10 83: Difference between revisions
No edit summary |
m (Reverted edits by DartrOcrel (Talk); changed back to last version by ScottTestRobot) |
(One intermediate revision by one other user not shown) | |
(No difference)
|
Latest revision as of 23:25, 27 May 2009
|
|
![]() (KnotPlot image) |
See the full Rolfsen Knot Table. Visit 10 83's page at the Knot Server (KnotPlot driven, includes 3D interactive images!) |
Warning. There is a mixup in the original (1976) Rolfsen table between the pictures and the invariants of the knots 10_83 and 10_86. That mixup lead to a similar mixup here. In the new (2003) edition of Rolfsen's book the mixup was corrected and on August 17, 2004, it was corrected here (actually in Dror's original Knot Atlas) consistently with Rolfsen's correction. In the years between 1976 and 2003 other authors fixed the problem in different ways and our enumeration here may be different than theirs. Dror would like to thank Z-X. Tao for telling him about the (now corrected) mixup here and A. Stoimenow for telling him about the mixup in Rolfsen's original table.
Knot presentations
Planar diagram presentation | X1627 X5,16,6,17 X13,1,14,20 X7,15,8,14 X3948 X9,5,10,4 X19,11,20,10 X11,19,12,18 X17,13,18,12 X15,2,16,3 |
Gauss code | -1, 10, -5, 6, -2, 1, -4, 5, -6, 7, -8, 9, -3, 4, -10, 2, -9, 8, -7, 3 |
Dowker-Thistlethwaite code | 6 8 16 14 4 18 20 2 12 10 |
Conway Notation | [.31.20] |
Minimum Braid Representative | A Morse Link Presentation | An Arc Presentation | ||||
Length is 11, width is 4, Braid index is 4 |
![]() |
![]() [{10, 4}, {3, 8}, {5, 9}, {4, 7}, {2, 5}, {8, 6}, {7, 11}, {6, 10}, {12, 3}, {11, 13}, {1, 12}, {13, 2}, {9, 1}] |
[edit Notes on presentations of 10 83]
KnotTheory`
. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting.
(The path below may be different on your system, and possibly also the KnotTheory` date)
In[1]:=
|
AppendTo[$Path, "C:/drorbn/projects/KAtlas/"];
<< KnotTheory`
|
Loading KnotTheory` version of May 31, 2006, 14:15:20.091.
|
In[3]:=
|
K = Knot["10 83"];
|
In[4]:=
|
PD[K]
|
KnotTheory::loading: Loading precomputed data in PD4Knots`.
|
Out[4]=
|
X1627 X5,16,6,17 X13,1,14,20 X7,15,8,14 X3948 X9,5,10,4 X19,11,20,10 X11,19,12,18 X17,13,18,12 X15,2,16,3 |
In[5]:=
|
GaussCode[K]
|
Out[5]=
|
-1, 10, -5, 6, -2, 1, -4, 5, -6, 7, -8, 9, -3, 4, -10, 2, -9, 8, -7, 3 |
In[6]:=
|
DTCode[K]
|
Out[6]=
|
6 8 16 14 4 18 20 2 12 10 |
(The path below may be different on your system)
In[7]:=
|
AppendTo[$Path, "C:/bin/LinKnot/"];
|
In[8]:=
|
ConwayNotation[K]
|
Out[8]=
|
[.31.20] |
In[9]:=
|
br = BR[K]
|
KnotTheory::credits: The minimum braids representing the knots with up to 10 crossings were provided by Thomas Gittings. See arXiv:math.GT/0401051.
|
Out[9]=
|
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \textrm{BR}(4,\{1,1,2,-1,2,-3,2,2,-3,2,-3\})} |
In[10]:=
|
{First[br], Crossings[br], BraidIndex[K]}
|
KnotTheory::credits: The braid index data known to KnotTheory` is taken from Charles Livingston's http://www.indiana.edu/~knotinfo/.
|
KnotTheory::loading: Loading precomputed data in IndianaData`.
|
Out[10]=
|
{ 4, 11, 4 } |
In[11]:=
|
Show[BraidPlot[br]]
|
|
Out[11]=
|
-Graphics- |
In[12]:=
|
Show[DrawMorseLink[K]]
|
KnotTheory::credits: "MorseLink was added to KnotTheory` by Siddarth Sankaran at the University of Toronto in the summer of 2005."
