ÀÛ¿ë¼Ò ¼Ò½Ä No.426 (2013.11.27)



À̸§: Javier Parcet

¼Ò¼Ó: ICMAT (Spain)

Á¦¸ñ: Group von Neumann algebras and harmonic analysis

ÀϽÃ: 2013³â 12¿ù 3ÀÏ(È­) 15:00-16:00

Àå¼Ò: 129µ¿ 406È£


À̸§: Javier Parcet

¼Ò¼Ó: ICMAT (Spain)

Á¦¸ñ: Riesz transforms and Hörmander-Mihlin multipliers

ÀϽÃ: 2013³â 12¿ù 4ÀÏ(¼ö) 15:00-16:00

Àå¼Ò: 129µ¿ 406È£


À̸§: Javier Parcet

¼Ò¼Ó: ICMAT (Spain)

Á¦¸ñ: Twisted Hilbert transforms vs Kakeya sets of directions

ÀϽÃ: 2013³â 12¿ù 5ÀÏ(¸ñ) 15:00-16:00

Àå¼Ò: 129µ¿ 406È£


Abstract:

In a series of three lectures I will present an introduction (avoiding proofs) to recent results concerning harmonic analysis in group von Neumann algebras. Some of these results have found applications back in Euclidean harmonic analysis. In the first talk I will recall the definition of group von Neumann algebra (with its corresponding $L_p$ theory) and review the classical results in harmonic analysis that we aim to study in these algebras. The second lecture will be devoted to introduce and study Riesz transforms and smooth Fourier multipliers in group von Neumann algebras. Dimension free estimates and an extension of the Hörmander-Mihlin theorem will be presented. In the last lecture, we will be concerned with $L_p$-summability of Fourier series, which leads us to study (non-smooth) directional Hilbert transforms in this setting. It turns out that there exists a close relation between these operators and Fefferman¡¯s construction in his multiplier theorem for the ball. We will exploit that to characterize the boundedness of these operators for semidirect products (twisted Hilbert transforms). These talks are based on joint work with M. Junge, T. Mei and K. Rogers.



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.425 (2013.11.13)



À̸§: Á¤ÀÇÁø

¼Ò¼Ó: ¾ÆÁÖ´ë

Á¦¸ñ: C*-algebras arising from orbit equivalence, flow equivalence, and other classification problems in symbolic dynamics

ÀϽÃ: 2013³â 11¿ù 15ÀÏ(±Ý) 16:00-17:00

Àå¼Ò: 129µ¿ 406È£

ÃÊ·Ï: Cuntz-Krieger algebras are C*-algebras associated with subshifts of finite type, which are natural classes of symbolic dynamical systems defined by matrices. In 90s, Matsumoto associated to each subshift a C*-algebra which becomes a Cuntz-Krieger if the subshift is of finite type. These C*-algebras give new invariants to shift spaces and are used to characterize several equivalences between subshifts. In this talk, I will introduce basic notions of symbolic dynamics and give several links between the classification problems in symbolic dynamics and isomorphisms of C*-algebras. An application to full groups from dynamical systems will also be given.


À̸§: Benoit Collins

¼Ò¼Ó: AIMR, Tohoku University and University of Ottawa

Á¦¸ñ: Free probability and quantum information theory

ÀϽÃ: 2013³â 11¿ù 21ÀÏ(¸ñ) 15:00-15:55

Àå¼Ò: 27µ¿ 325È£

ÃÊ·Ï: Free probability was introduced in the early eighties by Voiculescu. It was initially a field at the intersection of non-commutative probability theory and operator algebras. Soon it evolved into a very versatile tool with deep connections to random matrix theory, combinatorics, and many applications. Today, we will discuss a recently uncovered application of free probability, to quantum information theory. In particular, we will explain why free probability allows to understand in depth the celebrated random counter-examples to the minimum output entropy additivity problem for quantum channels.



¡Ø 11¿ù 15ÀÏ¿¡´Â ¿©·¯ °¡Áö »çÁ¤À¸·Î ¼¼¹Ì³ª¸¦ ¿ÀÈÄ 4½Ã¿¡ »ó»ê°ü 406È£¿¡¼­ ¿±´Ï´Ù. À̳¯ ¼¼¹Ì³ª ¸¶Ä¡°í ȸ½ÄÀ» ÇÒ ¿¹Á¤ÀÌ´Ï, ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


¡Ø Âü°í»çÇ×: 11¿ù 22ÀÏ(±Ý)¿¡ ¿¹Á¤µÇ¾îÀÖ´ø ¼¼¹Ì³ª´Â ¼ö½Ã ÀԽð¡ ¿­¸®´Â °ü°è·Î ³¯Â¥¸¦ ÇÏ·ç ¾Õ´ç°Ü 11¿ù 21ÀÏ(¸ñ)¿¡ º¯°æµÈ Àå¼Ò 27µ¿ 325È£¿¡¼­ ÁøÇàÇÏ¿À´Ï Âø¿À ¾øÀ¸½Ã±â ¹Ù¶ø´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.424 (2013.11.7)



À̸§: Mahya Ghandehari

¼Ò¼Ó: University of Saskatchewan, Canada

Á¦¸ñ: The Fourier algebra of the Heisenberg group is not weakly amenable.

