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Dror Bar-Natan:
Talks:
## Everything around $sl_{2+}^\epsilon$ is **DoPeGDO**. So what?

**Abstract.** I'll explain what "everything around" means:
classical and quantum $m$, $\Delta$, $S$, $tr$, $R$, $C$, and $\theta$,
as well as $P$, $\Phi$, $J$, ${\mathbb D}$, and more, and all of their
compositions. What **DoPeGDO** means: the category of Docile Perturbed
Gaussian Differential Operators. And what $sl_{2+}^\epsilon$ means:
a solvable approximation of the semi-simple Lie algebra $sl_2$.

Knot theorists should rejoice because all this leads to very powerful and
well-behaved poly-time-computable knot invariants. Quantum algebraists
should rejoice because it's a realistic playground for testing complicated
equations and theories.

This is joint work with Roland van der Veen and continues work by
Rozansky, Ohtsuki, and Overbay.

**URL:** http://drorbn.net/k23.

**Handout:**
DoPeGDO.html,
DoPeGDO.pdf,
DoPeGDO.png.

See videos at DaNang-1905 and at CRM-1907.

**Links:**
NCSU
Ov
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atoms
cm
engine
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kiw
kt
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objects
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talks

**Sources:** pensieve.