|
KnotTheory::credits: "DrawMorseLink was written by Siddarth Sankaran at the University of Toronto in the summer of 2005."
|
![]() |
Out[12]=
|
-Graphics- |
In[13]:=
|
ap = ArcPresentation[K]
|
Out[13]=
|
ArcPresentation[{10, 4}, {3, 8}, {5, 9}, {4, 7}, {2, 5}, {8, 6}, {7, 11}, {6, 10}, {12, 3}, {11, 13}, {1, 12}, {13, 2}, {9, 1}] |
In[14]:=
|
Draw[ap]
|
![]() |
Out[14]=
|
-Graphics- |
Three dimensional invariants
|
Four dimensional invariants
|
Polynomial invariants
A1 Invariants.
Weight | Invariant |
---|---|
1 | |
2 | |
3 | |
4 | |
5 |
A2 Invariants.
Weight | Invariant |
---|---|
1,0 | |
1,1 | |
2,0 |
A3 Invariants.
Weight | Invariant |
---|---|
0,1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{14}-3 q^{12}+q^{10}+6 q^8-11 q^6+5 q^4+15 q^2-20+7 q^{-2} +21 q^{-4} -28 q^{-6} +2 q^{-8} +20 q^{-10} -18 q^{-12} -3 q^{-14} +13 q^{-16} +2 q^{-18} -5 q^{-20} -2 q^{-22} +17 q^{-24} -5 q^{-26} -20 q^{-28} +23 q^{-30} -3 q^{-32} -26 q^{-34} +22 q^{-36} + q^{-38} -17 q^{-40} +13 q^{-42} +2 q^{-44} -7 q^{-46} +4 q^{-48} -2 q^{-52} + q^{-54} } |
1,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -q^7+2 q^5-q^3+3 q- q^{-1} +3 q^{-3} -3 q^{-5} + q^{-7} - q^{-9} + q^{-13} +3 q^{-17} -2 q^{-19} +3 q^{-21} -2 q^{-23} + q^{-25} -2 q^{-27} + q^{-29} - q^{-31} } |
A4 Invariants.
Weight | Invariant |
---|---|
0,1,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{16}-2 q^{14}-q^{12}+4 q^{10}-2 q^8-4 q^6+7 q^4+8 q^2-7-4 q^{-2} +15 q^{-4} +5 q^{-6} -22 q^{-8} - q^{-10} +20 q^{-12} -12 q^{-14} -20 q^{-16} +17 q^{-18} +12 q^{-20} -15 q^{-22} +3 q^{-24} +23 q^{-26} -2 q^{-28} -14 q^{-30} +18 q^{-32} +8 q^{-34} -26 q^{-36} -2 q^{-38} +18 q^{-40} -13 q^{-42} -19 q^{-44} +13 q^{-46} +12 q^{-48} -11 q^{-50} -6 q^{-52} +12 q^{-54} +3 q^{-56} -9 q^{-58} + q^{-60} +4 q^{-62} -2 q^{-64} - q^{-66} + q^{-68} } |
1,0,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -q^8+2 q^6-q^4+2 q^2+2- q^{-2} +3 q^{-4} -3 q^{-6} + q^{-8} -2 q^{-10} + q^{-16} + q^{-18} + q^{-20} +3 q^{-22} -2 q^{-24} +3 q^{-26} -2 q^{-28} -2 q^{-34} + q^{-36} - q^{-38} } |
B2 Invariants.
