Mustafa Korkmaz

E-mail

korkmaz@metu.edu.tr

Department

Department of Mathematics

ORCID

0000-0002-2731-7097

Scopus Author ID

36059157800

Web of Science Researcher ID

ABA-3419-2020

Species on the move: Impacts of climate change on the spatial range of endemic fishes of the eco-sensitive semi-arid area of the Arabian Peninsula Masoumi, Amir Hassan; Esmaeili, Hamid Reza; Khosravi, Rasoul; Gholamhosseini, Ali; Korkmaz, Mustafa; Jeppesen, Erik (2024-10-15) Climate change is one of the most significant challenges worldwide in the Anthropocene, and it is predicted to importantly affect biological diversity, especially in freshwaters. Freshwater fishes are facing considerable g...
GEOGRAPHY OF SYMPLECTIC LEFSCHETZ FIBRATIONS AND RATIONAL BLOWDOWNS Baykur, R. Inanç; Korkmaz, Mustafa; Simone, Jonathan (2024-10-01) We produce simply-connected, minimal, symplectic Lefschetz fibrations realizing all the lattice points in the symplectic geography plane below the Noether line. This provides a symplectic extension of the classical works p...
Geography of surface bundles over surfaces Baykur, R. İ. Nanç; Korkmaz, Mustafa (2024-01-01) We construct symplectic surface bundles over surfaces with positive signatures for all but 19 possible pairs of fiber and base genera. Meanwhile, we determine the commutator lengths of a few new mapping classes.
Land-use and Fish Condition Changes for Over a Decade on Konya Closed Basin, are External Anomalies Affecting the Fish Condition? Korkmaz, Mustafa; Mangit, Fatih; Yerli, Sedat (2023-09-01) Anthropogenic pressures on freshwater ecosystems are growing and pose serious threats to endemic fish species. This study aimed to identify the effects of anthropogenic pressures on an endangered species, Pseudophoxinus cr...
Effects of Climate Change on the Habitat Suitability and Distribution of Endemic Freshwater Fish Species in Semi-Arid Central Anatolian Ecoregion in Türkiye Korkmaz, Mustafa; MANGIT, FATİH; Dumlupınar, İlayda; Çolak, Mehmet Arda; Akpınar, Mustafa Berkay; Koru, Meltem; Pacheco, Juan Pablo; Ramírez-García, Arely; Yılmaz, Gültekin; Amorim, Cihelio Alves; Özgencil, İbrahim Kaan; İnnal, Deniz; Yerli, Sedat Vahdet; Özkan, Korhan; Akyürek, Sevda Zuhal; Beklioğlu, Meryem; Jeppesen, Erik (2023-04-01) Climate change is affecting freshwater ecosystems globally, particularly those in semi-arid and arid regions. The Central Anatolian Ecoregion (CAE) in Türkiye has a semi-arid climate and is home to numerous endemic fish sp...
Decadal changes in size, salinity, waterbirds, and fish in lakes of the Konya Closed Basin, Turkey, associated with climate change and increasing water abstraction for agriculture Yilmaz, Gultekin; Colak, Mehmet Arda; Özgencil, İbrahim Kaan; Metin, Melisa; Korkmaz, Mustafa; Ertugrul, Serhat; Soyluer, Melisa; Bucak, Tuba; Tavsanoglu, U. Nihan; Özkan, Korhan; Akyürek, Sevda Zuhal; Beklioğlu, Meryem; Jeppesen, Erik (2021-08-09) The Konya Closed Basin (KCB) in Turkey has a cold semiarid to warm Mediterranean climate and hosts the largest Turkish freshwater lake, Lake Beysehir, and the iconic saline Lake Tuz. Using published as well as our own grou...
The mapping class group is generated by two commutators Baykur, R. Inanc; Korkmaz, Mustafa (2021-05-01) We show that the mapping class group of any closed connected orientable surface of genus at least five is generated by only two commutators, and if the genus is three or four, by three commutators. (C) 2021 Elsevier Inc. A...
Low-slope Lefschetz fibrations Çengel, Adalet; Korkmaz, Mustafa (2021-01-01) For any g ≥ 3, we construct genus-g Lefschetz fibrations over the two-sphere whose slopes are arbitrarily close to 2. The total spaces of the Lefschetz fibrations can be chosen to be minimal and simply connected. It is als...
Finite rigid sets in curve complexes of nonorientable surfaces Ilbira, Sabahattin; Korkmaz, Mustafa (Springer Science and Business Media LLC, 2020-06-01) A rigid set in a curve complex of a surface is a subcomplex such that every locally injective simplicial map from the set into the curve complex is induced by a homeomorphism of the surface. In this paper, we find finite r...
Mapping class group is generated by three involutions Korkmaz, Mustafa (2020-01-01) We prove that the mapping class group of a closed connected orientable surface of genus at least eight is generated by three involutions.

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