and Systems Magazine. 21 (3): 94–95. doi:10.1109/MCAS.2021.3092590.
  6. 1 2 Bahadır, Osman (November–December 2017). "Örnek bir bilim insanı: Prof. Dr. Ahmet Dervişoğlu". Kaynak Elektrik (in Turkish). No. 339. p. 52.
  7. 1 2 "Emekli Öğretim Üyeleri" (PDF). İTÜ Elektrik-Elektronik Fakültesi 80. Yıl: Emekli ve Unutulmayanlar (in Turkish). Istanbul Technical University. 2014. Retrieved 6 September 2026.
  8. 1 2 "İTÜ Elektrik-Elektronik Fakültesi eski dekanı Prof. Dr. Ahmet Dervişoğlu hayatını kaybetti". Arı24 (in Turkish). 15 December 2025. Retrieved 6 September 2026.
  9. 1 2 Dervisoglu, A. (July 1963). Bashkow's A Matrix for Active RLC Networks (Report). Report R-175. Coordinated Science Laboratory, University of Illinois.
  10. ↑ Dervisoglu, Ahmet (1964). Realization of the A-matrix of half-degenerate RLC networks (PhD). University of Illinois at Urbana-Champaign. ProQuest 6503567.
  11. 1 2 3 4 5 6 "Prof. Dr. Ahmet Dervişoğlu – Davetli Konuşmacı". ELECO 2016 Elektrik – Elektronik ve Biyomedikal Mühendisliği Konferansı (in Turkish). Retrieved 6 September 2026.
  12. ↑ "Ahmet Dervisoglu". Fulbright Scholar Program. Institute of International Education. Retrieved 6 September 2026.
  13. 1 2 Dervişoğlu, A.; Chua, L. O. (1985). "Modelling non-linear devices exhibiting frequency-dependent capacitances and inductances". International Journal of Circuit Theory and Applications. 13 (2): 133–148. doi:10.1002/cta.4490130204.
  14. 1 2 "Vefat ve Başsağlığı: Prof. Dr. Ahmet Dervişoğlu" (in Turkish). İTÜ Elektronik ve Haberleşme Mühendisliği Bölümü. 14 December 2025. Retrieved 6 September 2026.
  15. ↑ Dervisoglu, A. (1964). "Bashkow's 'A Matrix for Active RLC Networks'". IEEE Transactions on Circuit Theory. 11 (3): 404–406. doi:10.1109/TCT.1964.1082319.
  16. ↑ Dervisoglu, A. (1966). "The realization of the A-matrix of a certain class of RLC networks". IEEE Transactions on Circuit Theory. 13 (2): 164–170. doi:10.1109/TCT.1966.1082557.
  17. ↑ Dervisoglu, A. (1971). "State equations and initial values in active RLC networks". IEEE Transactions on Circuit Theory. 18 (5): 544–547. doi:10.1109/TCT.1971.1083326.
  18. ↑ Tosun, O.; Dervisoglu, A. (1974). "Formulation of state equations in active RLC networks". IEEE Transactions on Circuits and Systems. 21 (1): 36–38. doi:10.1109/TCS.1974.1083802.
  19. ↑ Goknar, I. C.; Dervisoglu, A. (1977). "An algorithm to determine the controllability and observability of linear, time-invariant systems using zero-state algebraic equations". IEEE Transactions on Automatic Control. 22 (3): 495–498. doi:10.1109/TAC.1977.1101525.
  20. ↑ "Yayınlar". Prof. Dr. Ahmet Dervişoğlu (in Turkish). Retrieved 6 September 2026.
  21. ↑ "Araştırmacılar, bir toplumun ışık kaynakları gibidir" (in Turkish). Türk Elektronik Sanayicileri Derneği. 17 December 2025. Retrieved 6 September 2026.
  22. ↑ Cüceloğlu, Doğan (2016). Derviş'in Aklı (in Turkish). Istanbul: Remzi Kitabevi. ISBN 978-975-14-1721-3.
  23. ↑ "Derviş'in Aklı – Doğan Cüceloğlu" (in Turkish). Remzi Kitabevi. Archived from the original on 10 November 2019. Retrieved 6 September 2026.
  24. ↑ Kar, Fatih Sultan (14 December 2025). "Hocaların hocası Dervişoğlu anısına". Rize'nin Sesi (in Turkish). Retrieved 6 September 2026.
  25. 1 2 Yavuz, Ahmet (15 December 2025). "Prof. Dr. Ahmet Dervişoğlu kimdir, kaç yaşında vefat etti, nereli, nerede görev yaptı? İTÜ eski dekanı hayatını kaybetti". Referans Gazetesi (in Turkish). Retrieved 6 September 2026.
  26. ↑ "Kale Grubu ve Bodur ailesi, yakın dostları ünlü bilim insanı Profesör Doktor Ahmet Dervişoğlu için başsağlığı mesajı yayınladı". Patronlar Dünyası (in Turkish). 15 December 2025. Retrieved 6 September 2026.
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