Weight | Invariant |
---|---|
0,1 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -q^{14}+3 q^{12}-7 q^{10}+12 q^8-17 q^6+25 q^4-29 q^2+32-31 q^{-2} +27 q^{-4} -16 q^{-6} +4 q^{-8} +12 q^{-10} -28 q^{-12} +43 q^{-14} -55 q^{-16} +60 q^{-18} -61 q^{-20} +56 q^{-22} -45 q^{-24} +31 q^{-26} -14 q^{-28} - q^{-30} +15 q^{-32} -24 q^{-34} +30 q^{-36} -31 q^{-38} +29 q^{-40} -25 q^{-42} +18 q^{-44} -13 q^{-46} +8 q^{-48} -4 q^{-50} +2 q^{-52} - q^{-54} } |
1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{24}-3 q^{20}-3 q^{18}+4 q^{16}+9 q^{14}-q^{12}-14 q^{10}-9 q^8+16 q^6+22 q^4-6 q^2-29-9 q^{-2} +29 q^{-4} +26 q^{-6} -18 q^{-8} -33 q^{-10} + q^{-12} +31 q^{-14} +10 q^{-16} -24 q^{-18} -16 q^{-20} +17 q^{-22} +19 q^{-24} -11 q^{-26} -19 q^{-28} +7 q^{-30} +22 q^{-32} - q^{-34} -22 q^{-36} -3 q^{-38} +24 q^{-40} +11 q^{-42} -24 q^{-44} -21 q^{-46} +18 q^{-48} +30 q^{-50} -7 q^{-52} -35 q^{-54} -11 q^{-56} +28 q^{-58} +23 q^{-60} -13 q^{-62} -26 q^{-64} -2 q^{-66} +19 q^{-68} +10 q^{-70} -7 q^{-72} -10 q^{-74} +6 q^{-78} +2 q^{-80} -2 q^{-82} -2 q^{-84} + q^{-88} } |
D4 Invariants.
Weight | Invariant |
---|---|
1,0,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{18}-3 q^{16}+4 q^{14}-6 q^{12}+10 q^{10}-14 q^8+17 q^6-18 q^4+26 q^2-24+25 q^{-2} -22 q^{-4} +23 q^{-6} -17 q^{-8} +4 q^{-10} -2 q^{-12} -7 q^{-14} +17 q^{-16} -30 q^{-18} +33 q^{-20} -37 q^{-22} +50 q^{-24} -45 q^{-26} +47 q^{-28} -42 q^{-30} +45 q^{-32} -30 q^{-34} +23 q^{-36} -20 q^{-38} +6 q^{-40} +3 q^{-42} -12 q^{-44} +11 q^{-46} -23 q^{-48} +25 q^{-50} -23 q^{-52} +23 q^{-54} -23 q^{-56} +21 q^{-58} -14 q^{-60} +12 q^{-62} -10 q^{-64} +7 q^{-66} -4 q^{-68} +2 q^{-70} -2 q^{-72} + q^{-74} } |
G2 Invariants.
Weight | Invariant |
---|---|
1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{32}-3 q^{30}+7 q^{28}-13 q^{26}+14 q^{24}-11 q^{22}-2 q^{20}+25 q^{18}-48 q^{16}+71 q^{14}-74 q^{12}+48 q^{10}+3 q^8-73 q^6+144 q^4-179 q^2+164-87 q^{-2} -33 q^{-4} +156 q^{-6} -232 q^{-8} +235 q^{-10} -149 q^{-12} +11 q^{-14} +123 q^{-16} -200 q^{-18} +178 q^{-20} -72 q^{-22} -68 q^{-24} +173 q^{-26} -193 q^{-28} +109 q^{-30} +43 q^{-32} -201 q^{-34} +297 q^{-36} -286 q^{-38} +167 q^{-40} +19 q^{-42} -207 q^{-44} +329 q^{-46} -341 q^{-48} +249 q^{-50} -77 q^{-52} -102 q^{-54} +230 q^{-56} -260 q^{-58} +190 q^{-60} -50 q^{-62} -91 q^{-64} +173 q^{-66} -161 q^{-68} +62 q^{-70} +79 q^{-72} -189 q^{-74} +222 q^{-76} -162 q^{-78} +27 q^{-80} +114 q^{-82} -217 q^{-84} +239 q^{-86} -178 q^{-88} +72 q^{-90} +38 q^{-92} -119 q^{-94} +146 q^{-96} -127 q^{-98} +79 q^{-100} -24 q^{-102} -20 q^{-104} +42 q^{-106} -47 q^{-108} +39 q^{-110} -24 q^{-112} +12 q^{-114} + q^{-116} -7 q^{-118} +7 q^{-120} -7 q^{-122} +4 q^{-124} -2 q^{-126} + q^{-128} } |
.