ÀϽÃ: 2013³â 11¿ù 8ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: A commutative Banach algebra, e.g. the Fourier algebra of a locally compact group, is said to be weakly amenable if it admits no non-zero, continuous derivations into its dual space. Due to the duality between the $L^1$-algebra and the Fourier algebra of a locally compact group, it is natural to suspect that the Fourier algebra of an amenable group is weakly amenable. But in 1994, Johnson constructed a non-zero bounded derivation from the Fourier algebra of the rotation group in 3 dimensions into its dual, which showed that the Fourier algebra of ${\rm SO}_3({\mathbb R})$ is not weakly amenable. Subsequently, this result was extended to any non-Abelian, compact, connected group.

In this talk, we use techniques of non-Abelian harmonic analysis to construct non-zero derivations on the Fourier algebra of the Heisenberg group. This is the first example of a non-AR group with non-weak amenable Fourier algebra which does not contain closed copies of ${\rm SO}_3({\mathbb R})$ or ${\rm SU}_2({\mathbb C})$.

This talk is based on a joint work with Y. Choi.


À̸§: Á¤ÀÇÁø

¼Ò¼Ó: ¾ÆÁÖ´ë

Á¦¸ñ: TBA

ÀϽÃ: 2013³â 11¿ù 15ÀÏ(±Ý) 16:00-17:00

Àå¼Ò: 129µ¿ 406È£


À̸§: Benoit Collins

¼Ò¼Ó: AIMR, Tohoku University and University of Ottawa

Á¦¸ñ: Free probability and quantum information theory

ÀϽÃ: 2013³â 11¿ù 21ÀÏ(¸ñ) 15:00-15:55

Àå¼Ò: 27µ¿ 325È£

ÃÊ·Ï: Free probability was introduced in the early eighties by Voiculescu. It was initially a field at the intersection of non-commutative probability theory and operator algebras. Soon it evolved into a very versatile tool with deep connections to random matrix theory, combinatorics, and many applications. Today, we will discuss a recently uncovered application of free probability, to quantum information theory. In particular, we will explain why free probability allows to understand in depth the celebrated random counter-examples to the minimum output entropy additivity problem for quantum channels.



¡Ø 11¿ù 15ÀÏ¿¡´Â ¿©·¯ °¡Áö »çÁ¤À¸·Î ¼¼¹Ì³ª¸¦ ¿ÀÈÄ 4½Ã¿¡ »ó»ê°ü 406È£¿¡¼­ ¿±´Ï´Ù. À̳¯ ¼¼¹Ì³ª ¸¶Ä¡°í ȸ½ÄÀ» ÇÒ ¿¹Á¤ÀÌ´Ï, ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


¡Ø Âü°í»çÇ×: 11¿ù 22ÀÏ(±Ý)¿¡ ¿¹Á¤µÇ¾îÀÖ´ø ¼¼¹Ì³ª´Â ¼ö½Ã ÀԽð¡ ¿­¸®´Â °ü°è·Î ³¯Â¥¸¦ ÇÏ·ç ¾Õ´ç°Ü 11¿ù 21ÀÏ(¸ñ)¿¡ º¯°æµÈ Àå¼Ò 27µ¿ 325È£¿¡¼­ ÁøÇàÇÏ¿À´Ï Âø¿À ¾øÀ¸½Ã±â ¹Ù¶ø´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.423 (2013.10.29)



À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: Connes' embedding conjecture and its equivalent

ÀϽÃ: 2013³â 10¿ù 31ÀÏ(¸ñ) 16:00-17:00 [¼öÇаú °­¿¬È¸]

Àå¼Ò: 129µ¿ 101È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: An amenable operator algebra which is not a C*-algebra

ÀϽÃ: 2013³â 11¿ù 1ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: The notion of amenability for Banach algebras was introduced by B. E. Johnson in 1970s and has been studied intensively since then. For several natural classes of Banach algebras, the amenability property is known to single out the "good" members of those classes. For example, B. E. Johnson's fundamental observation is that the Banach algebra L_1(G) of locally compact group G is amenable if and only if the group G is amenable. Another example is the celebrated result of Connes and Haagerup which states that a C*-algebra is amenable as a Banach algebra if and only if it is nuclear. It has been asked whether every amenable operator algebra (closed subalgebra of B(H)) is isomorphic to a (necessarily nuclear) C*-algebra. We give a counterexample to this problem. Alas, our exmaple is not separable.


À̸§: Mahya Ghandehari

¼Ò¼Ó: University of Saskatchewan, Canada

Á¦¸ñ: The Fourier algebra of the Heisenberg group is not weakly amenable.

