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Matematiksever ve Matematikçi Arkadaslar,<br>
<br>
MD'nin yeni sayisi matbaaya gitti. En fazla iki hafta icinde elinize
ulasir diye umut ediyorum.<br>
<br>
Artik Yaysat'tan ayriliyoruz. Bundan boyle Turkuvaz Dagitim'la
calisacagiz. Sonuc: MD'yi artik Sabah grubunun gazetelerini satan
bayilerden alabileceksiniz. <br>
Ayrica dergimizi bircok kitapcida ve Migros, Tansas ve D&R gibi
populer magazalarda bulabileceksiniz.<br>
MD'yi satan bayi, kitapci ve magaza listesini internet sitemizde bugun
yarin yayimlayacagiz.<br>
<br>
Ama en kolayi dergiye abone olmaktir elbette:
<a class="moz-txt-link-freetext" href="http://www.matematikdunyasi.org/abonelik/">http://www.matematikdunyasi.org/abonelik/</a> adresinde her turlu abonelik
bilgisi olmali.<br>
<br>
Manevi getirisinden baska bir getirisi olmayan metalik abonelikler
(bronzdan platine, 25, 50, 75, 100 TL) sayesinde 112 sayfalik
dergimizin fiyatini hala daha 5 TL'de tutabiliyoruz. Bugune kadar
metalik aboneliklerden 11.000 TL gelir elde ettik. Bir yilda basilan MD
basina 19 kurustan az ama ise yariyor. MD'ye destek veren arkadaslara
genclerimiz adina cok tesekkur ederim. Adlarini dergide ve internet
sayfamizda (<a class="moz-txt-link-freetext" href="http://www.matematikdunyasi.org/destekcilerimiz.php">http://www.matematikdunyasi.org/destekcilerimiz.php</a>)
bulabilirsiniz. Yoksulluk sinirinda olmayanlarinizi da destekcilerimiz
arasinda gorebilmek umuduyla... <br>
<br>
Aidatlarini odeyen TMD uyelerine MD'yi ucretsiz yolluyoruz. TMD
uyelerinin dergiye ayrica abone olmalarinda ben sahsen bir sakinca
gormuyorum!<br>
<br>
Derginin kar amaci gutmedigini, zorlukla ciktigini ve bir asistani ve
bir sekreteri olmak uzere hicbir calisaninin ucret almadigini da bu
vesileyle bildiririm.<br>
<br>
Icerikten sozedeyim:<br>
<br>
KAPAK KONUSU: Kapak konumuz analiz hala, ama yogunlukla fonksiyonel
analiz. Ozellikle Stone-Weierstrass Teoremi'ni kanitlamayi amacladik:
Surekli fonksiyonlara polinomlarla yaklasilabilir, en azindan tikiz bir
kume uzerinde, ustelik yakinsama duzgundur. Herhalde fonksiyonel
analizin en cok uygulama alani bulan sonuclarindan biridir bu teorem.<br>
Stone-Weierstrass Teoremi'ni kanitlayip da Bernstein polinomlarindan
sozetmemek olmazdi: Bernstein polinomlari, surekli fonksiyonlara duzgun
yakinsayan somut polinomlardir, yani Stone-Weierstrass Teoremi'nin
uygulanabilirligini saglar.<br>
Stone-Weierstrass'i kanitlamak icin baska sonuclar da kanitlamak
zorunda kaldik: Abel Yakinsaklik Teoremi, genellestirilmis binom
acilimi ve Dini Teoremi. Ama bu sonuclar kendi baslarina da degerlidir.<br>
Bunun disinda kapak konumuzda gizemli Cantor kümesini, Baire Kategori
Teoremi'ni ve Urysohn Onsavi'ni konu ettik.<br>
Gordugunuz gibi oldukca yogun bir sayi.<br>
<br>
Bugune kadar oldukca ileri seviyede analizi turev ve integralsiz
isledik. Boylece analizin turev ve integralden ibaret olmadigini da ele
gune gostermis olduk.<br>
Ama turev ve integralsiz de her sye yapilamaz... Bir sonraki sayinin
kapak konusunda turevi isleyecegiz. Nihayet!
Liselilerin, hatta ortaokullarin anlayabilecegi bir dilde olmasina
ozellikle ozen gosterecegiz. Bundan boyle kimsenin "ben turevi
anlayamiyorum" deme hakki olmayacak!<br>
<br>
Analizden sonra (3-4 sayi sonra herhalde) soyut cebire ve lineer cebire
el atacagiz. Boylece Turkiye'nin Matematik Kutuphanesi matematigi ta en
basindan ele alip derinlerine inen bir yapita sahip olacak. Pedagojiye
verdigimiz onem Bourbaki'ye olan ustunlugumuzdur!<br>
<br>
CEMAL KOC: Cemal Koc hocamizi beklenmedik bir anda kaybettik. Cemal
Koc, calistigi her kurumda, yasaminin her asamasinda matematikte ve
matematik egitiminde onemli katkilari olmus, her zaman ve her kosulda
matematige yenilikler getirmis degerli bir arkadasimizdi. Ornegin MD
fikri ilk olarak kendisinden cikmistir. Yazokullari, seminerler,
Antalya Cebir Gunleri, liselerarasi yarismalar, Turkiye'de matematik
namina ne yapilmissa nerdeyse hepsinde buyuk katkisi ve emegi vardir.