KnotTheory`
, as shown in the (simulated) Mathematica session below. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting. This Mathematica session is also available (albeit only for the knot 5_2) as the notebook PolynomialInvariantsSession.nb.
(The path below may be different on your system, and possibly also the KnotTheory` date)
In[1]:=
|
AppendTo[$Path, "C:/drorbn/projects/KAtlas/"];
<< KnotTheory`
|
Loading KnotTheory` version of August 31, 2006, 11:25:27.5625.
|
In[3]:=
|
K = Knot["10 83"];
|
In[4]:=
|
Alexander[K][t]
|
KnotTheory::loading: Loading precomputed data in PD4Knots`.
|
Out[4]=
|
In[5]:=
|
Conway[K][z]
|
Out[5]=
|
In[6]:=
|
Alexander[K, 2][t]
|
KnotTheory::credits: The program Alexander[K, r] to compute Alexander ideals was written by Jana Archibald at the University of Toronto in the summer of 2005.
|
Out[6]=
|
In[7]:=
|
{KnotDet[K], KnotSignature[K]}
|
Out[7]=
|
{ 83, 2 } |
In[8]:=
|
Jones[K][q]
|
KnotTheory::loading: Loading precomputed data in Jones4Knots`.
|
Out[8]=
|
In[9]:=
|
HOMFLYPT[K][a, z]
|
KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.
|
Out[9]=
|
In[10]:=
|
Kauffman[K][a, z]
|
KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
|
Out[10]=
|
"Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {K11a307, K11a323,}
Same Jones Polynomial (up to mirroring, Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q\leftrightarrow q^{-1}} ): {10_73,}
KnotTheory`
. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting.
(The path below may be different on your system, and possibly also the KnotTheory` date)
In[1]:=
|
AppendTo[$Path, "C:/drorbn/projects/KAtlas/"];
<< KnotTheory`
|
Loading KnotTheory` version of May 31, 2006, 14:15:20.091.
|
In[3]:=
|
K = Knot["10 83"];
|
In[4]:=
|
{A = Alexander[K][t], J = Jones[K][q]}
|
KnotTheory::loading: Loading precomputed data in PD4Knots`.
|
KnotTheory::loading: Loading precomputed data in Jones4Knots`.
|
Out[4]=
|
{ , Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -q^8+3 q^7-6 q^6+10 q^5-13 q^4+14 q^3-13 q^2+11 q-7+4 q^{-1} - q^{-2} } } |
In[5]:=
|
DeleteCases[Select[AllKnots[], (A === Alexander[#][t]) &], K]
|
KnotTheory::loading: Loading precomputed data in DTCode4KnotsTo11`.
|
KnotTheory::credits: The GaussCode to PD conversion was written by Siddarth Sankaran at the University of Toronto in the summer of 2005.
|
Out[5]=
|
{K11a307, K11a323,} |
In[6]:=
|
DeleteCases[
Select[
AllKnots[],
(J === Jones[#][q] || (J /. q -> 1/q) === Jones[#][q]) &
],
K
]
|
KnotTheory::loading: Loading precomputed data in Jones4Knots11`.
|
Out[6]=
|
{10_73,} |
Vassiliev invariants
V2 and V3: | (1, 2) |
V2,1 through V6,9: |
|
V2,1 through V6,9 were provided by Petr Dunin-Barkowski <barkovs@itep.ru>, Andrey Smirnov <asmirnov@itep.ru>, and Alexei Sleptsov <sleptsov@itep.ru> and uploaded on October 2010 by User:Drorbn. Note that they are normalized differently than V2 and V3.