ÀϽÃ: 2013³â 11¿ù 8ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: A commutative Banach algebra, e.g. the Fourier algebra of a locally compact group, is said to be weakly amenable if it admits no non-zero, continuous derivations into its dual space. Due to the duality between the $L^1$-algebra and the Fourier algebra of a locally compact group, it is natural to suspect that the Fourier algebra of an amenable group is weakly amenable. But in 1994, Johnson constructed a non-zero bounded derivation from the Fourier algebra of the rotation group in 3 dimensions into its dual, which showed that the Fourier algebra of ${\rm SO}_3({\mathbb R})$ is not weakly amenable. Subsequently, this result was extended to any non-Abelian, compact, connected group.

In this talk, we use techniques of non-Abelian harmonic analysis to construct non-zero derivations on the Fourier algebra of the Heisenberg group. This is the first example of a non-AR group with non-weak amenable Fourier algebra which does not contain closed copies of ${\rm SO}_3({\mathbb R})$ or ${\rm SU}_2({\mathbb C})$.

This talk is based on a joint work with Y. Choi.


À̸§: Benoit Collins

¼Ò¼Ó: AIMR, Tohoku University and University of Ottawa

Á¦¸ñ: Free probability and quantum information theory

ÀϽÃ: 2013³â 11¿ù 21ÀÏ(¸ñ) 15:00-15:55

Àå¼Ò: 27µ¿ 325È£

ÃÊ·Ï: Free probability was introduced in the early eighties by Voiculescu. It was initially a field at the intersection of non-commutative probability theory and operator algebras. Soon it evolved into a very versatile tool with deep connections to random matrix theory, combinatorics, and many applications. Today, we will discuss a recently uncovered application of free probability, to quantum information theory. In particular, we will explain why free probability allows to understand in depth the celebrated random counter-examples to the minimum output entropy additivity problem for quantum channels.



¡Ø Âü°í»çÇ×: 11¿ù 22ÀÏ(±Ý)¿¡ ¿¹Á¤µÇ¾îÀÖ´ø ¼¼¹Ì³ª´Â ¼ö½Ã ÀԽð¡ ¿­¸®´Â °ü°è·Î ³¯Â¥¸¦ ÇÏ·ç ¾Õ´ç°Ü 11¿ù 21ÀÏ(¸ñ)¿¡ º¯°æµÈ Àå¼Ò 27µ¿ 325È£¿¡¼­ ÁøÇàÇÏ¿À´Ï Âø¿À ¾øÀ¸½Ã±â ¹Ù¶ø´Ï´Ù.



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.422 (2013.10.25)



À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: Connes' embedding conjecture and its equivalent

ÀϽÃ: 2013³â 10¿ù 31ÀÏ(¸ñ) 16:00-17:00 [¼öÇаú °­¿¬È¸]

Àå¼Ò: 129µ¿ 101È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: An amenable operator algebra which is not a C*-algebra

ÀϽÃ: 2013³â 11¿ù 1ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: The notion of amenability for Banach algebras was introduced by B. E. Johnson in 1970s and has been studied intensively since then. For several natural classes of Banach algebras, the amenability property is known to single out the "good" members of those classes. For example, B. E. Johnson's fundamental observation is that the Banach algebra L_1(G) of locally compact group G is amenable if and only if the group G is amenable. Another example is the celebrated result of Connes and Haagerup which states that a C*-algebra is amenable as a Banach algebra if and only if it is nuclear. It has been asked whether every amenable operator algebra (closed subalgebra of B(H)) is isomorphic to a (necessarily nuclear) C*-algebra. We give a counterexample to this problem. Alas, our exmaple is not separable.


À̸§: Mahya Ghandehari

¼Ò¼Ó: University of Saskatchewan, Canada

Á¦¸ñ: The Fourier algebra of the Heisenberg group is not weakly amenable.

ÀϽÃ: 2013³â 11¿ù 8ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: A commutative Banach algebra, e.g. the Fourier algebra of a locally compact group, is said to be weakly amenable if it admits no non-zero, continuous derivations into its dual space. Due to the duality between the $L^1$-algebra and the Fourier algebra of a locally compact group, it is natural to suspect that the Fourier algebra of an amenable group is weakly amenable. But in 1994, Johnson constructed a non-zero bounded derivation from the Fourier algebra of the rotation group in 3 dimensions into its dual, which showed that the Fourier algebra of ${\rm SO}_3({\mathbb R})$ is not weakly amenable. Subsequently, this result was extended to any non-Abelian, compact, connected group.

In this talk, we use techniques of non-Abelian harmonic analysis to construct non-zero derivations on the Fourier algebra of the Heisenberg group. This is the first example of a non-AR group with non-weak amenable Fourier algebra which does not contain closed copies of ${\rm SO}_3({\mathbb R})$ or ${\rm SU}_2({\mathbb C})$.

This talk is based on a joint work with Y. Choi.