12 Eylul yonetimi Cemal Hocayi universiteden atarak ne menem bir
yonetim oldugunu bir kez daha gostermistir. Yakin is arkadaslari Timur
Karacay ve Tosun Terzioglu, ogrencileri sayilabilecek Songul Esin ve
Muge Kanuni ve daha bircok kisi Cemal Koc'u yazilariyla andilar. 10
sayfa ayirdik. Yetmedi. Gelecek sayimizda Cemal Hocamiza daha da yer
verecegiz. Hepimize hakkini helal etsin, topragi bol olsun.<br>
<br>
GEOMETRI. Mustafa Yagci hocamiz gene is basinda ve gene harikalar
yaratiyor. Mustafa Hocamizin yazilarini kitaplastirdigimizda muhtesem
bir yapit ortaya cikacak. Oklid geometrisi bir inciye kavusacak.<br>
<br>
ASTRONOMI. Gecen yil UNESCO tarafindan "dunya astronomi yili" ilan
edilmisti. Bir yil gecikmeyle de olsa kutlamaya Ali Alpar'in yazisiyla
katildik. Ali Alpar Galile'nin cag acan kitabini tanitiyor.<br>
<br>
Bu sayinin yazilarinin listesini asagida bulabilirsiniz. Ayni liste
ekte de var.<br>
<br>
En guzel gunler dileyerek,<br>
<br>
Ali Nesin (<a class="moz-txt-link-abbreviated" href="http://www.matematikdunyasi.org">www.matematikdunyasi.org</a>)<br>
<br>
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<table style="border-collapse: collapse; width: 545pt;" border="0"
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<col style="width: 90pt;" width="120"> <col style="width: 317pt;"
width="423"> <col style="width: 101pt;" width="134"> <col
style="width: 37pt;" width="49"> <tbody>
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<td class="xl65" style="height: 15pt; width: 90pt;" height="20"
width="120">Bölüm</td>
<td class="xl65" style="border-left: medium none; width: 317pt;"
width="423">Başlık</td>
<td class="xl65" style="border-left: medium none; width: 101pt;"
width="134">Yazar</td>
<td class="xl65" style="border-left: medium none; width: 37pt;"
width="49">Sayfa</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Giriş</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Giriş Yazısı</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Ali Nesin</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">1</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Künye +
İçindekiler</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">1</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Kısa Kısa…</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Şafak Alpay</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Okurlardan</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Matematik Köyü
Yaz programı</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Destekçilerimiz</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">1</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Basında
Matematik</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">9</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="height: 15pt;" height="20">Kapak Konusu</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Cantor
Kümesi</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">6</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Baire Kategori
Teoremi</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Uğur Doğan</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">5</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Fonksiyon
Kümeleri, Noktasal ve Düzgün Yakınsaklık</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">9</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Abel
Yakınsaklık Teoremi</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Genelleştirilmiş
Binom açılımı</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">5</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Dini Teoremi ve
Bir Uygulaması</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Stone-Weierstrass
Teoremi</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Bernstein
Polinomları</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Urysohn Önsavı</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">3</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl69" style="border-top: medium none;">Bir Düzeltme</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">1</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="height: 15pt;" height="20">Kaybettiklerimiz</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Cemal Koç</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">15</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Geometri</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Simedyanlar
II</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Mustafa
Yağcı</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">10</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Popüler</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Satranç
Tahtasını İki Eş Parçaya Bölmek</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Sayar Bayar</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Eğitim</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Elipsin
Çevre Uzunluğunun En Kısa Olduğu Ülke</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">İlham Aliyev</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Astronomi</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">"İki Büyük
Dünya Sistemi hakkında Diyalog" Galileo Galilei</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Ali Alpar</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">7</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="border-top: medium none; height: 15pt;"
height="20">Sorular</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Problemler
ve Çözümleri</td>
<td class="xl68" style="border-top: medium none;">Refail Alizade</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Kümeler Kuramı
Final Sınavı, Yanıtlar</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl67" style="height: 15pt;" height="20">Çeşitli</td>
<td class="xl69"
style="border-top: medium none; border-left: medium none;">Zekâ
Soruları, Eureka</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Haydar Göral</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Beyincik</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Haydar Göral</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">2</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Satranç Köşesi:
Rok Yapma Üzerine II</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Kıvanç Çefle</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl70" style="border-top: medium none;">Matrakmatik</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;">Ergun
Akleman</td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"
align="right">1</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl66" style="height: 15pt;" height="20"><br>
</td>
<td class="xl67" style="border-top: medium none;"> </td>
<td class="xl67"
style="border-top: medium none; border-left: medium none;"> </td>
<td class="xl65"
style="border-top: medium none; border-left: medium none;"
align="right">112</td>
</tr>
</tbody>
</table>
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