Khovanov Homology
The coefficients of the monomials Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle t^rq^j} are shown, along with their alternating sums (fixed Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j} , alternation over Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle r} ). The squares with yellow highlighting are those on the "critical diagonals", where Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j-2r=s+1} or Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j-2r=s-1} , where Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle s=} 2 is the signature of 10 83. Nonzero entries off the critical diagonals (if any exist) are highlighted in red. |
|
Integral Khovanov Homology
(db, data source) |
|
The Coloured Jones Polynomials
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n} | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle J_n} |
2 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{23}-3 q^{22}+2 q^{21}+7 q^{20}-18 q^{19}+7 q^{18}+32 q^{17}-52 q^{16}+q^{15}+85 q^{14}-91 q^{13}-26 q^{12}+145 q^{11}-110 q^{10}-61 q^9+175 q^8-97 q^7-83 q^6+159 q^5-59 q^4-82 q^3+107 q^2-19 q-56+48 q^{-1} + q^{-2} -23 q^{-3} +12 q^{-4} +2 q^{-5} -4 q^{-6} + q^{-7} } |
3 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -q^{45}+3 q^{44}-2 q^{43}-3 q^{42}+2 q^{41}+11 q^{40}-9 q^{39}-24 q^{38}+17 q^{37}+54 q^{36}-25 q^{35}-105 q^{34}+16 q^{33}+184 q^{32}+20 q^{31}-279 q^{30}-97 q^{29}+372 q^{28}+226 q^{27}-457 q^{26}-378 q^{25}+498 q^{24}+555 q^{23}-507 q^{22}-725 q^{21}+481 q^{20}+867 q^{19}-422 q^{18}-972 q^{17}+339 q^{16}+1036 q^{15}-243 q^{14}-1047 q^{13}+129 q^{12}+1015 q^{11}-18 q^{10}-925 q^9-100 q^8+806 q^7+184 q^6-640 q^5-251 q^4+481 q^3+255 q^2-308 q-243+186 q^{-1} +186 q^{-2} -88 q^{-3} -132 q^{-4} +39 q^{-5} +76 q^{-6} -8 q^{-7} -45 q^{-8} +4 q^{-9} +19 q^{-10} -7 q^{-12} -2 q^{-13} +4 q^{-14} - q^{-15} } |
4 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{74}-3 q^{73}+2 q^{72}+3 q^{71}-6 q^{70}+5 q^{69}-10 q^{68}+15 q^{67}+14 q^{66}-41 q^{65}+4 q^{64}-23 q^{63}+81 q^{62}+83 q^{61}-145 q^{60}-91 q^{59}-127 q^{58}+270 q^{57}+411 q^{56}-196 q^{55}-390 q^{54}-670 q^{53}+370 q^{52}+1205 q^{51}+313 q^{50}-577 q^{49}-1952 q^{48}-303 q^{47}+2055 q^{46}+1750 q^{45}+188 q^{44}-3487 q^{43}-2140 q^{42}+2023 q^{41}+3557 q^{40}+2245 q^{39}-4266 q^{38}-4474 q^{37}+760 q^{36}+4730 q^{35}+4842 q^{34}-3919 q^{33}-6263 q^{32}-1085 q^{31}+4893 q^{30}+6944 q^{29}-2870 q^{28}-7048 q^{27}-2771 q^{26}+4292 q^{25}+8120 q^{24}-1549 q^{23}-6895 q^{22}-4044 q^{21}+3122 q^{20}+8329 q^{19}-40 q^{18}-5817 q^{17}-4833 q^{16}+1397 q^{15}+7463 q^{14}+1463 q^{13}-3823 q^{12}-4793 q^{11}-530 q^{10}+5457 q^9+2331 q^8-1433 q^7-3648 q^6-1787 q^5+2909 q^4+2051 q^3+296 q^2-1883 q-1794+940 q^{-1} +1045 q^{-2} +770 q^{-3} -530 q^{-4} -1028 q^{-5} +117 q^{-6} +245 q^{-7} +472 q^{-8} -19 q^{-9} -371 q^{-10} -3 q^{-11} -13 q^{-12} +160 q^{-13} +30 q^{-14} -101 q^{-15} +10 q^{-16} -20 q^{-17} +38 q^{-18} +10 q^{-19} -24 q^{-20} +4 q^{-21} -5 q^{-22} +7 q^{-23} +2 q^{-24} -4 q^{-25} + q^{-26} } |
Computer Talk
Much of the above data can be recomputed by Mathematica using the package KnotTheory`
. See A Sample KnotTheory` Session, or any of the Computer Talk sections above.
Modifying This Page
Read me first: Modifying Knot Pages
See/edit the Rolfsen Knot Page master template (intermediate). See/edit the Rolfsen_Splice_Base (expert). Back to the top. |
|