À̸§: Benoit Collins

¼Ò¼Ó: AIMR, Tohoku University and University of Ottawa

Á¦¸ñ: Free probability and quantum information theory

ÀϽÃ: 2013³â 11¿ù 22ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: Free probability was introduced in the early eighties by Voiculescu. It was initially a field at the intersection of non-commutative probability theory and operator algebras. Soon it evolved into a very versatile tool with deep connections to random matrix theory, combinatorics, and many applications. Today, we will discuss a recently uncovered application of free probability, to quantum information theory. In particular, we will explain why free probability allows to understand in depth the celebrated random counter-examples to the minimum output entropy additivity problem for quantum channels.



¡Ø À̹ø ±Ý¿äÀÏ(10¿ù 25ÀÏ)¿¡´Â ´ëÇѼöÇÐȸ Çà»ç·Î ÀÎÇÏ¿© ¼¼¹Ì³ª´Â ½±´Ï´Ù.  ´ëÇѼöÇÐȸ¿¡¼­´Â ÀÌÇöÈ£±³¼ö(¿ï»ê´ë)°¡ ÁÖ°üÇÏ´Â special session ÀÌ ¿­¸®´Ï ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


http://www.kms.or.kr/kms/meetings/2013fall/program.html 


-> Contributed Talk Ŭ¸¯

-> Geometry, Dynamics, and Operator algebras Ŭ¸¯



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.421 (2013.10.16)



À̸§: ÀÌÇöÈ£

¼Ò¼Ó: ¿ï»ê´ë

Á¦¸ñ: A projection lifting problem using UCT and extension class $C(X)\otimes B$ by Jiang-Su Algebra

ÀϽÃ: 2013³â 10¿ù 18ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: We review the projection lifting problem from the corona algebra of $C(X)\otimes B$ and show a different approach using UCT and apply this approach to extension of $C(X)\otimes B$ by Jiang-Su algebra.


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: Connes' embedding conjecture and its equivalent

ÀϽÃ: 2013³â 10¿ù 31ÀÏ(¸ñ) 16:00-17:00 [¼öÇаú °­¿¬È¸]

Àå¼Ò: 129µ¿ 101È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: An amenable operator algebra which is not a C*-algebra

ÀϽÃ: 2013³â 11¿ù 1ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£

ÃÊ·Ï: The notion of amenability for Banach algebras was introduced by B. E. Johnson in 1970s and has been studied intensively since then. For several natural classes of Banach algebras, the amenability property is known to single out the "good" members of those classes. For example, B. E. Johnson's fundamental observation is that the Banach algebra L_1(G) of locally compact group G is amenable if and only if the group G is amenable. Another example is the celebrated result of Connes and Haagerup which states that a C*-algebra is amenable as a Banach algebra if and only if it is nuclear. It has been asked whether every amenable operator algebra (closed subalgebra of B(H)) is isomorphic to a (necessarily nuclear) C*-algebra. We give a counterexample to this problem. Alas, our exmaple is not separable.



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.420 (2013.9.25)



À̸§: ÇãÀ缺

¼Ò¼Ó: ÇѾç´ë

Á¦¸ñ: Bures distance and transition probability

ÀϽÃ: 2013³â 9¿ù 27ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£


À̸§: ÀÌÀçÇù

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Finite group actions on higher dimensional noncommutative tori

ÀϽÃ: 2013³â 10¿ù 11ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£


À̸§: ÀÌÇöÈ£

¼Ò¼Ó: ¿ï»ê´ë

Á¦¸ñ: A projection lifting problem using UCT and extension class $C(X)\otimes B$ by Jiang-Su Algebra

ÃÊ·Ï: We review the projection lifting problem from the corona algebra of $C(X)\otimes B$ and show a different approach using UCT and apply this approach to extension of $C(X)\otimes B$ by Jiang-Su algebra.

ÀϽÃ: 2013³â 10¿ù 18ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: Connes' embedding conjecture and its equivalent

ÀϽÃ: 2013³â 10¿ù 31ÀÏ(¸ñ) 16:00-17:00 [¼öÇаú °­¿¬È¸]

Àå¼Ò: 129µ¿ 101È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: Kyoto Univ.

Á¦¸ñ: TBA

ÀϽÃ: 2013³â 11¿ù 1ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 101È£



¡Ø 10¿ù 25-26ÀÏ¿¡ ¿­¸®´Â ´ëÇѼöÇÐȸ Çмú¹ßǥȸ¿¡¼­ ´ÙÀ½°ú °°ÀÌ special sessionÀÌ ¿­¸± ¿¹Á¤ÀÌ´Ï ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


ÁÖÁ¦: Geometry, Dynamics, and Operator Algebras

ÁÖ°ü: ÀÌÇöÈ£ ±³¼ö (¿ï»ê´ë)


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.418 (2013.9.4)



À̸§: À̿쿵

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Subnormal and quasinormal Toeplitz operators

ÀϽÃ: 2013³â 9¿ù 13ÀÏ(±Ý) 10:30-12:00

Àå¼Ò: 129µ¿ 301È£



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.417 (2013.7.17)



À̸§: °­º´Àç

¼Ò¼Ó: Canisius College, Buffalo

Á¦¸ñ: Definition of a locally compact quantum groupoid in the C*-algebra framework

ÀϽÃ: 2013³â 7¿ù 19ÀÏ(±Ý) 10:30-12:00, 13:00-14:00

Àå¼Ò: 27µ¿ 325È£



¡Ø 19ÀÏ ÀÛ¿ë¼Ò ¼¼¹Ì³ª Àå¼Ò´Â 27µ¿ 325È£ ÀÔ´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.416 (2013.7.9)



À̸§: °­º´Àç

¼Ò¼Ó: Canisius College, Buffalo

Á¦¸ñ: Definition of a locally compact quantum groupoid in the C*-algebra framework

ÀϽÃ: 2013³â 7¿ù 19ÀÏ(±Ý) 10:30-12:00, 13:00-14:00

Àå¼Ò: 27µ¿ 315È£



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.415 (2013.6.17)



PARC Workshop 2013 on Operator Theory and Its Applications


- ÀϽÃ: 2013³â 6¿ù 28ÀÏ(±Ý) 10:00 – 17:20

- Àå¼Ò: »ó»ê¼ö¸®°úÇаü 406È£

- ÀÏÁ¤:


10:00-10:40

Il Bong Jung (Kyungpook National Univ, Korea)

Weighted shifts on directed trees generating Stieltjes moment sequences


11:00-11:30

Ilwoo Cho (St. Ambrose Univ, USA)

Adelic Banach-space operators


11:50-12:20

Ji Eun Lee (Ewha Womans Univ, Korea)

Algebras of complex symmetric operators


14:00-14:40

Torsten Ehrhardt (Univ of California - Santa Curtz, USA)

On the invertibility of Toeplitz-plus-Hankel operators


15:00-15:30

Jaewoong Kim (Seoul National Univ, Korea)

The subnormality for the Schur product of two variable subnormal weighted shifts and its Berger measure


16:00-16:30

Hyun-Kyoung Kwon (Univ of Alabama, USA)

Similarity of Cowen-Douglas operators and operator models


16:50-17:20

Jasang Yoon (The Univ of Texas - PanAmerican, USA)

Generalized Cauchy-Hankel matrices and their applications



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ÀÛ¿ë¼Ò ¼Ò½Ä No.414 (2013.6.12)



À̸§: ±ÇÇö°æ

¼Ò¼Ó: Univ. of Alabama, USA

Á¦¸ñ: The Cowen-Douglas Operators and Spanning Holomorphic Cross-sections

ÀϽÃ: 2013³â 6¿ù 14ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£

ÃÊ·Ï: I will talk about the approach of K. Zhu of 2000 in dealing with operators in the Cowen-Douglas class and use it along with the more recent ones developed by myself and my collaborators to describe similarity.



¡Ø ¼¼¹Ì³ª¸¦ ¸¶Ä¡°í À̹ø Çбâ Á¾°­ ȸ½ÄÀ» ÇÒ ¿¹Á¤ÀÌ´Ï ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


¡Ø ¶ÇÇÑ, ¿ÃÇØ´Â ºÎ»ê¿¡¼­ ¿­¸®´Â AMC¿Í ±â°£ÀÌ °ÅÀÇ °ãÄ¡´Â °ü°è·Î KOTACÀ» ¿­Áö ¾Ê½À´Ï´Ù. ±× ´ë½Å 6¿ù 28ÀÏ(±Ý) ÇÏ·ç µ¿¾È À̿쿵 ¼±»ý´Ô ÁÖ°üÀ¸·Î


 Small one-day PARC workshopon on Operator Theory


¸¦ °³ÃÖÇÕ´Ï´Ù. ¼¼ºÎ ³»¿ëÀº ÃßÈÄ °øÁö°¡ ³ª°¥ °Ì´Ï´Ù. ºÎ»ê¿¡¼­ ¿­¸®´Â AMC¿Í ´õºÒ¾î ÀÌ À§Å©¼¥¿¡µµ ¸¹Àº Âü¼® ¹Ù¶ø´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.413 (2013.5.29)



À̸§: ÀÌÀÎÇù

¼Ò¼Ó: ÀÌÈ­¿©´ë

Á¦¸ñ: Groupoid $C^*$-algebras on self-similar groups

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 14:15

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: RIMS, Japan

Á¦¸ñ: Quantum correlations and Tsirelson's Problem

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 15:30

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Wei Sun

¼Ò¼Ó: East China Normal University, China

Á¦¸ñ: On generalized irrational rotation algebras

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 16:45

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Á¶ÀÏ¿ì

¼Ò¼Ó: St. Ambrose Univ., USA

Á¦¸ñ: Free probabilistic models and representations on arithmetic functions

ÀϽÃ: 2013³â 6¿ù 7ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ±ÇÇö°æ

¼Ò¼Ó: Univ. of Alabama, USA

Á¦¸ñ: TBA

ÀϽÃ: 2013³â 6¿ù 14ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 31ÀÏ ¼¼¹Ì³ª´Â ÀÌÇöÈ£(¿ï»ê´ë), ÀÌÈÆÈñ(¼­¿ï´ë)±³¼ö°¡ ÁÖ°üÇÏ´Â

Á¦ 4ȸ KOAS Çà»çÀÔ´Ï´Ù. ¼¼¹Ì³ª ¸¶Ä¡°í Àú³á ½Ä»ç°¡ ÀÖ½À´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.412 (2013.5.20)



À̸§: À±ÀÚ»ó

¼Ò¼Ó: University of Texas - Pan America, USA

Á¦¸ñ: Aluthge transform of multivariable operators

ÀϽÃ: 2013³â 5¿ù 24ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò : »ó»ê°ü 301È£


À̸§: ÀÌÀÎÇù

¼Ò¼Ó: ÀÌÈ­¿©´ë

Á¦¸ñ: Groupoid $C^*$-algebras on self-similar groups

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 14:15

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Narutaka Ozawa

¼Ò¼Ó: RIMS, Japan

Á¦¸ñ: Quantum correlations and Tsirelson's Problem

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 15:30

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Wei Sun

¼Ò¼Ó: East China Normal University, China

Á¦¸ñ: On generalized irrational rotation algebras

ÀϽÃ: 2013³â 5¿ù 31ÀÏ ±Ý¿äÀÏ ¿ÀÈÄ 16:45

Àå¼Ò : »ó»ê°ü 301È£


À̸§: Á¶ÀÏ¿ì

¼Ò¼Ó: St. Ambrose Univ., USA

Á¦¸ñ: Free probabilistic models and representations on arithmetic functions

ÀϽÃ: 2013³â 6¿ù 7ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ±ÇÇö°æ

¼Ò¼Ó: Univ. of Alabama, USA

Á¦¸ñ: TBA

ÀϽÃ: 2013³â 6¿ù 14ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 31ÀÏ ¼¼¹Ì³ª´Â ÀÌÇöÈ£(¿ï»ê´ë), ÀÌÈÆÈñ(¼­¿ï´ë)±³¼ö°¡ ÁÖ°üÇÏ´Â

Á¦ 4ȸ KOAS Çà»çÀÔ´Ï´Ù. ¼¼¹Ì³ª ¸¶Ä¡°í Àú³á ½Ä»ç°¡ ÀÖ½À´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.411 (2013.4.24)



À̸§: ÀÌ»óÈÆ

¼Ò¼Ó: Ãæ³²´ëÇб³

Á¦¸ñ: Subnormality of 2-variable weighted shifts with diagonal core

ÀϽÃ: 2013³â 4¿ù 26ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò : »ó»ê°ü 301È£


À̸§: À±ÀÚ»ó

¼Ò¼Ó: Univ. of Texas

Á¦¸ñ: TBA

ÀϽÃ: 2013³â 5¿ù 24ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: Á¶ÀÏ¿ì

¼Ò¼Ó: St. Ambrose Univ.

Á¦¸ñ: Free probabilistic models and representations on arithmetic functions

ÀϽÃ: 2013³â 6¿ù 7ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 3ÀÏ(´ëÇпøÀÔ½Ã), 5¿ù 10ÀÏ(¼öÇаú Çà»ç), 5¿ù 17ÀÏ(¼®°¡Åº½ÅÀÏ)¿¡´Â

¼¼¹Ì³ª°¡ ¾ø½À´Ï´Ù. ÇÑÆí, 5¿ù 7ÀÏ(È­¿äÀÏ) ¿¹Á¤µÇ¾ú´ø Russo ±³¼öÀÇ °­¿¬µµ

°³ÀÎ »çÁ¤À¸·Î ÃּҵǾúÀ½À» ¾Ë·Áµå¸³´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.410 (2013.4.17)



À̸§: ±èµ¿¿î

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: Quantum symmetry groups of finite spaces and free products of compact quantum groups

ÀϽÃ: 2013³â 4¿ù 19ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ÀÌ»óÈÆ

¼Ò¼Ó: Ãæ³²´ëÇб³

Á¦¸ñ: Subnormality of 2-variable weighted shifts with diagonal core

ÀϽÃ: 2013³â 4¿ù 26ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò : »ó»ê°ü 301È£



¡Ø 5¿ù 3ÀÏ(´ëÇпøÀÔ½Ã), 5¿ù 10ÀÏ(¼öÇаú Çà»ç), 5¿ù 17ÀÏ(¼®°¡Åº½ÅÀÏ)¿¡´Â

¼¼¹Ì³ª°¡ ¾ø½À´Ï´Ù. ÇÑÆí, 5¿ù 7ÀÏ(È­¿äÀÏ) ¿¹Á¤µÇ¾ú´ø Russo ±³¼öÀÇ °­¿¬µµ

°³ÀÎ »çÁ¤À¸·Î ÃּҵǾúÀ½À» ¾Ë·Áµå¸³´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.409 (2013.4.10)



À̸§: ȲÀμº

¼Ò¼Ó: ¼º±Õ°ü´ë

Á¦¸ñ: Toeplitz Completion Problems

ÀϽÃ: 2013³â 4¿ù 12ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ±èµ¿¿î

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: Quantum symmetry groups of finite spaces and free products of compact quantum groups

ÀϽÃ: 2013³â 4¿ù 19ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 3ÀÏ(´ëÇпøÀÔ½Ã), 5¿ù 10ÀÏ(¼öÇаú Çà»ç), 5¿ù 17ÀÏ(¼®°¡Åº½ÅÀÏ)¿¡´Â

¼¼¹Ì³ª°¡ ¾ø½À´Ï´Ù. ±× ´ë½Å Russo ±³¼öÀÇ °­¿¬ÀÌ 5¿ù 7ÀÏ(È­¿äÀÏ) ¿ÀÈÄ 4½Ã

ÀÖÀ» ¿¹Á¤ÀÔ´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.408 (2013.4.3)



À̸§: °­ÀºÁö

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: AF labeled graph C^*-algebras

ÀϽÃ: 2013³â 4¿ù 5ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ȲÀμº

¼Ò¼Ó: ¼º±Õ°ü´ë

Á¦¸ñ: Toeplitz Completion Problems

ÀϽÃ: 2013³â 4¿ù 12ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: ±èµ¿¿î

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: Quantum symmetry groups of finite spaces and free products of compact quantum groups

ÀϽÃ: 2013³â 4¿ù 19ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 3ÀÏ(´ëÇпøÀÔ½Ã), 5¿ù 10ÀÏ(¼öÇаú Çà»ç), 5¿ù 17ÀÏ(¼®°¡Åº½ÅÀÏ)¿¡´Â

¼¼¹Ì³ª°¡ ¾ø½À´Ï´Ù. ±× ´ë½Å Russo ±³¼öÀÇ °­¿¬ÀÌ 5¿ù 7ÀÏ(È­¿äÀÏ) ¿ÀÈÄ 4½Ã

ÀÖÀ» ¿¹Á¤ÀÔ´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.407 (2013.3.27)



À̸§: Torsten Ehrhardt

¼Ò¼Ó: University of California, Santa Cruz

Á¦¸ñ: Resultant matrices and inversion of Bezoutians 

ÀϽÃ: 2013³â 3¿ù 29ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£

Abstract:

The subject of  this talk are special types of structured matrices.

The inversion of finite Toeplitz matrices is very well studied, and the inverses of Toeplitz

matrices are so-called Bezout matrices. We pursue to opposite goal, the inversion of

(invertible) Bezout matrices. Special attention is paid to explicit formulas and a fast

computation of the inverse. It turns out that the problem is related to another problem,

namely the description of the kernel of generalized resultant matrices.

This problem is studied as well. If time permits, we will also discuss the inversion of

Toeplitz+Hankel Bezoutians, which are the inverses of Toeplitz+Hankel matrices.

The talk is based on joint work with Karla Rost.


À̸§: °­ÀºÁö

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: AF labeled graph C^*-algebras

ÀϽÃ: 2013³â 4¿ù 5ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: Takanori Yamamoto

¼Ò¼Ó: Hokkai-Gakuen University

Á¦¸ñ: Normal singular integral operators

ÀϽÃ: 2013³â 4¿ù 12ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø 5¿ù 3ÀÏ(´ëÇпøÀÔ½Ã), 5¿ù 10ÀÏ(¼öÇаú Çà»ç), 5¿ù 17ÀÏ(¼®°¡Åº½ÅÀÏ)¿¡´Â

¼¼¹Ì³ª°¡ ¾ø½À´Ï´Ù. ±× ´ë½Å Russo ±³¼öÀÇ °­¿¬ÀÌ 5¿ù 7ÀÏ(È­¿äÀÏ) ¿ÀÈÄ 4½Ã

ÀÖÀ» ¿¹Á¤ÀÔ´Ï´Ù.


¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.406 (2013.3.20)



À̸§: ¹èÁØ¿ì

¼Ò¼Ó: Center for Quantum Technologies (CQT), Singapore and Institute of Photonic Sciences (ICFO), Barcelona

Á¦¸ñ: Quantum Cryptography and Its Related Problems 

ÀϽÃ: 2013³â 3¿ù 22ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: Torsten Ehrhardt

¼Ò¼Ó: Univ of Santa Curtz

Á¦¸ñ: TBA 

ÀϽÃ: 2013³â 3¿ù 29ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: °­ÀºÁö

¼Ò¼Ó: ¼­¿ï´ëÇб³

Á¦¸ñ: AF labeled graph C^*-algebras

ÀϽÃ: 2013³â 4¿ù 5ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.405 (2013.3.13)



À̸§: ÀÌÈÆÈñ

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Non-commutative Lp-spaces and analysis on quantum spaces

ÀϽÃ: 2013³â 3¿ù 14ÀÏ ¸ñ¿äÀÏ ¿ÀÈÄ 16:00 (¼öÇаú°­¿¬È¸)

Àå¼Ò: »ó»ê°ü °­´ç


À̸§: ÀÌÈÆÈñ

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Operator Biflatness of L^1-algebras of compact quantum groups

ÀϽÃ: 2013³â 3¿ù 15ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£

ÃÊ·Ï: In this talk we will see that the $L^1$-algebra of non-Kac type compact quantum groups does not satisfy operator biflatness. Since $q$-deformations of compact connected Lie groups (including the well-known SUq(2)) are co-amenable, this gives counter examples of the conjecture that $L^1(\Gb)$ is operator amenable if and only if $\Gb$ is amenable and co-amenable for any locally compact quantum group $\Gb$.


À̸§: ¹èÁØ¿ì

¼Ò¼Ó: Center for Quantum Technologies (CQT), Singapore and Institute of Photonic Sciences (ICFO), Barcelona

Á¦¸ñ: Quantum Cryptography and Its Related Problems 

ÀϽÃ: 2013³â 3¿ù 22ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: Torsten Ehrhardt

¼Ò¼Ó: Univ of Santa Curtz

Á¦¸ñ: TBA 

ÀϽÃ: 2013³â 3¿ù 29ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/



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ÀÛ¿ë¼Ò ¼Ò½Ä No.404 (2013.3.4)



À̹ø Çбâ ÀÛ¿ë¼Ò ¼¼¹Ì³ª´Â 3¿ù 15ÀϺÎÅÍ ½ÃÀÛÇÕ´Ï´Ù.

½Ã°£Àº ¿¹Àü°ú °°ÀÌ ±Ý¿äÀÏ ¿ÀÀü 10:30 ÀÔ´Ï´Ù.

À̹ø ÇбâºÎÅÍ ÀÌÈÆÈñ ±³¼ö°¡ ÃæºÏ´ë¿¡¼­ ¼­¿ï´ë·Î ÀÚ¸®¸¦ ¿Å±â¼Ì½À´Ï´Ù.



À̸§: ÀÌÈÆÈñ

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Non-commutative Lp-spaces and analysis on quantum spaces

ÀϽÃ: 2013³â 3¿ù 14ÀÏ ¸ñ¿äÀÏ ¿ÀÈÄ 16:00 (¼öÇаú°­¿¬È¸)

Àå¼Ò: »ó»ê°ü °­´ç


À̸§: ÀÌÈÆÈñ

¼Ò¼Ó: ¼­¿ï´ë

Á¦¸ñ: Operator Biflatness of L^1-algebras of compact quantum groups

ÀϽÃ: 2013³â 3¿ù 15ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£

ÃÊ·Ï: In this talk we will see that the $L^1$-algebra of non-Kac type compact quantum groups does not satisfy operator biflatness. Since $q$-deformations of compact connected Lie groups (including the well-known SUq(2)) are co-amenable, this gives counter examples of the conjecture that $L^1(\Gb)$ is operator amenable if and only if $\Gb$ is amenable and co-amenable for any locally compact quantum group $\Gb$.


À̸§: ¹èÁØ¿ì

¼Ò¼Ó: Center for Quantum Technologies (CQT), Singapore and Institute of Photonic Sciences (ICFO), Barcelona

Á¦¸ñ: Quantum Cryptography and Its Related Problems 

ÀϽÃ: 2013³â 3¿ù 22ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£


À̸§: Torsten Ehrhardt

¼Ò¼Ó: Univ of Santa Curtz

Á¦¸ñ: TBA 

ÀϽÃ: 2013³â 3¿ù 29ÀÏ ±Ý¿äÀÏ ¿ÀÀü 10:30

Àå¼Ò: »ó»ê°ü 301È£



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ÀÛ¿ë¼Ò ¼Ò½Ä No.403 (2013.1.28)



¿¬»ç: Lin Chen

¼Ò¼Ó: University of Waterloo and National University of Singapore

Á¦¸ñ: Separability problem for multipartite states of rank at most four

ÀϽÃ: 2013³â 2¿ù 4ÀÏ ¿ù¿äÀÏ 10:30

Àå¼Ò: »ó»ê°ü 301È£


¿¬»ç: Lin Chen

¼Ò¼Ó: University of Waterloo and National University of Singapore

Á¦¸ñ: Length of separable states and symmetrical informationally complete POVM

ÀϽÃ: 2013³â 2¿ù 4ÀÏ ¿ù¿äÀÏ 16:00

Àå¼Ò: »ó»ê°ü 301È£



¡Ø ¼­¿ï´ë ÀÛ¿ë¼Ò ¼¼¹Ì³ª ȨÆäÀÌÁö http://www.math.snu.ac.kr/~kye/seminar/